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Open Access Article
1 - Preliminary Construction and Validation of Cognitive Brain Function Assessment Test Emphasizing on Age among university students
فریده حمیدیThe aim of this research was to construct and validate a new cognitive brain function assessment test with an emphasize on the age of student. The research type was test construction and validation. the population in this study was all human sciences and math students MoreThe aim of this research was to construct and validate a new cognitive brain function assessment test with an emphasize on the age of student. The research type was test construction and validation. the population in this study was all human sciences and math students studying in undergraduate and postgraduate levels of Shahid Rajaee Teachers Training University in 2011-2012. The sample consisted of 100 university student whose ages ranged between 20 to 36 (50male and 50 female). Which were selected by cluster sampling. The research tools were the veseaoher made Cognitive Brain Function Assessment. Test and the PASAT(Sampson,1956). To achieve the factor structure model validity, varimax rotation and t- test for independent groups were applied. Results showed high correlation between variables and also six factors as the clusters were identified: 1)Target identification accuracy, 2) Location error,3)Two seconds right error,4) Three seconds right error,5)Three seconds left error and 6) Two seconds left error. Also, the results of t- test for independent groups showed that merely in the target identification accuracy, the differences between meaningful differences concerning age exist among the university students(p < 0.05). Manuscript profile -
Open Access Article
2 - Evaluation Of Salicylic Acid Pretreatment On Germination And Seedling Growth Characteristics On Medicinal Plant Of Black Cumin (Nigella Sativa L.) under salt stress
فرشاد سرخیBlack cumin is used medicinally as a decongestant, regularizer, laxative, anti -constipation and sexual enhancer in men. It is also used in the treatment of cancer, diabetes, and ulcers . Salinity stress could decrease seed germination and growth of plants. It has been MoreBlack cumin is used medicinally as a decongestant, regularizer, laxative, anti -constipation and sexual enhancer in men. It is also used in the treatment of cancer, diabetes, and ulcers . Salinity stress could decrease seed germination and growth of plants. It has been found that salicylic acid as endogenous growth regulator of natural phenolic compounds that cause to reduce negative effects of the salt stress on different aspects of plant life. The current research was carried out to evaluate probable positive effects of salicylic acid on the germination and initial growth properties of Nigella Sativa when put with salinity stress. For this purpose, an experiment was conducted of factorial experiment in a randomized complete design in four replications. Treatments consisted of salicylic acid levels of 0, 0.2, 0.6 and 1 mm and salinity stress of 0, 100, 150, and 200 mm. The results indicated that salinity stress decreased germination percentage, rate of germination, radical and plumule length and seedling dry weight. The greatest effect of root/shoot ratio was obtained in concentration of 200mm salt stress. While salicylic acid increased the germination percentage, germination rate, root length, shoot length, seedling dry weight and root/shoot ratio under salt stress and non-stress. Most of these traits were observed at concentration of 1 mm salicylic acid. According to the results of seed priming by salicylic acid in regions with salt stree can increase the resistance of Nigella sativa seeds in the germination stage and initial seedling growth Manuscript profile -
Open Access Article
3 - Effect of Salicylic Acid Seed Priming on Some Physiological Traits of Cowpea (Vigna unguiculata L.) Under Water Deficit at Podding Stage
F. Shekari A. Pakmehr M. Rastgoo M. Vazayefi M.J. Goreishi NasabThe effects of seed priming by salicylic acid on some physiological traits of cowpea (Vigna unguiculata L.) cv. Parastou were investigated under water deficit conditions at podding stage. Experiment was done as a split block design with 3 replications in 2008 at Researc MoreThe effects of seed priming by salicylic acid on some physiological traits of cowpea (Vigna unguiculata L.) cv. Parastou were investigated under water deficit conditions at podding stage. Experiment was done as a split block design with 3 replications in 2008 at Research Station of Zanjan University. Main factor consisted of two levels of irrigation (normal irrigation and deficit irrigation at podding stages) and seed priming with salicylic acid as a sub factor in 5 levels (0, 900, 1800, 2700, 3600 µM). Analysis of variance showed that irrigation and salicylic acid had significant effects on all characters. Furthermore, interaction between irrigation and salicylic acid were significant only for leaf relative water content, photosynthetic rates, content of chlorophyll a, total chlorophyll and seed yield. Mean comparisons showed that relative water content, photosynthetic rates, content of chlorophyll a and total chlorophyll and seed yield decreased due to water deficit as compared to normal irrigation, but leaf internal CO2 increased. These traits, except leaf internal CO2 wereincreased through primed seed priming as compared to untreated seeds. Priming of seeds with 2700 µM salicylic acid had desirable effect on all traits compared to other treatments in irrigated and water deficit conditions. Seed priming with 2700 µM salicylic acid caused higher relative water content, which protects plants against water stress. In addition to increasing chlorophyll content and stomatal conductance, photosynthetic rates of plant increased. Thus, seed priming with 2700 µM salicylic acid produced highest seed yield (4424 and 2475 kg.ha-1) in both regular and deficits irrigations at podding stage, respectively. Manuscript profile -
Open Access Article
4 - The Effect of Different Seed Primings on Some Quantitative and Qualitative Characteristics of Sugar Beet (Beta vulgaris L.)
Adel Pedram Mehdi Tajbakhsh Dariush Fathollah Taleghani Mahdi GhiyasiTo investigate the effect of different seed primings on quantitative and qualitative characteristics of two sugar beet cultivars a factorial experiment based on randomized complete block design (RCBD) with three replications, was carried out in both laboratory and field MoreTo investigate the effect of different seed primings on quantitative and qualitative characteristics of two sugar beet cultivars a factorial experiment based on randomized complete block design (RCBD) with three replications, was carried out in both laboratory and field at the Agricultural and Natural Resources Research Center of West Azarbaijan province in 2015-16. The factors were two cultivars (Ekbatan and 7233) and five kinds of seed primings (seed hardening, priming with nano fertilizer, priming with pigeon manure extract, hydropriming and control). The results of combined analysis of variance showed that there were significant differences between genotypes for root yield and white sugar content. It was also, revealed that primings for all traits, except percent of sugar extraction, alkalinity and white sugar content, were significant. In this study, cultivar 7233, as compared with Ekbatan, produced higher root yield and sugar content. Furthermore, hydropriming produced higher germination percentage (96.50%), speed of germination (9.56 seeds/day), root yield (80.33 t.ha-1), sugars content (23.11%), sugar yield (18.38 t.ha-1) than other seed primings. Based on stepwise regression analysis, four traits, like sugars content, root yield, sugar extraction percentage and molasses sugar, justified 98% of white sugar yield variations. Thus, these four traits were identified as the most effective ones for white sugar yield. It can be, therefore, concluded that hydropriming would be a proper seed priming to improve the quantitative and qualitative characteristics of sugar beet. Manuscript profile -
Open Access Article
5 - Effect of Seed Treatment with Salicylic Acid on Some Seedling Characteristics of Borage
H. Khooshehkar F. ShekariThe effects of seed priming of borage (Borago officinalis)with salicylic acid on improving its seedling traits was investigated under field condition in a complete randomized block design. Treatments consisted of untreated seeds as control, hydropriming and treatme MoreThe effects of seed priming of borage (Borago officinalis)with salicylic acid on improving its seedling traits was investigated under field condition in a complete randomized block design. Treatments consisted of untreated seeds as control, hydropriming and treatment with 500, 1000, 1500 and 2000 μM salicylic acid. Results showed that priming with salicylic acid significantly improved mean emergence time, emergence percent and index, fresh and dry weight of seedling, leaf area, leaf area ratio and specific leaf weight, but it did not affect seedling fresh weight to dry weight ratio. The highest emergence index and specific leaf weight and lowest mean emergence time (emergence rate) and leaf area ratio was found in plants which their seed were primed with 500 μM salicylic acid. It seems that seed priming with salicylic acid increased seedling dry weight more than leaf area. It was also revealed that treating seeds with the highest levels of salicylic acids resulted in negative effects on the traits measured. The lowest emergence index, emergence percent, fresh and dry weight of seedling and specific leaf weight and highest mean emergence time and leaf area ratio oblained from seedlings which primed with 2000 μM salicylic acid and followed by control and hydroprim treatments. It can be concluded that, priming with proper concentration of salicylic acid was more effective than hydropriming. Manuscript profile -
Open Access Article
6 - Morpho- Physiological Changes of Hempseed (Cannabis sativa L.) Traits as Affected by Seed Priming with Folic Acid and Hydrogen Peroxide
Shirin Karbalaye Golizadeh Touraj Mir Mahmoodi Nabi Khalili AqdamTo evaluate the effects of seed priming of hempseed with folic acid and hydrogen peroxide on some morphological and physiological traits a factorial greenhouse experiment based on randomized complete design with four replications was conducted at Islamic Azad University MoreTo evaluate the effects of seed priming of hempseed with folic acid and hydrogen peroxide on some morphological and physiological traits a factorial greenhouse experiment based on randomized complete design with four replications was conducted at Islamic Azad University, Mahabad Branch. Treatments consisted of hydrogen peroxide at five levels (0, 7.5, 15, 22.5, 30 mm/liter) as the first factor and the four leveld of folic acid (5, 10, 20, 27 mm/liter) as the second factor.Seeds, to be primed, were immersed into solution of folic acid for 24 hours and hydrogen peroxide for 6 hours. The characteristics like chlorophyll a, chlorophyll b, total chlorophyll content, relative water content, plant height, root length, allometric coefficient, plant fresh and dry weights, were measured. Result of analysis of variance showed that the effects of folic acid and hydrogen peroxide on all characters were significant, but the interaction between the two treatments were only significant on relative water content and allometric coefficient. In this study, seed priming with 15 mm/liter of hydrogen peroxide and 5mm folic acid resulted in highest chlorophyll a, chlorophyll b, total chlorophyll contents, plant height, root length, fresh and dry weights. Increasing hydrogen peroxide level above 15mm/liter affected traits negatively. Combinated treatments of 15 mm/liter of hydrogen peroxide and 5 and 10 mm of folic acid resulted in highest relative water content and allometric coefficient, respectively. Based on the results obtained it can be concluded that priming seeds with 15 mm/liter of hydrogen peroxide and 5mm folic acid is recommended to produce proper morphological and physiological traits. Manuscript profile -
Open Access Article
7 - Effects of Seed Hydropriming and Nitrogen and Betaine Foliar Application on Yield Quality and Quantity of Adel Cultivar of Chickpea (Cicer arietinum L.) under Rainfed Conditions in Lorestan Province
Rasoul Babaeipour Khosro Azizi Hamid Reza Eisvand Mashala Daneshvar Omid Ali AkbarpourThis study was performed in a factorial experiment based on randomized complete block design with three replications on Adel chickpea cultivar during 2017-2018. Seed priming consisted of two levels (non-priming and hydropriming) and spraying nitrogen and glycine betaine MoreThis study was performed in a factorial experiment based on randomized complete block design with three replications on Adel chickpea cultivar during 2017-2018. Seed priming consisted of two levels (non-priming and hydropriming) and spraying nitrogen and glycine betaine with six levels (no spraying, as control, zero concentration (water spray), 3% urea, 100 mM glycine betaine, 200 mM glycine betaine, and glycine betaine 200 mM + urea 3%). Interaction of priming by foliar application on biological and grain yields was significant at 1%probabilitylevel.The highest biological yield (2668kg.ha-1) and grain yield (1301 kg.ha-1) were obtained with combined priming and consumption of 200 mM glycine + 3% urea and the lowest yield was related to non-priming and non-spraying priming. Priming also improved the harvest index, number of seeds per plant, number of pods per plant, 100-seed weight and number of active nodules. The effect of foliar application of plants by glycine betaine and urea on number of grains per pod and grain protein percentage was significant. The highest values of these traits belonged to foliar application of plants by glycine betaine with concentration of 200 mM + 3% urea. Hydropriming significantly increased grain yield, harvest index, grain weight, and number of seeds per plant. Hydropriming also allowed the plant to initiate flowering and pod forming earlier. According to the results of this study, the use of hydropriming treatment and spraying of nitrogen and glycine betaine respectively would be recommended to improve the quality and quantity of rainfed chickpea in Kuhdasht, Lorestan province. Manuscript profile -
Open Access Article
8 - Effects of Plant Growth Promoting Bacteria and Irrigation Levels on Physiological Traits and Yield of Flax (Linum usitatissimum L.)
Sanaz Rajabi Khamseh Abdolrazagh Danesh-Shahraki Mohammad Rafieiolhossaini Keramatollah Saeedi Mahdi GhobadiniaTo evaluate the effects of plant growth promoting bacteria and irrigation levels on some physiological traits and yield of flax, a split-plot experiment was conducted based on randomized complete block design with three replications at the research farm of Agricultural MoreTo evaluate the effects of plant growth promoting bacteria and irrigation levels on some physiological traits and yield of flax, a split-plot experiment was conducted based on randomized complete block design with three replications at the research farm of Agricultural Faculty of Shahrekord University in 2015. The main factor was three irrigation levels (100 % of full irrigation as control, 75 and 50 % of full irrigation) and the sub-factor was seven levels of plant growth promoting bacteria (no inoculation as control and inoculation with Bacillus SP. strain1, Bacillus SP. strain2, Bacillus amyloliquefaciens, Azotobacter Chroococcum, Pseudomonas putida and Azospirillium lipoferum). The interaction effect of irrigation and bacterial inoculation on relative water content, cell membrane stability, chlorophyll a, b and carotenoid content, chlorophyll a/b ratio, water use efficiency, number of capsules per plant, 1000 grain weight and seed yield were significant but non significant on seed number per capsule. The highest amounts of measured traits in each irrigation level were related to the bacterial treatments. The highest seed yield (with 62% increase) was obtained from Bacillus sp. strain1 in treatment and 100% of full irrigation as compared to that of control. According to the results of main effect of irrigation on number of seeds per capsule, full irrigation treatment resulted in highest number of grain per capsule as compared to the other levels. Among bacterial treatments, B. Amyloliquefaciens had the highest significant number of seeds per capsule, as compared with no inoculation treatment. The effects of treatments of Bacillus SP. strain1, B. amyloliquefaciens and A. Chroococcum treatments were more pronounced as compared to other bacterial treatments traits studied under normal and stress conditions. According to the results of this research, flax seed treatment with plant growth promoting bacteria is recommended flax seed production under water deficit conditions. Manuscript profile -
Open Access Article
9 - Corn Seed Yield and Its Components as Affected by Different Time of Weeding, Seed Osmopriming and Foliar Application of Micronutrient
H. Abbasdokht M. AsgharniaTo study the effect of different times of hand weeding, seed osmopriming and micronutrient foliar application on yield and yield components of corn (Zea mays L.) a factorial experiment based on randomized complete block design with four replications was carried out at t MoreTo study the effect of different times of hand weeding, seed osmopriming and micronutrient foliar application on yield and yield components of corn (Zea mays L.) a factorial experiment based on randomized complete block design with four replications was carried out at the Research Farm of Shahrood University. Treatments factors were weeding with 3 levels (hand weeding 2, 4 and 6 weeks after crop emergence, seed osmopriming with 2 levels (osmopriming and control) and micronutrients application at 2 levels (foliar application with micronutrient and control). Results showed that the different times of weeding had significant effect on yield and yield components and highest seed yield was obtained with weeding at 6 weeks after emergence. Seed osmopriming significantly increased all of the variables under study. Foliar micronutrient applications also increased seed yield, biological yield, harvest index, height of plant, ear weght, ear length, ear diameter and the 100-seeds weight in comparison to control significantly, but it didn’t effect number of seed rows per ear significantly. The interactions of osmopriming and micro nutrient on grain yield, biological yield, harvest index, height of plant, the number of seed in row, 100-seed weight, weight of corn and ear length were also significant. The interactions of different times of weeding and osmopriming significantly affected only ear diameter. The effect of different times of weeding and foliar application of micronutrient on ear diameter was also significant. Seed yield and ear length were affected by triple interactions of treatments. The results of this study showed that osmopriming, foliar application of micronutrient and hand weeding 6 weeks after emergence all had positive effect on improving growth indices and seed yield of corn. Manuscript profile -
Open Access Article
10 - Germination, Growth and Yield of Wheat as Affected by Physical Priming Techniques
B. Mirshekari F. Farahvash S. Baser KoocheBaghTo study the effect ofphysical seed priming techniques on seed germination, growth and yield of a wheat cultivar (Triticum aestivum, cv. Falat), an experiment was conducted. Factors under study were ultrasonic intensity of 3 W.cm-2, laser wave of length of 6328 Å, MoreTo study the effect ofphysical seed priming techniques on seed germination, growth and yield of a wheat cultivar (Triticum aestivum, cv. Falat), an experiment was conducted. Factors under study were ultrasonic intensity of 3 W.cm-2, laser wave of length of 6328 Å, magnetic field with intensity of 0.6 T, gamma and beta radiations both with intensity of 2 mc for 5 and 10 min and a control. Results indicated that effect of laser and magnetic field for 5 min was effective on duration germination as compared to other treatments. Seedling treated by magnetic field for 5 min resulted in greater vigor than ultrasonic and beta radiations. Seed weights, under magnetic field and gamma radiation treatments for 5 and 10 min were heavier (55.6 g) than other treatments. Seeds that treated with magnetic field for 5 min produced 21.5% more yield as compared to the control. Laser (for 5 min) along with gamma and magnetic field (for 5 and 10 min) radiations could produce yield up to 588 g.m-2. Seed yield in control plot was 71 g lower than those treated with laser for 5 min, gamma and magnetic field for 5-10 min radiations. Manuscript profile -
Open Access Article
11 - Investigating Seed Germination Indices and Absorption Rate of Sodium, Chloride, Calcium, and Potassium in Different Parts of Seedlings of Sweet Corn KSC 403 (Zea Mays L var. Saccharata) Under Salinity Stress and Seed Priming
M. Nasrolah alhossini, A. Rahmani S. Khavari KhorasaniTo investigate the effects of different levels of seed priming on germination indices and nutrient absorption at early growth stages of sweet corn (Golden Kernel Hybrid) a factorial experiment based on completely randomized design was conducted with three replications i MoreTo investigate the effects of different levels of seed priming on germination indices and nutrient absorption at early growth stages of sweet corn (Golden Kernel Hybrid) a factorial experiment based on completely randomized design was conducted with three replications in 2011. The experiment consists of 6 levels of primings (seeds without priming, priming with tap water, priming with distilled water, priming with sodium chloride, potassium chloride, and hydrous calcium chloride) and five levels of salinity (zero, 4, 8, 12 and 16 ds/m sodium chloride). The characteristics studied were germination percentage, germination rate, root and shoot length, fresh weight and dry weight of seedling, root to shoot ratio and determination of sodium, chloride, calcium, and potassium concentration in different parts of seedlings (stems, roots and seed). The results indicated that increasing salinity stress levels decreased all parameters measured. Priming seeds with hydrated calcium chloride responded to significantly to salinity stress better than other treatments. Results also showed that increasing concentration of sodium chloride salt, increased absorption rate of sodium but concentration of calcium and potassium were reduced. Because application of hydrous calcium chloride stimulates cell in using calcium under salinity conditions it leads to improved seedling growth parameters. To achieve a more accurate results slicing interaction effect of seed priming×salinity levels was performed. Hydrous calcium chloride treatments improved all traits under study except sodium and potassium concentration. This represents a better performance of seeds germination under salinity stress when seeds primed with hydrous calcium chloride. Manuscript profile -
Open Access Article
12 - Effects of Accelerated Aging and Acid Scarification of Seed Coat with Hydrochloric Acid on Seed Germination Characteristics of Chickpea c.v. Kaka
R. Sadrabadi HaghighiTo evaluate the effects of accelerated aging and seed coat scarification with Hydrochloric acid (HCl) on seed germination characteristics of chickpea (Cicer arietinum) c.v. Kaka, a factorial experiment was conducted in completely randomized design with two factors in la MoreTo evaluate the effects of accelerated aging and seed coat scarification with Hydrochloric acid (HCl) on seed germination characteristics of chickpea (Cicer arietinum) c.v. Kaka, a factorial experiment was conducted in completely randomized design with two factors in laboratory condition. Factors were three levels of accelerated aging for zero, 24 and 48 hours by 45°C and 100% relative humidity and 8 levels of Hydrochloric acid treatments of seeds (dry seed as chickpea), immersion in 0 (distilled water), 0.5, 1, 1.5, 2, 2.5 and 3 normal HCl for half an hours. Results showed that accelerated seed aging and HCl treatments both reduced percent and speed of seed germination, epicotyl and root length. Accelerated seed aging increased the negative effects of HCl treatments. Only hydro-priming improved seed germination characteristics in all accelerated aging treatments. On the basis of the results of this experiment, treatment with HCl isn’t a suitable treatment for chickpea seed priming. Manuscript profile -
Open Access Article
13 - بررسی صفات جوانهزنی بذرهای دو گونه Agropyron desertroum وAgropyron pectiniform با پیشتیمار اسید آسکوربیک، تحت تنش خشکی
هادی کرمی قاسمعلی دیانتی تیلکی امید اسماعیا زاده -
Open Access Article
14 - تأثیر اسموهیدروپرایمینگ بر صفات جوانهزنی و رشد هتروتروفیک گیاهچه ذرت تحت تنش خشکی
احمد افکاری -
Open Access Article
15 - ارزیابی تحمل جو به عنصر مس در مرحله جوانهزنی بذر و رشد اولیه گیاهچه در حضور قارچ تریکودرما
مهدیه مظاهر سعید خماری احمد جوادی مهدی داوری -
Open Access Article
16 - بررسی اثر پرایمینگ بذر بر مولفههای جوانه زنی و رشد رویشی گیاه دارویی ریحان(Ocimum basilicum L.) در تنش شوری
لیلا رضائی محمد هاشم برادران سعید بختیاری -
Open Access Article
17 - اثر پیشتیمار با نانوکلات آهن و پتاسیم بر جوانهزنی و رشد سیاهدانه (Nigella sativa L.) تحت تنش شوری
مهیا عسکری حسن نورافکن لیلا حجتی پرستو نعمتی راد -
Open Access Article
18 - تأثیر جیبرلیک اسید بر جوانهزنی و رشد اولیه گیاهچه ژنوتیپهای مختلف سورگوم تحت تنش شوری
اخلاص امینی علی اشرف مهرابی یاسر علیزاده -
Open Access Article
19 - اثر زمان و غلظت اسموپرایمینگ بر شاخصهای جوانهزنی سه گونه مرتعی از جنس آتریپلکس
معصومه محمدنژاد جلال محمودی محمد علی علیزاده بهرام ناصری -
Open Access Article
20 - اثر نوتری پرایمینگ بذر با سلنیوم بر شاخص های جوانه زنی و فیزیولوژیکی بالنگوی شهری (Lamellia ibrica L.) تحت تنش شوری
سید اسماعیل موسوی مهدی عقیقی شاهوردی -
Open Access Article
21 - ثاثیر پرایمینگ و فرسودگی بر جوانهزنی تودههای بذر برنج با قدرت متفاوت
طیبه سعادت حمیده علیدوست محمد صدقی -
Open Access Article
22 - ارزیابی صفات سبز شدن سه جمعیت گونه آویشن دنایی برگ نیزه ای (Thymus lancifolius Celak) به روش های مختلف پرایمینگ
محمدعلی علیزاده هاجر حیدر نژاد حمید سبحانیان غلام رضا بخشی خانیکی علی اشرف جعفری -
Open Access Article
23 - تاثیر تیمارهای اسموپرایمینگ، هایدروپرایمینگ و تنش شوری بر جوانهزنی بذر و برخی ویژگیهای مورفولوژیک و فیزیولوژیک گل همیشه بهار
بهزاد کاویانی شهرام صداقت حور -
Open Access Article
24 - بهبود رفتار جوانهزنی و ویژگیهای گیاهچه دو ژنوتیپ کینوا (Chenopodium quinoa Willd.) تحت تأثیر اسید سالیسیلیک و تنش شوری
راضیه کرمی فاطمه ابراهیمی حمیدرضا بلوچی محمد جواد بابایی -
Open Access Article
25 - تاثیر پرایمینگ با عناصر غذایی برسبزشدن و میزان عناصر گیاهچه پنبه رقم خرداد در شرایط شور و غیرشور
معصومه صالحی نادیا بشارت -
Open Access Article
26 - ارزیابی روش های مختلف شکستن خواب بذر در علف هرز قدومه (Alyssum homalocarpum)
معصومه اسدی گاکیه علی بابائی قاقلستانی مهوش قزوینه -
Open Access Article
27 - تاثیر پرایمینگ و فرسودگی بر روی صفات فیزیولوژیکی و بیوشیمیایی بذر لوبیا رقم صدری Phaseolus Vulgaris
هانیه سعادت محمد صدقی -
Open Access Article
28 - بررسی تأثیر برخی تیمارها بر ویژگیهای جوانهزنی بذر شبدر ایرانی سه چین (Trifolium resupinatum)
جلال محمودی زینب لعلی نیت بهرام ناصری -
Open Access Article
29 - بررسی اثر تیمارها ی شیمیایی ( جیبرلیک، اسکوربیک و سالیسیلیک اسید) بر ویژگی های جوانه زنی بذر گونه های Lolium rigidum Gaudin. ،Lolium prenne L.
رقیه حبیب زاده جلال محمودی بهرام ناصری -
Open Access Article
30 - Effect of different concentrations of KNO3 on physiological and biochemical properties of maize (Zea mays L.) under Salinity Stress
Homa Zarei محمد صدقی Salim Farzaneh Haniyeh SaadatIn order to investigate the effect of different concentrations of KNO3 on physiological and biochemical properties of maize (Zea mays L.) under salinity stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Arda MoreIn order to investigate the effect of different concentrations of KNO3 on physiological and biochemical properties of maize (Zea mays L.) under salinity stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili in 2021. Treatments included three salinity levels (0, 100 and 200 Mm) and three KNO3 levels (0, 1.5 and 3%). The results showed that the highest germination percentage (GP), germination rate (GR), germination uniformity (GU), radicle and plumule length (RL and PL) and radicle fresh and dry weight (RFW and RDW) was related to priming with KNO3 3% and without salinity. Mean of germination time (MGT) compared to the control showed a reduction about 53%. The activity of catalase, peroxidase and superoxide dismutase enzymes in priming with KNO3 3% and 200 mM salinity compared to the control showed an increase about 56, 68 and 67%, respectively. Salinity decreased the activity of amylase, but priming with KNO3 increased the activity of this enzyme. The total seed protein content in KNO3 3% pretreatment and without salinity was increased about 63%. In general, priming with KNO3 3% solution can be considered as the best treatment to improve the physiological and biochemical properties of corn under salinity stress. Manuscript profile -
Open Access Article
31 - The effect of pretreatment with different concentrations of urea on physiological and biochemical properties of maize (Zea mays L.) under Salinity Stress
هما زارعی محمد صدقی سلیم فرزانه Haniyeh SaadatIn order to investigate Effect of different concentrations of urea on physiological and biochemical properties of maize (Zea mays L.) under Salinity Stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili MoreIn order to investigate Effect of different concentrations of urea on physiological and biochemical properties of maize (Zea mays L.) under Salinity Stress a factorial experiment was conducted based on completely randomized design at the University of Mohaghegh Ardabili in 2021. The investigated factors were different levels of salinity (zero, 100 and 200 mM) and different levels of urea solution (zero, 1.5 and 3%). The results showed that salinity stress decreased Germination Percentage (GP), Germination Rate (GR), Germination uniformity (GU), Radicle and Pedicel Length (RL and PL) and Radicle Fresh and Dry Weight (RFW and RDW), But priming with urea improved these traits. The highest Medium Germination Time (MGT) was related at 200 mM salinity and control (distilled water). The activity of catalase and peroxidase enzymes increased with salinity intensification and the highest amount was observed at 200 mM salinity. Priming with 3% urea solution improved these enzymes. The superoxide dismutase enzyme activity in priming with 3% urea and 200 mM salinity compared to the control showed an increase about 61%. Amylase and protein in pretreatment with urea 3% and without salinity compared to the control showed an increase respectively about 73% and 70%. According to the observed results, seeds primed with 3% urea solution had the greatest effect on salinity stress in maize. According to the observed results, seeds primed with 3% urea solution had the greatest effect on salinity stress in maize. Manuscript profile -
Open Access Article
32 - Evaluation of the effect of priming on germination and growth characteristics of sugar beet cultivars (Beta Vulgaris L) under salinity conditions
Seyed GholamReza Salehi حشمت امیدی Mehdi Hasani Mohammad Hosein Bijeh KeshavarziThis study aims to investigate the effect of priming treatments (control without priming, hydropriming, priming with 0.25% potassium nitrate and priming with 0.5% potassium nitrate) on the germination characteristics of sugar beet cultivars and growth characteristics un MoreThis study aims to investigate the effect of priming treatments (control without priming, hydropriming, priming with 0.25% potassium nitrate and priming with 0.5% potassium nitrate) on the germination characteristics of sugar beet cultivars and growth characteristics under five levels of salinity (0, 4, 8, 12, and 16 dS/m) on germination and seedling growth in four replicates in a petri dish in laboratory conditions as a factorial experiment based on a completely randomized design. The results showed that the effect of seed priming and salinity stress on the average germination time, germination speed coefficient, germination variance, germination uniformity, root length, stem length, stem and root dry weight, water content relatively, chlorophyll a, chlorophyll b and carotenoids were significant. The results showed that in all three genotypes, the number of germinated seeds decreased with the increase in salinity level, and in the control levels and the use of water as a priming factor, this decrease was moderated. With the increase of salt concentration up to 12 ds level, the relative water content increased sigmoidally and showed a relatively stable trend at two levels of 12 and 16 ds. In most of the investigated traits, Shokofa variety has shown less reaction than other genotypes. In the investigation of the reaction process of genotypes to the speed, variance and homogeneity of germination in prime and salinity levels, it has shown a decrease with increasing salinity concentration. Manuscript profile -
Open Access Article
33 - اثر پیشتیمار با قارچکش و اسید هیومیک و اندازه بذر بر شاخصهای جوانهزنی سه رقم گندم
فاطمه نوری هدیه مصنعی -
Open Access Article
34 - تاثیر نوع محلول پیش تیمار، زمان خیساندن و شوری بر شاخصهای مختلف جوانهزنی گندم
رقیه شاکری عموقین احمد توبه شهزاد جماعتی ثمرین -
Open Access Article
35 - ارزیابی تاثیر پرایمینگ بذر بر خصوصیات سرعت جوانه زنی واریته های جدید پنبه در سطوح مختلف تنش خشکی
اندیشه ترابی دشتی الیاس سلطانی فرزاد پاک نژاد -
Open Access Article
36 - تاثیر بیوپرایمینگ بر شاخصهای جوانهزنی دو نوع چمن
مجتبی جعفری نیا محمدرضا هادی -
Open Access Article
37 - مطالعه تأثیر پرایمینگ بذور بر روی شاخصهای مختلف جوانه زنی گندم در شرایط تنش شوری
رقیه شاکری عموقین احمد توبه شهزاد جماعتی ثمرین -
Open Access Article
38 - اثر پیشتیمار بذر با سالیسیلیک اسید بر جوانهزنی ماریتیغال تحت تنش شوری
زهرا محمودی راد حسن نورافکن -
Open Access Article
39 - ارزیابی تحمل جو به عنصر مس در مرحله جوانهزنی بذر و رشد اولیه گیاهچه در حضور قارچ تریکودرما
مهدیه مظاهر سعید خماری احمد جوادی مهدی داوری -
Open Access Article
40 - اثر پیش تیمار بذر با سالیسیلیک اسید بر شاخصهای جوانهزنی گیاهچههای کلزا (Brassica napus) در شرایط تنش شوری
فرشاد سرخی مجتبی فاتح -
Open Access Article
41 - تاثیر نیترات پتاسیم بر شاخصهای جوانهزنی ریحان سبز (Ocimum basilicum L) در شرایط تنش خشکی
علی منصوری حشمت امیدی -
Open Access Article
42 - ارزیابی اثر رنگ و اندازه بذر روی خصوصیات جوانه زنی تاج الملوک (Aquilegia chrysantha ) تحت تیمارهای مختلف هیدروپرایمینگ.
فهیمه نبی احمد اصغرزاده ابراهیم گنجی -
Open Access Article
43 - بررسی اثر پرایمینگ بذر بر مؤلفههای جوانهزنی و رشد رویشی ریحان (Ocimum basilicum L.) در تنش خشکی
محمدهاشم برادران لیلا رضائی سعید بختیاری -
Open Access Article
44 - تأثیر باکتریهای محرک رشد بر شاخصهای جوانهزنی و رشد گیاهچه کنجد (Sesamum indicum L.) در شرایط تنش شوری
حجت عطایی سماق مهدی عقیقی شاهوردی میلاد همتی زهرا مرادیان فرشته آزاد بخت -
Open Access Article
45 - بررسی اثر مدت زمان و دمای پیشتیمار رطوبتی بر شاخصهای جوانهزنی و بنیه گیاهچه شاهی (sativum Lepidium) در بسترهای مختلف
سیدعلی نورحسینی نرگس خاتون جوکار -
Open Access Article
46 - بررسی تاثیر پرایمینگ بذر در شرایط تنش شوری بر مؤلفهها جوانه زنی و رشد رویشی گیاهچه رازیانه(Foeniculum vulgar)
سوده نظریان سعید بختیاری رضا مجیدزاده هروی -
Open Access Article
47 - تأثیر پرایمینگ بذر بر شاخصهای جوانهزنی گشنیز (Coriandrum sativum L.) تحت تنش شوری
علی بابایی قاقلستانی معصومه اسدی گاکیه فاطمه پور پیله ور نسرین حاتمی قره قوینی -
Open Access Article
48 - تاثیر هیدروپرایمینگ در کاهش اثرات تنش شوری بر جوانه زنی و محتوای پرولین بذر دو گونه دارویی سرخارگل (Echinacea angustifolia) و کاسنی (Chicorium intybus)
آرزو پراور حشمت امیدی نسرین سادات عیسی نژاد مجید امیرزاده -
Open Access Article
49 - پرایمینگ بذر بر مولفه های جوانهزنی گیاه مرزه (Satureja hortensis) تحت شرایط تنش خشکی و شوری
بیژن سعادتیان گودرز احمدوند فاطمه سلیمانی -
Open Access Article
50 - تأثیر باکتریهای محرک رشد و قارچ تریکودرما بر جوانهزنی بالنگو (Lallemantia royleana L)تحت تنش شوری
زهرا مرادیان فرشته آزادبخت حشمت امیدی رحیم بازمکانی -
Open Access Article
51 - اثر پیشتیمار با تنظیم کنندههای رشد بر شاخصهای جوانهزنی برنج در شرایط تنش شوری
بتول زارعی زینب رستمی آرش فاضلی -
Open Access Article
52 - تأثیر پیشتیمار بذر با سالیسیلیک اسید بر ویژگیهای گیاهچه و قابلیت جوانهزنی بذرهای پیر شده شنبلیله (Trigonellafoenum-graecum)
سینا سیاوشمقدم امیر رحیمی سیدعلی نورحسینی امید محمدی ویدا قاسمی -
Open Access Article
53 - تاثیر تیمار سرمایی و شیمیایی بر شکست خواب بذر پنیرباد (Withania somnifera)
ابراهیم گنجی مقدم ایسن قهرمانی مریم تاتاری سوسن خسروبار -
Open Access Article
54 - اثر پیش تیمار بذر با آب و اشعه فرابنفش بر برخی از خصوصیات رشدی و فیزیولوژیکی گیاه نخود فرنگی (Pisum sativum L.)
بهنوش رسایی سعید جلالی هنرمند علی رسایی مجید عبدلی -
Open Access Article
55 - مقایسه اثر پرایمینگ در بهبود ویژگیهای جوانهزنی بذر کدو تخم کاغذی تحت شرایط تنش خشکی
یگانه سادات کریمزاده حسینیان امیر بهزاد بذرگر رضا صدرآبادی حقیقی سعید بختیاری -
Open Access Article
56 - پاسخ جوانه زنی بذرهای کلزا به تغییرات قدرت بذر و هیدرو-پرایمینگ
قاسم نجفی سعید خماری احمد جوادی -
Open Access Article
57 - اثر بستر جوانهزنی و مدت زمان هیدروپرایمینگ بر جوانهزنی و بنیه گیاهچه ریحان سبز و بنفش (Ocimum basilicum L.)
سیدعلی نورحسینی نرگس خاتون جوکار محمدرضا داداشی -
Open Access Article
58 - اثر پیشتیمار بذر و سطوح شوری بر ویژگیهای جوانهزنی دو ژنوتیپ کنجد (Sesamum indicum L.)
معصومه علیزاده حمیدرضا بلوچی علیرضا یدوی -
Open Access Article
59 - اثر پرایمینگ زیستی و هورمونی بر شاخصهای جوانهزنی بذرهای مریمگلیکبیر (Salvia sclarea L.)
حسن نورافکن فرانک ناصری -
Open Access Article
60 - تأثیر کاربرد اسید سالیسلیک بر جوانهزنی گندم بهاره (Triticum aestivum L.) تحت تنش خشکی
اصغر گنجه علی عبادی سدابه جهانبخش قاسم پرمون -
Open Access Article
61 - بررسی تاثیر پرایمینگ بذر با غلظتهای مختلف جاسمونیک اسید بر جوانهزنی و رشد اولیه گیاهچه سیاهدانه (Nigella sativa L.) در شرایط تنش شوری
بتول زارعی زهرا تقیپور آرش فاضلی -
Open Access Article
62 - بهبود شاخصهای جوانهزنی بذور پرایم شده چاودار کوهی (Secale montanum) تحت شرایط کاهش تدریجی رطوبت و پیری تسریع شده
امید انصاری فرزاد شریف زاده -
Open Access Article
63 - بررسی اثر اسموپرایمینگ بر صفات جوانهزنی بذر برنج رقم ندا
رضا رضایی سوختآبندانی مهدی رمضانی -
Open Access Article
64 - تأثیر نانوذرات نقره بر ویژگیهای جوانهزنی بذر گونه (Taverniera cuneifolia) تحت تنش شوری
مهدی خیریان پور قاسم دیانتی تیلکی فاطمه الوانی -
Open Access Article
65 - The effect of chemical and biological priming on seed yield and yield components of fava bean plants (Vicia faba L.)
محمدحسین انصاری معرفت مصطفوی راد رضا ذرشین زنوشIn order to evaluate the effect of chemical priming and inoculation with strains of Pseudomonas bacteria on fava bean yield and yield components, a randomized block design field experiment with three replication was conducted in research station of Agricultural and Natu MoreIn order to evaluate the effect of chemical priming and inoculation with strains of Pseudomonas bacteria on fava bean yield and yield components, a randomized block design field experiment with three replication was conducted in research station of Agricultural and Natural Resources Research Center of Guilan province, Rasht during 2014-2015. Experimental factors included different strains of Pseudomonas flouresens bacteria (41, 169, 187 and control) and different levels of chemical priming (urea solution and Zinc sulfate solution as well as tap water). The results showed that the interaction effect of chemical and biological priming was significant for pods per plant, number of seeds per plant, green pod yield and yield and protein of grains. In this experiment the highest seed yield and green pod yield were obtained under no inoculation and priming with urea solution. Also, the effect of priming and bacteria inoculation on grain protein content was significant. However, bacteria inoculation showed significant effect only on seed phosphorous content so that, the greatest seed phosphorous contents was obtained under inoculation with strain 187 of bacteria. In general, the results of this research showed that low cast priming technique with urea solution enhanced seed yield of fava beans under field condition. Thus, urea priming technique can be recommended for seed yield improvement in fava beans grown in Guilan paddy fields. Manuscript profile -
Open Access Article
66 - اثر پرایمینگ بر رشد و فعالیت آنزیمهای آنتیاکسیدانی ذرت فوق شیرین رقم Basin تحت تنش شوری
سمیه حسن زاده کهل سفلی -
Open Access Article
67 - Priming effect on germination and seedling growth of canola in comparison to nanosilver treatment under salinity stress
معصومه Salehi فاطمه Tamaskani مریم Ehsani مریم ArefiSeed priming is a technique that by means of seeds before sowing and confronting to condition of ecological environment in terms of physiologicaly and biochemically gain fitness for germination. In fact it is a type of presowing treatment. The aim of this study was comp MoreSeed priming is a technique that by means of seeds before sowing and confronting to condition of ecological environment in terms of physiologicaly and biochemically gain fitness for germination. In fact it is a type of presowing treatment. The aim of this study was comparison the effect of several methods of priming on germination and seedling growth of canola under salinity stress in comparative to Nanocide. For this purpose an experiment was conducted in a factorial design with four levels of salinity include 10, 12, 18, 24 dS/m Nacl and one control with three replications. The germination behavior of canola RGS cultivar treated with Nanocide in concentration of 0,20,40 ppm and ascorbate priming in three levels 100,200,400 ppm and hydropriming with distilled water was evaluated. Treatment with nanocide resulted in growth improvement and successful seed establishment, although percentage and rate of seed germination reduced. Priming treatments had a positive effect on germination rate and percentage but had no effect on seedling growth. Seeds treatment that caused increase of seedling growth had more importance under salt stress. With attention to results the best treatment in saline and non saline environment was nanocide treatment in 200ppm level. In fact nanocide in this concentration improved establishment of canola seeds in saline land. Manuscript profile -
Open Access Article
68 - بررسی اثر هیدروپرایمینگ بر جوانهزنی و محتوای پرولین بذر تربچه (Raphanus sativus L.) در شرایط تنش شوری
محسن فرزانه مژگان قنبری علیرضا افتخاریان جهرمی -
Open Access Article
69 - اثر پرایمینگ شیمیایی و زیستی بر عملکرد و اجزای عملکرد گیاه باقلا (Vicia faba L.)
رضا درشین زنوش محمد حسین انصاری معرفت مصطفوی راد -
Open Access Article
70 - Investigating the improvement of germination indices of Cynara scolymus L. seed by bacterial strains of Pseudomonas sp. R27N7 and Staphylococcus sp. R38N2 along with extracted humic and fulvic acids from biochar of Oriental plane tree
Mina Aqel Khajedad Ebrahim Shirmohammadi Ahmad Gholamalizadeh Ahangar Fatemeh KhosraviThe aim of this study was to investigate the effect of artichoke (Cynara scolymus L.) seeds priming with plant growth-promoting rhizobacteria and extracted humic substances from biochar of Oriental plane (Platanus orientalis) tree on their seeds germination and seedling MoreThe aim of this study was to investigate the effect of artichoke (Cynara scolymus L.) seeds priming with plant growth-promoting rhizobacteria and extracted humic substances from biochar of Oriental plane (Platanus orientalis) tree on their seeds germination and seedling growth indices. For this purpose, in-vitro culture was performed in the form of factorial in a completely randomized design with four replications, totally in 36 experimental units, in the laboratory of soil science department, University of Zabul, in spring 2021. The first factor (humic substances) was in three levels including: seed priming with distilled water (control), fulvic acid and humic acid. The second factor (plant growth-promoting rhizobacteria) was in three levels including: seed priming with physiological serum (control), strains of Pseudomonas sp. R27N7 and Staphylococcus sp. R38N2. The results showed that R27N7 and R38N2 bacterial strains reduced the mean germination time by 10.93% and 11.23%, respectively, compared to the control. The effect of fulvic acid treatment on variation of measured indices was not significant compared to control. But, humic acid treatment increased indices of Seedling height by 90.33%, seedling dry weight by 90.70%, germination percentage by 61.32%, germination rate by 62.50%, mean daily germination by 60.19% and vigor index I and II by 2.76 times compared to the control. According to the results of this study, artichoke seeds priming with both of the plant growth promoting rhizobacteria strains can reduce mean germination time of seed. Also, seeds priming with humic acid can improve dry weight of seedling and most of seed germination indices. It seems that the improvement of these indices is mostly influenced by the plant growth hormone-like properties of humic acid and also plant growth promoting properties of both bacterial strains, especially their ability to produce of indole-3-acetic acid. Manuscript profile -
Open Access Article
71 - بررسی صفات جوانهزنی بذرهای دو گونه Agropyron desertroum وAgropyron pectiniform با پیشتیمار اسید آسکوربیک، تحت تنش خشکی
هادی کرمی قاسمعلی دیانتی تیلکی امید اسماعیا زاده -
Open Access Article
72 - تأثیر اسموهیدروپرایمینگ بر صفات جوانهزنی و رشد هتروتروفیک گیاهچه ذرت تحت تنش خشکی
احمد افکاری -
Open Access Article
73 - بررسی اثر پرایمینگ بذر بر مولفههای جوانه زنی و رشد رویشی گیاه دارویی ریحان(Ocimum basilicum L.) در تنش شوری
لیلا رضائی محمد هاشم برادران سعید بختیاری -
Open Access Article
74 - اثر پیشتیمار با نانوکلات آهن و پتاسیم بر جوانهزنی و رشد سیاهدانه (Nigella sativa L.) تحت تنش شوری
مهیا عسکری حسن نورافکن لیلا حجتی پرستو نعمتی راد -
Open Access Article
75 - تأثیر جیبرلیک اسید بر جوانهزنی و رشد اولیه گیاهچه ژنوتیپهای مختلف سورگوم تحت تنش شوری
اخلاص امینی علی اشرف مهرابی یاسر علیزاده -
Open Access Article
76 - اثر زمان و غلظت اسموپرایمینگ بر شاخصهای جوانهزنی سه گونه مرتعی از جنس آتریپلکس
معصومه محمدنژاد جلال محمودی محمد علی علیزاده بهرام ناصری -
Open Access Article
77 - اثر نوتری پرایمینگ بذر با سلنیوم بر شاخص های جوانه زنی و فیزیولوژیکی بالنگوی شهری (Lamellia ibrica L.) تحت تنش شوری
سید اسماعیل موسوی مهدی عقیقی شاهوردی -
Open Access Article
78 - ثاثیر پرایمینگ و فرسودگی بر جوانهزنی تودههای بذر برنج با قدرت متفاوت
طیبه سعادت حمیده علیدوست محمد صدقی -
Open Access Article
79 - ارزیابی صفات سبز شدن سه جمعیت گونه آویشن دنایی برگ نیزه ای (Thymus lancifolius Celak) به روش های مختلف پرایمینگ
محمدعلی علیزاده هاجر حیدر نژاد حمید سبحانیان غلام رضا بخشی خانیکی علی اشرف جعفری -
Open Access Article
80 - تاثیر تیمارهای اسموپرایمینگ، هایدروپرایمینگ و تنش شوری بر جوانهزنی بذر و برخی ویژگیهای مورفولوژیک و فیزیولوژیک گل همیشه بهار
بهزاد کاویانی شهرام صداقت حور -
Open Access Article
81 - بهبود رفتار جوانهزنی و ویژگیهای گیاهچه دو ژنوتیپ کینوا (Chenopodium quinoa Willd.) تحت تأثیر اسید سالیسیلیک و تنش شوری
راضیه کرمی فاطمه ابراهیمی حمیدرضا بلوچی محمد جواد بابایی -
Open Access Article
82 - تاثیر پرایمینگ با عناصر غذایی برسبزشدن و میزان عناصر گیاهچه پنبه رقم خرداد در شرایط شور و غیرشور
معصومه صالحی نادیا بشارت -
Open Access Article
83 - ارزیابی روش های مختلف شکستن خواب بذر در علف هرز قدومه (Alyssum homalocarpum)
معصومه اسدی گاکیه علی بابائی قاقلستانی مهوش قزوینه -
Open Access Article
84 - تاثیر پرایمینگ و فرسودگی بر روی صفات فیزیولوژیکی و بیوشیمیایی بذر لوبیا رقم صدری Phaseolus Vulgaris
هانیه سعادت محمد صدقی -
Open Access Article
85 - بررسی تأثیر برخی تیمارها بر ویژگیهای جوانهزنی بذر شبدر ایرانی سه چین (Trifolium resupinatum)
جلال محمودی زینب لعلی نیت بهرام ناصری -
Open Access Article
86 - بررسی اثر تیمارها ی شیمیایی ( جیبرلیک، اسکوربیک و سالیسیلیک اسید) بر ویژگی های جوانه زنی بذر گونه های Lolium rigidum Gaudin. ،Lolium prenne L.
رقیه حبیب زاده جلال محمودی بهرام ناصری -
Open Access Article
87 - اثر پیشتیمار با قارچکش و اسید هیومیک و اندازه بذر بر شاخصهای جوانهزنی سه رقم گندم
فاطمه نوری هدیه مصنعی -
Open Access Article
88 - تاثیر نوع محلول پیش تیمار، زمان خیساندن و شوری بر شاخصهای مختلف جوانهزنی گندم
رقیه شاکری عموقین احمد توبه شهزاد جماعتی ثمرین -
Open Access Article
89 - ارزیابی تاثیر پرایمینگ بذر بر خصوصیات سرعت جوانه زنی واریته های جدید پنبه در سطوح مختلف تنش خشکی
اندیشه ترابی دشتی الیاس سلطانی فرزاد پاک نژاد -
Open Access Article
90 - تاثیر بیوپرایمینگ بر شاخصهای جوانهزنی دو نوع چمن
مجتبی جعفری نیا محمدرضا هادی -
Open Access Article
91 - مطالعه تأثیر پرایمینگ بذور بر روی شاخصهای مختلف جوانه زنی گندم در شرایط تنش شوری
رقیه شاکری عموقین احمد توبه شهزاد جماعتی ثمرین -
Open Access Article
92 - اثر پیشتیمار بذر با سالیسیلیک اسید بر جوانهزنی ماریتیغال تحت تنش شوری
زهرا محمودی راد حسن نورافکن -
Open Access Article
93 - ارزیابی تحمل جو به عنصر مس در مرحله جوانهزنی بذر و رشد اولیه گیاهچه در حضور قارچ تریکودرما
مهدیه مظاهر سعید خماری احمد جوادی مهدی داوری -
Open Access Article
94 - اثر پیش تیمار بذر با سالیسیلیک اسید بر شاخصهای جوانهزنی گیاهچههای کلزا (Brassica napus) در شرایط تنش شوری
فرشاد سرخی مجتبی فاتح -
Open Access Article
95 - تاثیر نیترات پتاسیم بر شاخصهای جوانهزنی ریحان سبز (Ocimum basilicum L) در شرایط تنش خشکی
علی منصوری حشمت امیدی -
Open Access Article
96 - ارزیابی اثر رنگ و اندازه بذر روی خصوصیات جوانه زنی تاج الملوک (Aquilegia chrysantha ) تحت تیمارهای مختلف هیدروپرایمینگ.
فهیمه نبی احمد اصغرزاده ابراهیم گنجی -
Open Access Article
97 - بررسی اثر پرایمینگ بذر بر مؤلفههای جوانهزنی و رشد رویشی ریحان (Ocimum basilicum L.) در تنش خشکی
محمدهاشم برادران لیلا رضائی سعید بختیاری -
Open Access Article
98 - تأثیر باکتریهای محرک رشد بر شاخصهای جوانهزنی و رشد گیاهچه کنجد (Sesamum indicum L.) در شرایط تنش شوری
حجت عطایی سماق مهدی عقیقی شاهوردی میلاد همتی زهرا مرادیان فرشته آزاد بخت -
Open Access Article
99 - بررسی اثر مدت زمان و دمای پیشتیمار رطوبتی بر شاخصهای جوانهزنی و بنیه گیاهچه شاهی (sativum Lepidium) در بسترهای مختلف
سیدعلی نورحسینی نرگس خاتون جوکار -
Open Access Article
100 - بررسی تاثیر پرایمینگ بذر در شرایط تنش شوری بر مؤلفهها جوانه زنی و رشد رویشی گیاهچه رازیانه(Foeniculum vulgar)
سوده نظریان سعید بختیاری رضا مجیدزاده هروی -
Open Access Article
101 - تأثیر پرایمینگ بذر بر شاخصهای جوانهزنی گشنیز (Coriandrum sativum L.) تحت تنش شوری
علی بابایی قاقلستانی معصومه اسدی گاکیه فاطمه پور پیله ور نسرین حاتمی قره قوینی -
Open Access Article
102 - تاثیر هیدروپرایمینگ در کاهش اثرات تنش شوری بر جوانه زنی و محتوای پرولین بذر دو گونه دارویی سرخارگل (Echinacea angustifolia) و کاسنی (Chicorium intybus)
آرزو پراور حشمت امیدی نسرین سادات عیسی نژاد مجید امیرزاده -
Open Access Article
103 - پرایمینگ بذر بر مولفه های جوانهزنی گیاه مرزه (Satureja hortensis) تحت شرایط تنش خشکی و شوری
بیژن سعادتیان گودرز احمدوند فاطمه سلیمانی -
Open Access Article
104 - تأثیر باکتریهای محرک رشد و قارچ تریکودرما بر جوانهزنی بالنگو (Lallemantia royleana L)تحت تنش شوری
زهرا مرادیان فرشته آزادبخت حشمت امیدی رحیم بازمکانی -
Open Access Article
105 - اثر پیشتیمار با تنظیم کنندههای رشد بر شاخصهای جوانهزنی برنج در شرایط تنش شوری
بتول زارعی زینب رستمی آرش فاضلی -
Open Access Article
106 - تأثیر پیشتیمار بذر با سالیسیلیک اسید بر ویژگیهای گیاهچه و قابلیت جوانهزنی بذرهای پیر شده شنبلیله (Trigonellafoenum-graecum)
سینا سیاوشمقدم امیر رحیمی سیدعلی نورحسینی امید محمدی ویدا قاسمی -
Open Access Article
107 - تاثیر تیمار سرمایی و شیمیایی بر شکست خواب بذر پنیرباد (Withania somnifera)
ابراهیم گنجی مقدم ایسن قهرمانی مریم تاتاری سوسن خسروبار -
Open Access Article
108 - اثر پیش تیمار بذر با آب و اشعه فرابنفش بر برخی از خصوصیات رشدی و فیزیولوژیکی گیاه نخود فرنگی (Pisum sativum L.)
بهنوش رسایی سعید جلالی هنرمند علی رسایی مجید عبدلی -
Open Access Article
109 - مقایسه اثر پرایمینگ در بهبود ویژگیهای جوانهزنی بذر کدو تخم کاغذی تحت شرایط تنش خشکی
یگانه سادات کریمزاده حسینیان امیر بهزاد بذرگر رضا صدرآبادی حقیقی سعید بختیاری -
Open Access Article
110 - پاسخ جوانه زنی بذرهای کلزا به تغییرات قدرت بذر و هیدرو-پرایمینگ
قاسم نجفی سعید خماری احمد جوادی -
Open Access Article
111 - اثر بستر جوانهزنی و مدت زمان هیدروپرایمینگ بر جوانهزنی و بنیه گیاهچه ریحان سبز و بنفش (Ocimum basilicum L.)
سیدعلی نورحسینی نرگس خاتون جوکار محمدرضا داداشی -
Open Access Article
112 - اثر پیشتیمار بذر و سطوح شوری بر ویژگیهای جوانهزنی دو ژنوتیپ کنجد (Sesamum indicum L.)
معصومه علیزاده حمیدرضا بلوچی علیرضا یدوی -
Open Access Article
113 - اثر پرایمینگ زیستی و هورمونی بر شاخصهای جوانهزنی بذرهای مریمگلیکبیر (Salvia sclarea L.)
حسن نورافکن فرانک ناصری -
Open Access Article
114 - تأثیر کاربرد اسید سالیسلیک بر جوانهزنی گندم بهاره (Triticum aestivum L.) تحت تنش خشکی
اصغر گنجه علی عبادی سدابه جهانبخش قاسم پرمون -
Open Access Article
115 - بررسی تاثیر پرایمینگ بذر با غلظتهای مختلف جاسمونیک اسید بر جوانهزنی و رشد اولیه گیاهچه سیاهدانه (Nigella sativa L.) در شرایط تنش شوری
بتول زارعی زهرا تقیپور آرش فاضلی -
Open Access Article
116 - بهبود شاخصهای جوانهزنی بذور پرایم شده چاودار کوهی (Secale montanum) تحت شرایط کاهش تدریجی رطوبت و پیری تسریع شده
امید انصاری فرزاد شریف زاده -
Open Access Article
117 - بررسی اثر اسموپرایمینگ بر صفات جوانهزنی بذر برنج رقم ندا
رضا رضایی سوختآبندانی مهدی رمضانی -
Open Access Article
118 - تأثیر نانوذرات نقره بر ویژگیهای جوانهزنی بذر گونه (Taverniera cuneifolia) تحت تنش شوری
مهدی خیریان پور قاسم دیانتی تیلکی فاطمه الوانی -
Open Access Article
119 - بهبود جوانه زنی و رشد گیاه دارویی گلپر ایرانی (Heracleum persicum Desf) تحت تأثیر آماده سازی اسمزی بذر
فاطمه چراغی سهراب محمودی مجید جامی الاحمدی سهیل پارسامقدمه و هدف: جوانه‏زنی و استقرار گیاهان دارویی به علت قوه نامیه کمی ‏که بذور این گیاهان دارند عموماً با مشکل مواجه است. پرایمینگ بذر از جمله روش‏هایی است که منجر به افزایش قابلیت جوانه‏زنی در طیف وسیعی از گیاهان می‏شود. هدف کلی تحقیق حاضر تعیین Moreمقدمه و هدف: جوانه‏زنی و استقرار گیاهان دارویی به علت قوه نامیه کمی ‏که بذور این گیاهان دارند عموماً با مشکل مواجه است. پرایمینگ بذر از جمله روش‏هایی است که منجر به افزایش قابلیت جوانه‏زنی در طیف وسیعی از گیاهان می‏شود. هدف کلی تحقیق حاضر تعیین موثرترین ماده پرایمینگ، غلظت و مدت زمان پرایمینگ بر جوانه‏زنی و رشد گیاهچه گلپر بود.روش تحقیق: آزمایشی به صورت فاکتوریل بر پایه طرح بلوک‏های کامل تصادفی در آزمایشگاه تحقیقاتی دانشکده کشاورزی، دانشگاه بیرجند به اجرا درآمد. فاکتورهای آزمایش شامل نوع ماده پرایمینگ (KNO3,CaCl2 و پلی اتیلن گلایکول)، سطوح پتانسیل اسمزی (5/0-، 1- و 5/1- مگاپاسکال) و مدت زمان تیمار (12 و 24 ساعت) بودند.نتایج و بحث: نتایج نشان داد که نوع ماده پرایمینگ بر تمامی‏شاخص‏های اندازه گیری شده اثر معنی دار دارد. سطح پتانسیل اسمزی بر سرعت جوانه‏زنی تأثیر معنی داری داشته است. اثر مدت زمان پرایمینگ بر صفات سرعت جوانه‏زنی و میانگین مدت جوانه‏زنی معنی دار بود. در بین تیمارها در صفات درصد، سرعت و میانگین مدت جوانه‏زنی و شاخص بنیه گیاهچه، تیمار CaCl2 در 5/0- مگاپاسکال به مدت 24 ساعت بهترین درصد جوانه‏زنی، تیمار پلی اتیلن گلایکول 1- مگاپاسکال به مدت 24 ساعت بهترین سرعت جوانه‏زنی، تیمار KNO3 در 1- مگاپاسکال به مدت 24 ساعت کمترین میانگین مدت جوانه‏زنی و تیمار پلی اتیلن گلایکول به مدت 12 ساعت و 5/1- مگاپاسکال بهترین شاخص بنیه گیاهچه را نشان دادند. بنابراین می‏توان نتیجه گرفت با اعمال تیمارهای مناسب پرایمینگ می‏توان باعث بهبود در جوانه‏زنی گیاه دارویی گلپر شد.توصیه کاربردی/ صنعتی: نتایج آزمایش نشان داد پرایمینگ موجب افزایش خصوصیات جوانه زنی در گیاه گلپر می‏شود. با توجه به این­که از کومارین موجود در ریشه این گیاه در صنایع مختلف استفاده می‏شود و از سوی دیگر بذر این گیاه جوانه زنی ضعیفی دارد؛ می‏توان با پرایمینگ آن جوانه زنی و استقرار این گیاه را بهبود بخشید و موجب افزایش در تولید آن شد. Manuscript profile -
Open Access Article
120 - بررسی اثر شدت و مدت زمان میدان مغناطیسی روی جوانهزنی پریوش Catharanthus roseus cv. ‘Acillata’
فاطمه زارع دوست داود هاشم آبادی مریم جدید سلیماندارابیمیدان مغناطیسی موجب بهبود پارامترهای جوانه­ زنی می­شود. جوانه ­زنی بذرهای پریوش در شرایط شور کاهش می­ یابد. این آزمایش جهت بررسی اثر شدت و مدت زمان میدان مغناطیسی بر جوانهزنی بذرهای پریوش در شرایط شور (19 میلی زیمنس بر سانتی­متر) انجام شد. این مطالع Moreمیدان مغناطیسی موجب بهبود پارامترهای جوانه­ زنی می­شود. جوانه ­زنی بذرهای پریوش در شرایط شور کاهش می­ یابد. این آزمایش جهت بررسی اثر شدت و مدت زمان میدان مغناطیسی بر جوانهزنی بذرهای پریوش در شرایط شور (19 میلی زیمنس بر سانتی­متر) انجام شد. این مطالعه در قالب آزمایش فاکتوریل بر پایهی طرح کاملا تصادفی با 3 شدت میدان مغناطیسی ((M1)50، (M2)100 و (M3) 150 میلی­ تسلا) و مدت زمان قرار دادن بذرها در معرض میدان مغناطیسی ((T1)10،(T2) 20 و(T3)30 دقیقه) اجرا شد. نتایج نشان داد که اعمال میدان مغناطیسی، جوانهزنی بذرها را در شرایط شور بهبود میبخشد؛ به طوریکه بیشترین درصد جوانهزنی با 74.44 و 73.05 درصد به ترتیب متعلق به تیمارهای 100 میلیتسلا به مدت 20 دقیقه و 100 میلیتسلا به مدت 30 دقیقه بود که نسبت به شاهد 28 درصد موجب بهبود جوانهزنی شدند. همچنین این تیمارها برترین تیمارها در صفات سرعت جوانهزنی و شاخص بنیه I و II بودند. بیشترین طول ریشهچه (2.37 سانتیمتر) و طول ساقهچه (3.50 سانتیمتر) به ترتیب متعلق به تیمارهای 50 میلیتسلا به مدت 20 دقیقه و 100 میلیتسلا به مدت 10 دقیقه بود. بیشترین وزن خشک ریشهچه (0.24 گرم) و وزن خشک ساقهچه (0.81 گرم) در تیمار 100 میلیتسلا به مدت 10 دقیقه مشاهده شد. Manuscript profile -
Open Access Article
121 - اثرخراش دهی اسیدی و سرما روی جوانه زنی بذر سه گونه درختی فضای سبز
بهاره دل طلب نیره نظیری مقدم مجتبی خرمی راد بهزاد کاویانیجوانهزنی بذر برخی گونههای چوبی به دلایل مختلف از جمله خفتگی فیزیولوژیکی و مکانیکی و حضور ترکیبات ممانعتکننده در بافتهای بذر با مشکل و در میزان پایین انجام میشود. پرایمینگ یکی از مهمترین تیمارها برای افزایش ظرفیت جوانهزنی بذرها است. هدف این مطالعه، بررسی اثر تیمار Moreجوانهزنی بذر برخی گونههای چوبی به دلایل مختلف از جمله خفتگی فیزیولوژیکی و مکانیکی و حضور ترکیبات ممانعتکننده در بافتهای بذر با مشکل و در میزان پایین انجام میشود. پرایمینگ یکی از مهمترین تیمارها برای افزایش ظرفیت جوانهزنی بذرها است. هدف این مطالعه، بررسی اثر تیمارهای مختلف چینه سرمایی و اسید سولفوریک روی رشد و درصد جوانهزنی بذرهای اقاقیا، عرعر و زبان گنجشک بود. این پژوهش به صورت فاکتوریل در قالب طرح بلوک کامل تصادفی با دو عامل؛ گیاه و چینه سرمایی در چهار تکرار انجام شد. نتایج نشان داد که بالاترین درصد جوانهزنی (72 درصد) در تیمار اسید سولفوریک 50 درصد روی بذرهای اقاقیا و پایینترین آن (18 و 12 درصد)، به ترتیب در تیمارهای شاهد و اسید سولفوریک 95 درصد روی بذرهای زبان گنجشک به دست آمد. نتایج کلی این پژوهش نشان داد که بهترین تیمار چینه سرمایی برای اغلب صفات اندازهگیریشده، اسید سولفوریک 50 درصد و سرمای سه درجه سانتیگراد به مدت 20 روز بود. Manuscript profile -
Open Access Article
122 - Effect of seed priming and weed management on yield and yield components of maize (Zea mayz L.)
Amin Allah Poudineh1 Hassan Makarian*2 Hamid Abbasdokht2 Mehdi Baradaran Firouz Abadi2 Abbas Nasiri Dehsorkhi3In order to investigate the effect of integrated weed management on yield and yield components of maize (SC704) an experiment was conducted at the research field of Shahrood University of Technology as randomized complete blocks design with four replications. The treatm MoreIn order to investigate the effect of integrated weed management on yield and yield components of maize (SC704) an experiment was conducted at the research field of Shahrood University of Technology as randomized complete blocks design with four replications. The treatments were; weed free, weedy, recommended herbicide dose (nicosulfuron 80 g.a.i. ha-1), hydro priming + reduced herbicide dose (nicosulfuron 40 g.a.i. ha-1), hydro priming + weeding 6 weeks after crop emergence, hydro-priming, hydro-priming + priming with salicylic acid + reduced herbicide dose, priming with salicylic acid, priming with salicylic acid + weeding, priming with salicylic acid + reduced herbicide dose, hydro-priming + priming with salicylic acid + weeding. The results indicated that no significant difference was observed in density and biomass of weeds between the combinations treatments (priming with salicylic acid + reduced herbicide dose and hydro-priming + priming with salicylic acid + weeding 6 weeks after emergence) and herbicide recommended dose treatment. Hydro-priming + reduced herbicide dose increased the biological yield by 25 and 45 percent in comparison to herbicide recommended dose and weed free treatments, respectively. The results indicated that hydro priming + reduced herbicide dose and priming with salicylic acid + reduced herbicide dose of nicosulfuron increased grain yield by 45.3% in comparison to weedy treatment. Based on the results of this experiment, seed priming in combination with reduced dose of herbicide and or with weeding, can effectively control weeds and increase crop yield and also reduce herbicide consumption. Manuscript profile -
Open Access Article
123 - Effect of seed priming on germination characteristics and some antioxidant enzymes activity of Basil (Ocimum basilicum L.) under drought stress conditions
Ahmad AfkariSeed pre-treatment technique has been introduced as a germination and establishment enhancer under environmental stress. In order to study the effects of priming on germination characteristics growth and some antioxidant enzymes activity of basil (Ocimum basilicum L.) u MoreSeed pre-treatment technique has been introduced as a germination and establishment enhancer under environmental stress. In order to study the effects of priming on germination characteristics growth and some antioxidant enzymes activity of basil (Ocimum basilicum L.) under drought stress conditions, a factorial experiment in a completely randomized design with four replications, at the physiology lab of the Islamic Azad University of Ardebil in 2013 was carried out. Experimental treatments include drought stress at four levels (0, -4, -8 and -12 bar) and three pre-treatments including potassium nitrate with concentrations of 1% and 2%, water as hydro priming and control treatment. The results showed that the effect of drought stress and priming on germination components and antioxidant enzymes was significant. The results showed that drought stress reduced the percentage of germination, pace of germination, rootlet length, seedling length and increased activity of superoxide dismutase, glutathione peroxidase, catalase and ascorbate peroxidase enzymes. The results of the comparison of mean interactions of drought stress and priming showed that the maximum activity of Antioxidant enzymes were obtained by pre-treatment of potassium nitrate with a concentration of 1% in a -12 bar drought level. In general, it can be concluded that basil seed pre-treatment with 1% potassium nitrate improves the basil germination parameters under drought stress conditions and increased the tolerance of basil plant to drought stress by increasing the activity of antioxidant enzymes in the germination stage. Manuscript profile -
Open Access Article
124 - Effect of Nanoparticles of Selenium (Nano-Se) and Rice bran Extract on Germination and Some Morphophysiological Characteristics of (Astragalus adscendens Boissier)
Reza Dehghani BidgoliIn order to investigate the effect of seeds priming of Astragalus adscendens with Rice bran extract and potassium nitrate (Nano-Se) solution in the early stages of germination, a factorial experiment was conducted in a completely randomized design (CRD) with four replic MoreIn order to investigate the effect of seeds priming of Astragalus adscendens with Rice bran extract and potassium nitrate (Nano-Se) solution in the early stages of germination, a factorial experiment was conducted in a completely randomized design (CRD) with four replications conducted at the botany Lab of the Department of Biotechnology, University of Kashan, in 2017. Experimental treatments consisted of priming with Rice bran extrac solution at 4 levels (zero as control, 0. 1, 0.2 and 0.5 (percentage of weight - Volume: w/v), and Nano-Se in 4 levels (zero as control, 0.04, 0.08 and 0.1) w/v for 2 hours at 25 ° C. The results of the experiments showed that Rice bran extract, Nano-Se solution and interaction of treatments were significant at the 1 % level on all studied traits, including germination percentage, root length, stem length, germination coefficient, relative content of water, chlorophyll a, b and total chlorophyll content. Also, the use of rice bran extract 0.1% increased the 15%. of root length but with Increasing the concentrations of bran extract root and shoot length decreased compared to control. Also, seeds priming with rice bran extract 0.2% and Nano- Se 0.8% increased the root length 37%. The highest germination percentage, the content of chlorophyll a and b, and stem length were obtained by applying 0.11% w / v Rice bran extract solution with 0.1% w/v of Nano-Se . Also, applying these treatments alone had positive and significant effects on the studied traits. Manuscript profile -
Open Access Article
125 - Investigation of water deficit and physical seed priming effects on some morphophysiological traits and grain yield of maize (Zea mays L.)
Farhad Farahvash Reza Siyami Bahram Mirshekari Varahram Rashidi Alireza TarinejadTo investigate the physical seed priming of maize under water deficit, a split plot experiment based on completely randomized block design with three replications was conducted at the Agricultural Research Station of Islamic Azad University, Tabriz Branch in 2014. Main MoreTo investigate the physical seed priming of maize under water deficit, a split plot experiment based on completely randomized block design with three replications was conducted at the Agricultural Research Station of Islamic Azad University, Tabriz Branch in 2014. Main plots consisted of two irrigation levels (control and water deficit respectively 70 and 110 mm evaporations from class A pan) and sub plots of eleven levels of physical priming (gamma and beta rays with fixed velocity of two micro curie, laser with continuous wave He-Ne with wavelength 6328 angstrom, magnetic field with 40 Mt and ultrasonic waves with maximum 3 wat/cm2 in 5 and 10 minutes along with control, without any treatment). Based on the results obtained, grain yield and leaf area index decreased by 18.5 and 23% respectively under drought stress condition in comparison with normal irrigation (70 mm evaporation from the pan). Proline concentration of leaves increased under drought stress by 38% as compared with control treatment. The highest leaf area indices by using magnetic field and 5 minutes laser and gamma irradiations obtained to be 3.95. The highest grain yield belonged to treatment of 5 and 10 minutes of magnetic field and to treatments of 5 minutes gamma and laser irradiations. Increasing treatment time from 5 to10 minutes, of gamma and laser irradiations decreased grain yield by 20 and 17%, respectively. It can be concluded that physical seed priming by magnetic field, gamma and laser irradiations for short times can be recommended for higher grain yields. Manuscript profile -
Open Access Article
126 - Effect of salicylic acid on yield and yield components of salt-tolerant and salt-sensitive wheat cultivars in saline conditions
B. Motiee M. ArminThe effect of salicylic acid on yield and yield components of salt-tolerant and salt-sensitive wheat cultivars in saline conditions was investigated in Factorial experiment based on randomized block design with 3 replications in Islamic Azad University farm research in MoreThe effect of salicylic acid on yield and yield components of salt-tolerant and salt-sensitive wheat cultivars in saline conditions was investigated in Factorial experiment based on randomized block design with 3 replications in Islamic Azad University farm research in 2009-2010. Factors included: cultivar (Akbari and falat, salt-tolerant and salt-sensitive, respectively) and salicylic acid application method (seed treatment, foliar application, seed treatment+foliar application and control). 0.5 gkg-1 salicylic acid for seed treatment and 0.5 mM for foliar application were used. Foliar application was done in booting stage. The result showed that salicylic acid application method had significant effect on yield and yield components of wheat in saline condition except Na+ and K+ content. Seed treatment+foliar application had more effect on all parameters. The highest economic yield was achieved with seed treatment+foliar application of salicylic acid. Biological yield, economic yield, number of seed per ear and 1000 seeds weight were significantly different between the two cultivars. For all parameters Akbari cultivar was better than Falat in saline condition. There was no significant difference between cultivars for other parameters. Overall, in saline conditions, the use of Akbari cultivar with seed treatment+foliar application of salicylic acid is appropriate to achieve the best yield production. رد بیولوژیک، تعداد دانه در سنبله و وزن هزار دانه در دو رقم با هم اختلاف آماری معنی داری داشت و رقم اکبری نسبت به رقم فلات برتری داشت. در این شرایط رقم اکبری 18 درصد عملکرد اقتصادی بیشتری نسبت به رقم فلات داشت. از نظر سایر خصوصیات اندازه گیری شده اختلافی بین دو رقم مشاهده نشد. در مجموع نتایج این آزمایش نشان داد در شرایط شور استفاه از رقم اکبری و بذرمالی+محلولپاشی اسید سالیسیلیک مناسبترین تیمار جهت حصول عملکرد مطلوب بود. م در هکتار بیشترین وزن تر را داشت. در بین الگوهای کاشت مورد مطالعه، الگوی کاشت یک طرفه بیشترین وزن تر را با 13519 کیلوگرم در هکتار و بیشترین میزان بیوماس را با 7200 کیلوگرم در هکتار به خود اختصاص داد. در بین تراکم های آزمایش شده، بیشترین وزن تر با 13084 کیلوگرم در هکتار، بیشترین میزان بیوماس با 44/2467 کیلوگرم در هکتار و بیشترین تعداد میوه با 4/13450 میوه از تراکم 80000 بوته در هکتار بدست آمد. Manuscript profile -
Open Access Article
127 - تأثیر اسید سالیسیلیک و تنش آبی بر کلروفیل برگ و روند تغییرات مراحل مختلف رشد گندم (Triticum aestivum L)
M. Sharafizad M.R. Naghashzadehبه منظور بررسی اثرات اسید سالیسیلیک و تنش آبی بر کلروفیل برگ و روند تغییرات مراحل مختلف رشد گندم (Triticum aestivum L.) رقم چمران، دو آزمایش مزرعه در سالهای 90-1389 و 1390-1390 انجام شد. هر آزمایش انجام شد. به صورت کرت های خرد شده فاکتوریل در قالب طرح بلوک های کامل تصا Moreبه منظور بررسی اثرات اسید سالیسیلیک و تنش آبی بر کلروفیل برگ و روند تغییرات مراحل مختلف رشد گندم (Triticum aestivum L.) رقم چمران، دو آزمایش مزرعه در سالهای 90-1389 و 1390-1390 انجام شد. هر آزمایش انجام شد. به صورت کرت های خرد شده فاکتوریل در قالب طرح بلوک های کامل تصادفی با سه تکرار. نتایج تجزیه ترکیبی نشان داد که سال تأثیر معنی داری بر کلروفیل برگ نداشته است. شرایط پرآبی و تنش آبی (Z55) به ترتیب دارای بیشترین و کمترین میزان کلروفیل بودند. زمان مصرف اسید سالیسیلیک و غلظت های مختلف اسید سالیسیلیک اثر معنی داری بر کلروفیل برگ داشتند. کلروفیل برگ در مراحل رویشی و زایشی با عملکرد دانه همبستگی مثبت و معنیداری داشت و در مرحله رشد دانه با عملکرد دانه همبستگی منفی معنیداری داشت. کلروفیل برگ در مرحله گلدهی با وزن هزار دانه همبستگی مثبت و معنیدار و در مرحله رشد دانه با وزن هزار دانه همبستگی منفی معنیداری داشت. دادهها نشان داد که کاربرد سالیسیلیک اسید منجر به افزایش کلروفیل برگ در مراحل رویشی و زایشی شد، بنابراین یک استراتژی مهم برای افزایش عملکرد در برابر اثرات مخرب تنش آبی بود. Manuscript profile -
Open Access Article
128 - Effects of seed priming on by different physical germination, physiological and morphological characteristics in sunflower (Helianthus annuus)
S. Baser kouchebagh F. Farahvash B. Mirshekari F. Rahimzadeh Khoei H. Kazemi ArbatIn order to study the effect of different seed treatments on germination of sunflower, on experiment was conducted in laboratory and greenhouse stages with completely randomized design and three replications in laboratory and four replications in greenhouse, in research MoreIn order to study the effect of different seed treatments on germination of sunflower, on experiment was conducted in laboratory and greenhouse stages with completely randomized design and three replications in laboratory and four replications in greenhouse, in researcher Faculty of Islamic Azad University of Tabriz in 2013. Treatments included, ultrasonic treatments with maximum (3 w.m-2) and gamma and beta irradiation treatments (2 µc) for 10 minutes laser treatments (6328A°) and magnetic field (40 MT) in three time (5, 10, 15 minutes) on wet seed, hydro-priming for 24 hourse and control. Results indicate that maximum final germination percentage was by seed treatments with laser irradiation for 10 minutes (nearly by 98.33%). Cultivating after hydro-priming, seedling length ratio to control inceased 99%. Highest vigor index was magnetic field treatment for 5 minutes. Highest root length was magnetic field treatment for 15 minutes. Magnetic field treatment for 15 minutes had the most effect on plant height with 93 mm when sunflower seeds that were treated by magnetic field for 15 minutes were cultivated stem dry weight ratio to control increased nearly 121%. Lowest stem dry weight was by gamma irradiation (12.16 g). Results show that physical irradiation treatments are for recommended for increased product. Manuscript profile -
Open Access Article
129 - Study of priming on the germination traits of corn (K. Sc640)
reza Rezaei Sokhat Abandani ahmad Mohseni mehdi Ramezani hamid reza Mobassar To study of priming effect on characteristics of germination in corn seedling, an experiment was done based on CRD with three replications in the farm research of Qaemshahr Islamic Azad University in 2010. Treatments were considered as polyethylene glycol (P More To study of priming effect on characteristics of germination in corn seedling, an experiment was done based on CRD with three replications in the farm research of Qaemshahr Islamic Azad University in 2010. Treatments were considered as polyethylene glycol (PEG) with densities 5 and 10 percent, potassium nitrate (KNo3) with densities 1 and 2 percent, potassium chloride (KC1) with densities 2 and 4 percent, water and control (without prime). The results showed that the maximum germination rate for polyethylene glycol prime solution obtained with potassium nitrate with densities 10 and 1 percent and hydro priming (water) and maximum rootlet length and germination average obtained for control and potassium nitrate 1 percent. The maximum length of rootlet to prime obtained with potassium nitrate 1 percent and lowest rootlet length and stems to prime potassium nitrate and potassium chloride with densities 2 and 4 percent. The maximum germination rate index, mean daily germination and mean time to germinate obtained priming with potassium nitrate and potassium chloride with densities 2 and 4 percent and highest dry weight of rootlet to stem obtained priming potassium chloride with 4 percent. The highest wet weight rate of rootlet to stem obtained priming potassium chloride with densities 4 percent and minimum vigor ii index obtained with primed product by potassium nitrate and potassium chloride with densities 2 and 4 percent. Manuscript profile -
Open Access Article
130 - The effect of priming and its period on germination and seedling growth of forage sorghum (speedfeed)
M. Ramezani R. Rezaei sokht-Abandani In order to study the effects on germination properties of forage sorghum (speedfeed) priming an experiment was performed in factorial shape and in the mould of totally accidental design in 3 replications in Qaemshahr azad university in 20 More In order to study the effects on germination properties of forage sorghum (speedfeed) priming an experiment was performed in factorial shape and in the mould of totally accidental design in 3 replications in Qaemshahr azad university in 2010. The treatments had PEG of 5 and 10 percent density, KNO3 of 1 and 2 percent density, KCL of 2 and 4 percent density and in the period of 4, 8 and 16 hours.The results showed that the most caulicle length was gained under 16 hours treatment and priming of 4 percent density. But the most caulicle KCL and seedling length was gained under time treatments and KCL priming of 4 percent density during 16 hours.The most length ratio of ridicule and caulicle CRLS was also gained by PEG priming of 10 percent density during four hours. About the most wet weight ratio R/S, and the dry weight ratio R/S, they were seen by KNO3 and PEG of 1 and 5 percent density in the period of 4 and 16 hours. The most germination rate was also gained by PEG of 10 percent density and during 8 hours. The most and the least normal bud was gained by KNO3 and KCL priming of 1 and 4 percent density in common duration of 4 hours, respectively. Manuscript profile -
Open Access Article
131 - Effect of seed priming on the germination of forage maize under salt stress
M. Zadehbagheri SH. Javanmardi M. KamelmaneshGermination and seedling establishment of the major stages in the life cycle of plants is influenced by various environmental factors. This study was designed to investigate the effect of seed priming on germination characteristics of forage maize plant was done. Primin MoreGermination and seedling establishment of the major stages in the life cycle of plants is influenced by various environmental factors. This study was designed to investigate the effect of seed priming on germination characteristics of forage maize plant was done. Priming treatments included four levels (zero, 1, 2 and 3 mM), salicylic acid and salinity of 4 concentrations (zero, 1, 2 and 3%) sodium chloride, respectively. Factorial experiments in completely randomized design with three replications at the Research Lab of the Faculty of Agriculture, Islamic Azad University, Shiraz was performed. Priming with salicylic acid improve percentage rate, the germination index. The results showed that the effect of priming with salicylic acid and salinity on the percentage, speed of germination index, see Index Seed, Seedling and rootlet weight was significant. Highest percentage, speed of germination index of seeds by salicylic acid, 1 and 2 mM prim and salinity was free environment. Vigor index of seeds by salicylic acid, 1 and 2 mM prim and salinity conditions were 1% had the maximum value. Salicylic acid concentration increased to 3 mM reduced traits was assessed in this study. Seedling fresh weight of the seeds by the concentration of 2 mM prim and salinity conditions were 2 percent was highest. Interaction among different concentrations of salicylic acid and sodium chloride showed no significant difference in terms of weight rootlet. Manuscript profile -
Open Access Article
132 - The effects of seed priming on germination traits of Triticale in salinity stress conditions
Hamidreza KHazaie Ahmad Nezami Majid Dashti Hamidreza Mehrabadi This research was conducted in order to effects of seed priming on germination traits of salt sensitive Triticale line (ET-82-8) under salinity stress conditions. Priming treatments were done by distilled water (Hydro primed) and dif More This research was conducted in order to effects of seed priming on germination traits of salt sensitive Triticale line (ET-82-8) under salinity stress conditions. Priming treatments were done by distilled water (Hydro primed) and different osmotic potential (-1, -1.5 and -2 Mpa) of NaCl and PEG6000 for 6, 12 and 24 hours compared with dry untreated seeds. The seeds were raised and dried after priming, then planted in petri dishes. Salinity treatments were applied by different osmotic potential of NaCl (0, -0.5, -1 and 1.5 Mpa) in germinator with 20◦C temperature. Factorial experiment was used in CRD with three replications. Results showed that germination rate, root and shoot length and seed vigour significantly increased when seeds hydro primed for 6 hours in no salt stress conditions comparing to no primed seeds, while root and shoot weight and seed germination was not affected. Seed hydro priming for 24 hours negatively affected all traits in both no stress and salt stress conditions. Increased salt stress up to -1 Mpa hydro primed seeds for 6 hours showed better germination rate and vigour than no primed seeds. Seed osmopriming with NaCl and PEG6000 significantly increased length and weight of shoot compare to hydro primed seeds in moderate salt stress (-1 MPa). Manuscript profile -
Open Access Article
133 - The examination of priming on Phonological, Morphological characteristics and silage yield two hybrid Maize with summer delaying cultivation in Mazandaran province
A. Mohseney Kafshgarkolaei H. R. Mobassar H. Hatami R. Rezaei Sokht Abandani -
Open Access Article
134 - The effect of seed Priming and planting date on yield and yield components of wheat Chamran variety in north of Khuzestan.
Shapour Lorzadeh Mehran SharafizadehIn order to investigate effect of seed priming and plantig date on yield and yield components of wheat Chamran variety the research in both laboratory and field in Dezful –Safiabad research center in 2014-2015 was conducted. Treatments include priming with salicyl MoreIn order to investigate effect of seed priming and plantig date on yield and yield components of wheat Chamran variety the research in both laboratory and field in Dezful –Safiabad research center in 2014-2015 was conducted. Treatments include priming with salicylic acid in the four levels {control (distilled water), 0.7, 1.2, 1.7 mM} and four levels of planting date (10 December, 20 December, 30 December, 9 January) in the factorial design based on randomized completely design was conducted at research farm of Agriculture Research Center. The results showed that the effect of planting date on yield and its components were significant at the 1% level. Traits in the latest sowing date significantly decreased. Grain yield in the third planting date (10 January) the highest amount (6207.7 kg / ha).The highest biological yield and harvest index the amount of (14155 kg / ha) and (44.03%) in the third planting date were observed, respectively. In general, the traits were significantly decreased in the last planting date. So to achieve the highest yield, at a concentration of 7.0 mM priming and culture of 10 January date is recommended. Manuscript profile -
Open Access Article
135 - Effects of Biopriming with Trichoderma Fungi on Germination and Some Vegetative characteristics of Soybean and Canola
zahra rezaloo ghasem tohidloo samira shahbazi Hamed AskariIn order to investigate the effect of biopriming with selected species of Trichoderma on the morphological and germination characteristics of Canola (Brassica napus) seedlings, and soybean (Glycine max) cultivar Williams, an experiment was conducted in a randomized comp MoreIn order to investigate the effect of biopriming with selected species of Trichoderma on the morphological and germination characteristics of Canola (Brassica napus) seedlings, and soybean (Glycine max) cultivar Williams, an experiment was conducted in a randomized complete block design with three replications. The effect of gamma-mutation on Trichoderma genome and its effectiveness was investigated. Experiment with three levels of inoculation: control (non-inoculation), Inoculation with formulations from spores of wild type Trichoderma and inoculation with mutant isolates of the same species, at the Nuclear Agriculture Research Institute was carried out. Evaluation of germination indices (Germination percentage, stem length and root and seedlings and their fresh and dry weight and vigor index) based on ISTA standard implemented. Soybean bioprimed seeds with Trichoderma in most of measured indicators had significant difference with other treatments and growth components, especially in initial development and early growth stages were improved. In Canola seeds, all germination indices were decreased by biopriming with Trichoderma and in the most of the indices, there were no significant differences between wild type and mutant Trichoderma treatments. Overall, the results of this study showed, using seed biopriming with Trichoderma had different effects on plant growth parameters, and use of this technique needs case study for each plant genome. Manuscript profile -
Open Access Article
136 - Study of yield, vegetative traits and seed germination of pinto bean produced from biopriming with Trichoderma
zahra rezaloo ghasem tohidloo samira shahbaziIncreasing germination percentage and growth indices is important by using methods such as biopriming. The present study aims to investigate effect of biopriming with a number of selected species of native Trichoderma fungi of Iran on yield, germination, vegetative and MoreIncreasing germination percentage and growth indices is important by using methods such as biopriming. The present study aims to investigate effect of biopriming with a number of selected species of native Trichoderma fungi of Iran on yield, germination, vegetative and morphological components of Talash vriety bean seedlings. Also, the effect of induced-mutation by gamma irradiation on the Trichoderma genome and probebly increase in the efficiency of biopriming via using mutated Trichoderma isolates was studied. Experiments with three treatments: control (non-inoculation), Inoculated with wild type Trichoderma based bio-formulation and inoculation with mutants Trichoderma, at the Nuclear Agriculture Research Institute in the form of a completely randomized design with four replications were done. Evaluation of indices (Germination percentage; seedlings, stems and roots length ; their fresh and dry weight and vigor index) based on the ISTA standard method and yield in greenhouse was implemented. Results showed, bean seeds biopriming method with bio-formulations of Trichoderma species (wild type and mutant), plant's yield increased significantly compared to control. Germination percentage of seeds was significantly higher than control in fungal treatments. The important trait of dry weight has also increased compared to control and also had significant difference with control. The length of seedlings of bioprimed with Trichoderma was shorter than the control. Most of the indicators were significantly higher in the one percent level than control. Overally, the results of this study shows, in bean plants, the use of bio-priming seeds with Trichoderma, improves plant growth parameters especially in establishment and its early growth. Manuscript profile -
Open Access Article
137 - Effects of Potassium Nitrate on Germination Characteristics and Early Growth of Sunflower under Salinity and Drought Stresses
Seyed Mohsen SeyediIn order to study the effect of priming sunflower seeds by potassium nitrate on germination seeds was conducted experiments in salinity and drought conditions. Location of experiments was Physiology Laboratory, Faculty of Agriculture, Bu Ali Sina University, Hamedan. Sa MoreIn order to study the effect of priming sunflower seeds by potassium nitrate on germination seeds was conducted experiments in salinity and drought conditions. Location of experiments was Physiology Laboratory, Faculty of Agriculture, Bu Ali Sina University, Hamedan. Salinity experiment was conducted as factorial based on randomized complete block design (RCBD) with two factor of seed priming and salinity and three replications. Priming levels included control and seed treatment by potassium nitrate and salinity levels included 0, -2, -4, -6, and -8 bar. Also, drought experiment was conducted as factorial based on randomized complete block design (RCBD) with two factor of seed priming and drought levels in three replications. Drought experiment treatment included control (non-priming) and priming by potassium nitrate and drought stress treatment were five levels (0, -2, -4, -6, and -8 bar). The results of two experiments showed that increasing in salinity and drought stress, decreased germination components including germination, germination rate and dry weight of seedlings. However, this reduction was lower for seeds that were treated by potassium nitrate. In terms of the studied traits, at all of the levels of salinity and drought treatment seeds were better than control seeds. In general, it can be concluded that the priming of sunflower seeds by potassium nitrate improved the germination components under salinity and drought stress and can increase sunflower plant resistant against these stresses in the germination stage. Manuscript profile -
Open Access Article
138 - Effect of seed priming and potassium fertilizer on yield and yield components of canola in different planting dates
Hamid HatamiTo evaluate the priming effect and potassium on yield and yield components of rapeseed cv. Okapi at different planting dates, an experiment was conducted during 2012 at Bojnourd. Factorial experiment in a randomized complete block design with four replications in MoreTo evaluate the priming effect and potassium on yield and yield components of rapeseed cv. Okapi at different planting dates, an experiment was conducted during 2012 at Bojnourd. Factorial experiment in a randomized complete block design with four replications in two planting dates was conducted (1 October and 1 November). Factors examined included two levels of seed priming (non-Prime and priming solution of KNO3 ,-1 MPa for 24 h) and potassium fertilizer levels (zero, 75 and 150 kg K2o. ha). After analyzing the results of two simple planting date, were combined for analysis. Combined analysis of variance showed that all three experimental factors affect the number of pods per plant, grain yield, harvest index, and oil yield had significant impact. Planting date and priming showed a significant effect on 1000 seed weight. Planting date 1 October compared with 1 November, seed priming compared with non- Prime and potassium fertilizer consumption compared with no use, the characteristics were significantly increased. Therefore Planting date 1 October was optimum planting date on canola in the region, and in case of delay in sowing seed, priming done with a solution of KNO3 (-1 MPa for 24 h) or K2o consumption of 75-150 kg per hectare is recommended. Manuscript profile -
Open Access Article
139 - Priming effect of auxin and gibberellic acid on some quantitative and qualitative characteristics bean plant (Phaseolus vulgaris L.) under salt stress
Mojtaba Aghebat Bekheir Golfrani Farshad Ghooshchi meysam oveysiIn order to evaluate the effect of auxin and gibberellic acid priming on some quantitative and qualitative characteristics bean plant (Phaseolus vulgaris L.) in terms of soil salinity project in the laboratory and greenhouse Shnasy- Physiology, Islamic Azad University o MoreIn order to evaluate the effect of auxin and gibberellic acid priming on some quantitative and qualitative characteristics bean plant (Phaseolus vulgaris L.) in terms of soil salinity project in the laboratory and greenhouse Shnasy- Physiology, Islamic Azad University of Varamin rector in 1393 was performed. Plan factorial in a completely randomized design with three replications and 48 treatments were performed. The factors studied included hormone actions (lack of hormones, 50 ppm auxin, 50 ppm gibberellic acid, 25 ppm and 25 ppm gibberellic acid auxin) and salinity concentrations (0, 30, 60, 90 mM NaCl) was. In the house the best treatment of the interaction of auxin foliar application of 25 ppm with 25 ppm gibberellic acid in the absence of stress, so that in these conditions the maximum yield was 325 grams per square meter and the same minimum yield due to lack of hormone treatment with 90 mM NaCl salinity, which amounted to 113 grams per square meter, respectively. Most proline micromoles per gram fresh weight of leaf by leaf 7/60 in 90 mM NaCl, with no spraying and the lowest 5.25 micromoles per gram fresh weight of leaf leaf proline to the use of 25 ppm and 25ppm GA in terms of auxin lack of salinity (zero mM NaCl) was obtained. Most of the water content relative to the amount of 7/62 of the treatment of stress (zero mM NaCl) with 25 ppm and 25 ppm auxin and gibberellic least 9/37 of the water content of the non-application of maximum salt spray of the hormone in the 90 mM, respectively. The main effects and interaction of salinity and hormonal priming at 1 and 5 percent on grain yield, total chlorophyll content, relative water content, proline and electrical conductivity were significant. In this experiment, it was found that with increasing salinity levels remain functional attributes of pits chlorophyll and relative water content decreased also in part due to the actions of hormones sprayed incur bean plant was under stress. Manuscript profile -
Open Access Article
140 - Effects of seed priming with ascorbic acid on yield and some physiological traits of soybean under normal and interrupted irrigation conditions
Omid Gavili Asad RokhzadiIn order to study the effects of seed priming with ascorbic acid (AsA) on agronomic traits of two soybean cultivars under normal irrigation and interrupted irrigation at flowering stage, this experiment was carried out in a split-plot factorial arrangement with randomiz MoreIn order to study the effects of seed priming with ascorbic acid (AsA) on agronomic traits of two soybean cultivars under normal irrigation and interrupted irrigation at flowering stage, this experiment was carried out in a split-plot factorial arrangement with randomized complete block design in three replications at the research farm of agriculture faculty, Islamic Azad University, Sanandaj Branch in 2013. The main factor was irrigation with two levels of full irrigation and interrupted irrigation at flowering stage. The factorial combination of cultivar and seed priming with AsA was assigned in sub-plots. Two soybean cultivars included Hobbit and L17 and seed priming treatments included: 0 (Control or non-priming), 50, 100 and 150 mg/L AsA. Results showed that two soybean cultivars differently responded to seed priming with AsA under full irrigation and interrupted irrigation (drought stress). Hobbit cultivar positively responded to priming under stress conditions. AsA application in seed priming resulted in increasing of seed yield and seed oil yield in comparison with control (non-priming), whereas L17 cultivar had no response to seed priming in stress conditions. On the other hand in normal irrigation conditions two cultivars showed a reverse reaction to seed priming so that L17 cultivar positively responded to priming under full irrigation conditions especially the concentration of 150 mg/L AsA expressively increased seed yield of this cultivar Manuscript profile -
Open Access Article
141 - nfluence of seed priming with stimulants and water soaking on germination behavior of sugar beet (Beta vulgaris L.)
Ali Asghar Absalan Ali Ghanbari Mahdi Rastgoo Shahram norouz zadehTwo separate tests were conducted in laboratory, to evaluate the germination behavior of sugar beet under effects of priming treatments. The first experiment examined the effect of time (3, 6, 12, 24 and 48 hours) and concentration (25, 50, 100, 200 and 400%) of two typ MoreTwo separate tests were conducted in laboratory, to evaluate the germination behavior of sugar beet under effects of priming treatments. The first experiment examined the effect of time (3, 6, 12, 24 and 48 hours) and concentration (25, 50, 100, 200 and 400%) of two types of stimulants (Seed-start and Humic acid). The second experiment is consisted of seed priming times (3, 6, 12, 24 and 48) of two methods of hydration in water (running water and soaking in a Petri dish). The results showed that both tests have a significant effect on germination of sugar beet. The lowest time (3 hours) and the lowest concentration (25%) of priming of the Seed-starter and the Humic acid are desirable to improve sugar beet seed germination. The method of running water (48%) had better effect compared to soaking in a Petri dish (45%). Generally, methods of running water, soaking in a Petri dish, seed-start and Humic acid improve germination 76, 36, 79 and 64% compared to control, respectively. The impact of method and time of priming on germination rate showed the same trend like percentage of germination. Impact of stimulants can be because of nutrition element and influence of leaching with running water can be because of washing the inhibitive material on the seed coat. Seed-start treatment (Concentration of 25% with 3 hours) and leaching with running water (48 hours) can be introduced as the best treatment. Manuscript profile -
Open Access Article
142 - Study of priming (hydropriming, gibbberllic acid and nano silver atomic) seed on the improve indices germination and seedling growth Avena (Avena sativa L.) under salt stress
Faezeh Thaleghni moghadam Farshad Ghooshchi Alireza SafahaniThe aim of this study was to evaluate the effect of gibberellic acid and silver nano particles and hydro priming mitigate the effects of salinity on oatsIs at the stage of germination and growth. In order to evaluate the effect of hydro-priming, pre-treatment of gibbere MoreThe aim of this study was to evaluate the effect of gibberellic acid and silver nano particles and hydro priming mitigate the effects of salinity on oatsIs at the stage of germination and growth. In order to evaluate the effect of hydro-priming, pre-treatment of gibberellic acid and silver nano particles (priming in the lab and sprayed in the greenhouse) to improve germination and seedling growth indices oats in salinity stress conditions (0,4,8,12 ) dS m and gibberellic acid at a concentration of 20ppm and 10ppm silver nano particles factorial design quite "random with three replications. The criteria evaluated were germination percentage, seed yield and shoot and root weight seedling dry, electrical conductivity, the results showed that salinity significant effect (P>0.01) on all of these things and be reduced. the interaction of salinity and priming on germination was not significant. the interaction of salinity and dissolved application on grain yield, root length, shoot length and root dry weight were significant (P>0.01). average interaction between salinity and foliar showed that the highest yield (2.49 grams per plant) the maximum root length (13.29cm) and, most during the shoot (14.99cm) and the highest seedling dry weight (24.819mg) of silver nanoparticles with an average salinity and pretreatment (18.98) Was obtained . The lowest grain yield (1.4999 grams per plant), root length (2 cm, 10 cm stem length) of 12 dS m salinity treatments and anti-stress lack of substance was achieved.According to the results obtained from the use of silver nanoparticles and priming effect of intense passion to improve hydro-priming reduced grain yield. Manuscript profile -
Open Access Article
143 - The effect of salicylic acid priming on germination, yield and some morphological characteristics of different rainfed wheat cultivars in Khorramabad
علی Khorgami مریم Jaydari In order to study the effect of priming and foliar application of salicylic acid on germination, yield and some morphological characteristics of different wheat cultivars, an experiment was conducted as factorial based on randomized complete block design with thre More In order to study the effect of priming and foliar application of salicylic acid on germination, yield and some morphological characteristics of different wheat cultivars, an experiment was conducted as factorial based on randomized complete block design with three replications in agricultural research station of Sarab plain in Khorramabad in 2015-16. The application factor of the salicylic acid solution was in four levels (control, foliar application of distilled water, priming and foliar application of salicylic acid with concentration of 1 mm, foliar application of salicylic acid with a concentration of 1.5 mm and foliar application of salicylic acid with a concentration of 2 mm) and the factor of rainfed wheat in three levels (Qaboos, Kareem and Kuhdasht) was the test agents. The simple effect of cultivar and salicylic acid solution on performance and most of the attributes were significant. According to the results, the rate of Qaboos with 3974.6 kg / ha had the highest seed performance among the studied figures. According to the obtained results, the best treatment for priming the seeds was the use of 1.5 mm salicylic acid, which caused significant effect on germination percentage and rate of germination .Priming and leaf foliar application with a concentration of 1.5 mm salicylic acid caused the seed performance to significantly increase in comparison to control treatment, so that seed yield was increased (10.3%) compared to control treatment by priming and leaf foliar application with a concentration of 1.5 mm salicylic acid. The results of priming and foliar application of two mm salicylic acid showed has compensated the reduction caused by priming on germination percentage and germination rate of seeds and increased the performance and performance components compared to the control treatment. Due to the positive effect of Qaboos and priming and foliar application of 1.5 mm salicylic acid in improving wheat grain performance, we can use priming and foliar application of 1.5 mm salicylic acid for rainfed Qaboos wheat in Khorramabad climate. Manuscript profile -
Open Access Article
144 - The effect of potassium priming and micronutrient foliar application on yield and yield components of sunflower
رويا بنيادي فرزاد جلیلیTo evaluate the priming effect of potassium resources and foliar spray of micronutrient on the yield and yield components of sunflower ( Farrokh cultivar ) a two factorial experiment was carried out at Agricultural and Natural Resources Station of Khoy ( W. Azarbaijan-I MoreTo evaluate the priming effect of potassium resources and foliar spray of micronutrient on the yield and yield components of sunflower ( Farrokh cultivar ) a two factorial experiment was carried out at Agricultural and Natural Resources Station of Khoy ( W. Azarbaijan-Iran ) in the crop year of 2014. The experiment was conducted on a randomized complete block design with 12 treatment and 3 replications. The priming factor was accompanied with the three levels of potassium chloride, potassium nitrate, and potassium sulfate; spraying factor accompanied with four levels of non-spraying and spraying with zinc, boron, and a combination spraying of zinc and boron. The variance analysis revealed a significant effect of priming of the seed on the diameter, number of seeds per head, and seed yield, but it had no significant impact on the other traits. The maximum number of seeds per head was 656.7 for zinc spraying and 669.7 for boron spraying. The minimum number was 511.8 for non-spraying. Combined spraying of boron and zinc showed maximum yield of 3899.9 kg per hectare and non-spraying showed the minimum yield of 2928.8 kg per hectare. The bilateral effect of these two factors affected the traits, seed yield, shoot-ash percentage, and harvest index. However, the highest seed yield was observed as 4040 kg/h for priming with potassium chloride and spraying with boron and the least seed yield was observed as 2652 kg /h for priming with potassium sulfate to increase the head diameter was more effective than other sources of potassium. Simultaneous spraying of zinc and boron increased the diameter, number of seeds per head, seed yield, and harvest index, while non-spraying reduced the number of seeds per head, seed yield, and biological yield. The correlation of bush diameter with seeds number, seeds yield and biological yield were significant, and so were the seed number correlation with seed yield, biological yield and its hollowness percentage. Manuscript profile -
Open Access Article
145 - Studying the priming impact with distilled water and salicylic acid on the enzymatic anti-oxidant and the infusion of hemp germination
شيرين کربلای قلیزاده tooraj mir-mahmoodi نبي خليلي اقدمSalicylic acid has significant role in the different stages of plant development ( phenology ). This molecular messenger plays an active role in the plant's defensive response. To elaborate this, studying morpho-physiologic and biochemical, salicylic acid priming ( SA ) MoreSalicylic acid has significant role in the different stages of plant development ( phenology ). This molecular messenger plays an active role in the plant's defensive response. To elaborate this, studying morpho-physiologic and biochemical, salicylic acid priming ( SA ) impacts in 6 levels ( 500, 750, 1000, 1250, 1500, and 1750 micromullar per litre )together with hydro-priming and control on the hemp seeds in the complete random blocks in 4 replications in the laboratory and greenhouse setting was designed and carried out. The results indicated the meaningful impact of the priming seeds of the hemp, with SA and distilled water on the antioxidant ( CAT, POD ), the significant indexes of germination ( P<0.05 ), and biologic yield of ( P<0.05 ). With the increase of the levels SA, biological yield had ascending process, and in the highest SA level, it showed 43 percent increase in relation to control. Therefore the usage of external SA increased the germination, better establishment of plantlet and improvement of significant indexes in plant physiology specifically in the primary stages of growth which had influence on the biological yield of the plant. Manuscript profile -
Open Access Article
146 - Effect of intensity, duration and power of ultrasonic waves on germination indices and photosynthetic pigments of canola seedling
Heshmat Omidi Saba DashabSeed priming using biophysical methods including ultrasonic wave causes changes in germination and some physiological traits of seedling. Accordingly, in order to investigate the effect of intensity and duration of ultrasonic wave on germination of rapeseed cv. Modena, MoreSeed priming using biophysical methods including ultrasonic wave causes changes in germination and some physiological traits of seedling. Accordingly, in order to investigate the effect of intensity and duration of ultrasonic wave on germination of rapeseed cv. Modena, an experiment as factorial was conducted based on a completely randomized design with three replications in Laboratory condition. Experimental factors consisted of power 60, 80, and 100 W and two ultrasonic waves 40 and 59 kHz at duration of 2, 4, 6, 8, and 20 minutes. The triple interaction of power × irradiation intensity × irradiation time was significant on germination indices including percentage and rate of germination, seedling vigor index of length and weight and seedling traits including chlorophyll a, b and total, and carotenoid content. Germination percentage using 40 and 59 kHz ultrasound waves at 100 W for 2 minutes was increased by 17.8%. The seedling vigor index of length and weight were improved using 59 kHz ultrasonic power with 100 W, and compared to control treatment had increasing 33.8 and 25.8%, respectively. In the application of 40 kHz ultrasound power with 80 W in 8 minutes, total chlorophyll, chlorophyll a, and chlorophyll b content than control treatment was 61.26, 26.3, and 34.9 µg/g FW, respectively. Based on the present research, seed pre-treatment of 40 and 59 kHz ultrasound waves with 100 watts can be recommended to improve seed germination indices and increase photosynthetic pigments contents. Manuscript profile -
Open Access Article
147 - The effect of carbon nanotubes seed priming on germination and photosynthetic pigmentation of maize hybrids under drought stress
Abolfazl Shahriari Heshmat Omidi Hossein Mohammadi Abolfazl Mohammadi khadijeh AhmadiTo investigation the effect of carbon nanotubes (CNTs) seed priming to enhance seed germination quantity and quality of corn hybrids under drought stress, an experiment was conducted as factorial based on completely randomized design at Seed Technology Laboratory of Sha MoreTo investigation the effect of carbon nanotubes (CNTs) seed priming to enhance seed germination quantity and quality of corn hybrids under drought stress, an experiment was conducted as factorial based on completely randomized design at Seed Technology Laboratory of Shahed University, Tehran, Iran. Drought stress induced by -0.5 and -1 Mpa polyethylene glycol solution on Fajr and Dehghan maize hybrids and the seeds primed by 25 and 50 mg/L CNTs. Nano-priming under drought stress was effective on germination percentage and rate, weight and length, chlorophyll a, b, and total chlorophyll and carotenoid contents of maize seedlings. Application of 25 mg/L CTNs at -1 Mpa drought stress effectively enhanced germination percentage of maize seed. Also, application of 50 mg/L CTNs improved photosynthetic pigmentation at -1 Mpa drought stress. Generally, CTNs priming improved seed germination traits and photosynthetic pigmentation of maize seedlings under drought stress conditions. Therefore, priming by 25 mg/L CTNs is recommended to improve maize seeds germination indices in arid and semi-arid regions. Manuscript profile -
Open Access Article
148 - The effect of chitosan on morphological and biochemical indices of seedling of aging accelerated soybean seeds
Vahid Mansouri Gandomani Heshmat OmidiTo determine the effect of a chitosan on aging accelerated soybean seeds, a study was conducted based on completely randomized design in factorial experiment with three replications in 2015 Science and Research Laboratory of Shahed University, Tehran. The first factor w MoreTo determine the effect of a chitosan on aging accelerated soybean seeds, a study was conducted based on completely randomized design in factorial experiment with three replications in 2015 Science and Research Laboratory of Shahed University, Tehran. The first factor was levels of accelerated aging including 0, 24 and 48 hours storing of seeds in saturated humidity at 41°C temperature. The second factor was chitosan different concentrations including 0, 0.25 and 0.5% w/v rates. In this experiment, morphological traits such as number of normal seedlings, seedling length, shoot relative water content of, shoot to root ratio and biochemical characteristics such as chlorophyll a and b, chlorophyll a to b ratio and the amount of carotenoids in soybean leaves were measured. Chitosan had positive significant effect on aging accelerated soybean seeds germination, also effecting on chlorophyll a and b and carotenoids amounts in soybean seedling leaves tending to morphological characteristics improvement. Chitosan has also increased the number of normal seedlings resulted from aging accelerated seeds, shoot to root fresh weight resulting in modulating destructive effect of accelerating of soybean seeds. Therefore, chitosan effecting on physiological traits and soybean seedling germination of soybean seeds could reduce the damage on soybean seeds caused by aging acceleration as a priming environment friendly and safe treatment. Manuscript profile -
Open Access Article
149 - Effect of sillicium priming on seed germination and initial growth of melon seedlings under salinity stress
Zakieh Azari Mohammad Sadeqe Sadeqi Hassan Bayat Hossein ArooieThe main goal of current experiment was evaluation of the effects Si priming on germination characteristics of melon under salt stress. For this purpose, a factorial experiment based on completely randomized design was conducted with three levels of Si 0 as control, 1 a MoreThe main goal of current experiment was evaluation of the effects Si priming on germination characteristics of melon under salt stress. For this purpose, a factorial experiment based on completely randomized design was conducted with three levels of Si 0 as control, 1 and 2 mM and 3 levels of NaCl (0, 75 and 150 mM) with three replications. Measured traits were germination percentage and rate, mean germination time, radical and plumule length, radical to plumule ratio, radical and plumule fresh weight. The salinity of 150 mM decreased germination percentage and rate, radical and plumule length by 9, 35, 69 and 71X comparing to the control, respectively. Seed priming with Si of 1 mM increased germination rate, radical and plumule length by 20, 33 and 35% comparing to the control, respectively. Seeds treated with Si (1 mM) had the highest germination percentage and rate at 75 mM of NaCl. On the whole, seed priming with Si could improve germination characteristics and seedling growth of melon under salinity stress conditions. Manuscript profile -
Open Access Article
150 - Effect of safflower seeds priming with abscisic and gibberellic acid on germination indices in salinity stress condition
Nasrin Sadat Esanejad Heshmat Omidi Arezoo ParaverThis study was carried out to determine the effect of hormonal priming to improve seed germination and initial growth of safflower seeds under salt stress. The experiment was done using factorial experiment based on completely randomized design in three repetitions in S MoreThis study was carried out to determine the effect of hormonal priming to improve seed germination and initial growth of safflower seeds under salt stress. The experiment was done using factorial experiment based on completely randomized design in three repetitions in Seed Technology Laboratory of Shahed University. Safflower seeds primed with 3% abscisic acid and 150 and 500 ppm of gibberellic acid then were placed under salinity stress condition of the natural salt of Qom lake (0, 3, 6, 9 and 12 dS.m -1). The germination indicies were measured. Priming seeds with gibberellic and abscisic acid relatively reduced the effect of salinity on seed germination and seedling growth and improved the germination and initial growth in low water potential condition. Gibberllic acid was more effective than abscisic acid. Priming with combination of 500 ppm gibberellic acid and 3% abscisic acid % combination had the greatest effect on germination percent, seedling length and seedling dry matter. Howerer, priming decreased the mean germination time. Priming with 500 ppm gibberellic acid and 3% abscisic acid combination under salinity conditions reduced the negative effects of salinity by increasing the water uptake in the plant, resulted in improvement of germination percentage, seedling length and seedling dry matter and length and weight vigor indecies. On the whole, priming of safflower seeds with combined priming increased the seeds resistance to the drought stress, therefore the seedlings with strong vigor and high germination percentage were produced. Manuscript profile -
Open Access Article
151 - The effect of halo-priming on germination indices of wheat under salinity stress
Noosheen Fallahi Ali Babaei Ghaghelestany Masomeh Asadi Gakieh Nasrin Hatami Gharah GhoviniLow seed germination and seedling emergence is one of the main problems in saline areas. Seed priming technique has been known as a challenge to improve germination and seedling emergence under different environmental stress conditions. To evaluate the effects of halo-p MoreLow seed germination and seedling emergence is one of the main problems in saline areas. Seed priming technique has been known as a challenge to improve germination and seedling emergence under different environmental stress conditions. To evaluate the effects of halo-priming on germination indices of wheat under salinity stress, a factorial experiment in a completely randomized design with three replications was conducted in 2015. Treatments consisted of priming with potassium nitrate, potassium chloride, calcium chloride, calcium sulfate 1% and control without priming and salinity levels 0, 50, 100 and 150 mM sodium chloride. Among pretreatments, potassium nitrate and calcium sulfate reduced the effects of salinity stress on germination and other indices. Priming with potassium nitrate had the most effects on germination percentage, dry plumule and seedlings weight. Also, priming with calcium sulfate had the most effect on root fresh weight. Primed wheat seeds had better growth. On the whole, with increasing salinity levels, germination and related parameters decreased and that potassium nitrate and calcium sulfate decreased negative effects of salinity. According to result, priming with potassium nitrate and calcium sulfate is recommended for the improvement of germination and initial growth of wheat seedling under salinity stress. Manuscript profile -
Open Access Article
152 - Effect of seed priming and their interaction on germination and seedlings characteristics of corn SC704 (Zea mays L.)
Mehdi Ramezani Reza Rezaei sokht Abandani In order to study the priming effect on germination and seedling characteristics of a single cross corn (SC­704), an experiment was carried out as a randomized complete block design (RCBD) with three replications at Agricultural and Natural Resources Res More In order to study the priming effect on germination and seedling characteristics of a single cross corn (SC­704), an experiment was carried out as a randomized complete block design (RCBD) with three replications at Agricultural and Natural Resources Research Center, Mazandaran province (Sari) in 2010. Treatments included seed priming with poly ethylene glycol (PEG) at concentration of 10­%, potassium nitrate (KNO3) 0.5­%, potassium chloride (KCl) 2­%, normal water and a control (no priming). The results showed that the maximum germination rate was occurred for a pretreatment with poly ethylene glycol 10­% and hydropriming (water). The lowest shoot wet weight and germination rate was obtained for osmopriming of potassium chloride 2­%. Maximum germination rate index, average germination time and mean daily germination was observed in the control and osmopriming with KCl 2­% and the highest ratio of dry weight R/S was obtained in potassium chloride 2­% pretreatment. Also the weighted index of seedling vigor was obtained by seed pretreatment with polyethylene glycol 10­%. In conclusion, the results of this study revealed that priming procedure improved seed germination of corn hybrid SC­704 and increased seed emergence rate could eventually increase its performance. According to the results, priming by polyethylene glycol 6000 (PEG 6000) 10­% and hydropriming (pure water) for 24 hours is recommended. Manuscript profile -
Open Access Article
153 - The effect of halo- and hydropriming on germination and initial growth of corn cv. SC704 under salinity and drought stress conditions
Alyeh Rokhfirooz Soleiman Jamshidi Naser MohebbalipourThis study was conducted during thesummer of 2013 in Islamic Azad University, Dezful branch in a completely randomized design with three replications in a factorial base in order to determine the effect of hydro and halopriming pretreatments on germination, early growth MoreThis study was conducted during thesummer of 2013 in Islamic Azad University, Dezful branch in a completely randomized design with three replications in a factorial base in order to determine the effect of hydro and halopriming pretreatments on germination, early growth and establishment of maize 704 single cross cultivar under salinity and drought conditions. To this end, the corn seeds pretreated with potassium nitrate (halopriming) and distilled water (hydropriming) in terms of germination index and growth of seedlings under salt stress by sodium chloride and drought conditions caused by poly ethylene glycol 6000 in water potentials of 0, -0.2, -0.4 and -0.6 MPa in greenhouse were studied in vitro. Seeds were able to germinate in all concentrations of sodium chloride solution, but germination was not observed only in -0.6 MPa osmotic potential. Pretreatment of seeds caused better seed germination and seedling growth under salinity and drought stresses. The application of hydro and osmotic pretreatments could compensate the negative effects of salinity and drought stresses and had positive effect on germination indices and also caused rapid seed germination. Generally, pretreatment practices are recommended for the improvement of germination and initial establishment of maize seedling. �مام غلظت­های محلول کلرید­سدیم بودند، اما تنها در پتانسیل اسمزی 6/0- مگاپاسکال جوانه­زنی مشاهده نشد. پیش­تیمار بذر باعث جوانه­زنی بهتر و رشد گیاهچه­ها تحت تنش­های شوری و خشکی ­شد. استفاده از روش پیش­تیمار اسمزی و آبی توانست اثرات منفی تنش­ها را جبران نماید و اثر مثبت بر شاخص­های جوانه­زنی داشت و باعث شد تا جوانه­زنی بذرها سریعتر انجام شود. در کل، اعمال پیش­تیمار برای بهبود جوانه­زنی و استقرار اولیه گیاهچه­ ذرت تحت تنش توصیه می­شود. Manuscript profile -
Open Access Article
154 - Effect of seed priming with salicylic acid on growth characteristics of borage plants (Borago officinalis) seedlings
Farid Shekari ramin Baljani jalal saba kamran Afsahi faribors ShekariGermination and seedlings establishment are critical stages in the plant life under different environmental conditions. For investigation of seed priming effects on borage plants (Borago officinalis) characteristics, an experiment was carried out in a completely randomi MoreGermination and seedlings establishment are critical stages in the plant life under different environmental conditions. For investigation of seed priming effects on borage plants (Borago officinalis) characteristics, an experiment was carried out in a completely randomized block design in four replications. Treatments consisted of seed priming by salicylic acid concentrations (500, 1000, 1500, 2000 µ M), seeds priming by distilled water (hydropriming) and non priming seeds were considered as control. Results showed that priming with salicylic acid had significant effects on emerged seedlings percentage, mean time to emergence, emergence index, fresh and dry weight, leaf area and specific leaf area (SLA). The highest emergence and emergence index of seedlings with the lowest mean time to emergence was observed in 500 µ M concentration of salicylic acid and the highest seedling dry weight and leaf area were found in 2000 µ m salicylic acid. The lowest values among treatments were belong to control followed by hydropriming of seeds treatment. Results indicated that dry weight of seedlings were increased by increasing emergence index and dereasing the mean time to emergence Manuscript profile -
Open Access Article
155 - The effect of seed-priming on germination indices and photosynthetic and carotenoids pigments of summer savory under calcium chloride stress condition
Ali Pourreza Heshmat OmidiGermination is an important step in seedling establishment and plays a key role in plant production. Environmental stresses such as salinity are a serious threat to the production of agriculture products, yield and active ingredients of medicinal plants. This experiment MoreGermination is an important step in seedling establishment and plays a key role in plant production. Environmental stresses such as salinity are a serious threat to the production of agriculture products, yield and active ingredients of medicinal plants. This experiment was conducted to investigate the effects of seed priming on germination parameters of Satureja hortensis under calcium chloride salinity stress (control, 40, 80 and 120 mM). The experiment was conducted in a completely randomized design (CRD) with a factorial arrangement. The pre-primings including control, hydro-priming, KNO3 with concentration of 0.3 Percent and GA3 with concentration of 500 ppm for 12 hours at temperature below 15 °C was carried out. The best homogeneity of time germination, the highest fresh weight and dry weight of the Satureja plant were observed in primed with KNO3. Hydro-priming treatment had the best germination rate and germ velocity coefficient. By increasing the salinity treatment up 120 mM, the germination time was delayed to 4.62 days and the germination rate decreased to 0.22 g per day and no produced the normal seedling. Generally, the reducing in plant growth and content of photosynthetic pigments and carotenoid pigments such as chlorophyll of leaf seedlings occurred at high salinity levels (80 mM up) happened. Therefore, based on the present study, we can uses seed pre-treatment with potassium nitrate or gibberellic acid to increase plant tolerance to salinity in step germination and seedling establishment. Manuscript profile -
Open Access Article
156 - Effect of seed priming with growth promoting bacteria on yield and yield components of corn under drought stress
Dariush SafariWater deficit and resulted drought stress are the main factors of crop yield lose in arid and semi-arid regions. Plant growth promoting bacteria can be used as a biological solution to mitigate negative effects of drought stress. To investigate the effect of seed primin MoreWater deficit and resulted drought stress are the main factors of crop yield lose in arid and semi-arid regions. Plant growth promoting bacteria can be used as a biological solution to mitigate negative effects of drought stress. To investigate the effect of seed priming with growth promoting bacteria on yield and yield components of corn SC770 under different drought stress conditions, a split-factorial experiment based on randomized complete block design was conducted at Kermanshah Research Center during growing season of 2017-2018. Four irrigation levels including normal irrigation, very mild, mild, and severe stress were applied by implementing of single-branch irrigation system. The seeds are inoculated by Pseudomonas putida Strain 41, 159 and Pseudomonas fluorescence Strain 23. Bacterial inoculation had significant impact on all studied traits. Increasing stress level depressed all studied traits compared to normal irrigation condition. Also, at all stress levels, bacterial inoculation improved corn traits. Therefore, seed priming with growth-promoting bacteria especially P. putida Strain 159 is recommended for improving yield and plant drought tolerance. Manuscript profile -
Open Access Article
157 - Spring durum wheat Zn, Mn and B seed priming in field conditions
Hamideh Shirvani sarakhsi Ebrahim Khalilvand BehrouzyarTo study the effect of various micronutrients concentrations as seed priming on spring durum wheat, an experiment was conducted in factorial experiment based on completely randomized design in three replications at Research Station of Tabriz University during growing se MoreTo study the effect of various micronutrients concentrations as seed priming on spring durum wheat, an experiment was conducted in factorial experiment based on completely randomized design in three replications at Research Station of Tabriz University during growing seasons of 2012-2013. Treatments were priming by water and concentrations of 1, 3 and 5 mg/kg of ZnSo4, MnSO4, and H3BO3. Interaction of micronutrients and of concentrations of seed priming had significant effect on dry weight per plant, harvest index, dry weight of stem, length of spike (p Manuscript profile -
Open Access Article
158 - The effect of seed priming by salicylic acid and nano-iron chelate on germination and initial growth of lentil under salinity stress
Hassan Nourafcan Masoumeh ShahmoradiTo study the effect of seed priming by salicylic acid and nano-iron chelate on germination and initial growth of lentil under salinity stress, a factorial experiment was conducted based on completely randomized design with three replications. Treatments was contained pr MoreTo study the effect of seed priming by salicylic acid and nano-iron chelate on germination and initial growth of lentil under salinity stress, a factorial experiment was conducted based on completely randomized design with three replications. Treatments was contained priming with salicylic acid and nano-iron chelate each with three levels (1000, 2000 and 3000 mg.L-1), hydropriming with distilled water and control (non-priming) and four salinity levels (control, 1000, 2000 and 3000 mg.L-1). The results showed that seed priming by salicylic acid and nano-iron chelate had significant effect on germination percentage and rate, emergence percentage and rate, mean of germination and emergence time mean, plumule length, fresh and dry weight under salinity stress. The sodium chloride salt with 3000 mg.L-1 rate caused significant decrement in seedling germination and initial growth characteristics, comparing to control. In the present study, salicylic acid showed positive effect on germination and growth characteristics of lentil seedling under salinity stress with and without nano-iron chelate, so that germination and initial growth characteristics of lentil seedling were increased by application of salicylic acid in sole and under salinity stress, comparing to control. Therefore, applying seed priming by salicylic acid with 3000 mg.L-1 to improve germination and establishment of seedling with or without salinity stress condition is going to be recommended. Manuscript profile -
Open Access Article
159 - Effect of seed priming with microelements on germination speed, seedling vigor and flower yield of marigold (Calendula officinalis L.)
Bahram MirshekariSeed nutrient priming is a simple and low cost method for nutrition, germination and primary growth improvement of crops. In order to evaluate the effect of seed priming on germina MoreSeed nutrient priming is a simple and low cost method for nutrition, germination and primary growth improvement of crops. In order to evaluate the effect of seed priming on germination and flower yield of marigold (Calendula officinalis L.), an experiment was conducted in Islamic Azad University, Tabriz Branch in 2011. Treatments were seed priming with zinc and manganese at concentrations of 0.5%, 1%, 1.5% and 2%, Zn- 1%+Mn1%, Zn1.5%+Mn1% and a control. Mean final germination percentage of seeds treated with zinc and manganese alone was 79% and 79.5%, respectively, while in control only 71% of seeds completed the germination process. Increasing of zinc and manganese concentrations resulted in lower seedling vigor index. Flower yield in treatments of ZnSO41%+MnSO41%, MnSO41.5%, ZnSO41.5%+MnSO41%, ZnSO41.5% and ZnSO42% produced higher flower yield, respectively. Two combined treatments were significantly different in essential oil yield, and essence yield in Zn1.5%+Mn1% was 0.03 ml. ha-1 lower than Zn1%+Mn1%. Response of essential oil yield to the studied treatments was positive and significant and all treatments produced higher yield in comparison to the control, exept 0.5%Zn and 0.5% Mn. In conclusion, seed priming with zinc and manganese solutions could be recommended as a method for improving marigold essential oil yield in field condition. Manuscript profile -
Open Access Article
160 - Gibberellic acid priming effect on Agropyron elongatum seed germination indices under drought stress
Seyyed Jalal Yadollahi Nooshabadi Farzad SharifzadeSeed priming pretreatment improves germination characteristics , seedling establishment and increase of seed performance under environmental stress conditions. This experiment was conducted as factorial based on a completely randomized design with four replication MoreSeed priming pretreatment improves germination characteristics , seedling establishment and increase of seed performance under environmental stress conditions. This experiment was conducted as factorial based on a completely randomized design with four replications using osmotic potential of -12 bar prepared by polyethylene glycol in order to evaluate the effects of gibberellic acid (GA) pretreatments on the behaviour of seed germination of Agropyron elongatom under drought stress. . Seeds were primed for 12 and 24 hours at two temperatures of 10 and 20°C with GA in three levels of 25, 50 and 100 ppm . All seed pretreatments had significant effect on the whole studied characteristics. Concentration of 25 ppm with GA was the best pretreatment which could increase significantly the whole germination percentage, normal seedling percentage, and length index of seedling vigor.The results obtained in temperature 10 and time duration of 12 were better in comparison to temperature 20 and time duration of 24 and significantly increased the germination and normal seedling percentage. Totally,the useful effects of seed pretreatment method with GA was confirmed for improving the seed germination performance of Agropyron elongatom especially in drought stress condition. Manuscript profile -
Open Access Article
161 - Effects of priming with micronutrients on seed reserve mobilization of lentil at different temperatures
Ali Asghar AlilooCrop yield in rain-fed regions is always affected by environment so that the instability of crop yield is considerably high in this condition. The study was carried out to evaluate effects of seed priming with Cu I, Zn II, K I, ZnSo4 on germination traits and seedling e MoreCrop yield in rain-fed regions is always affected by environment so that the instability of crop yield is considerably high in this condition. The study was carried out to evaluate effects of seed priming with Cu I, Zn II, K I, ZnSo4 on germination traits and seedling establishment at two temperatures of (10 °C and 20 °C). Results showed that seed priming influenced germination rate significantly and the primed seeds revealed higher germination rate than the unprimed seeds. The higher value was obtained by ZnSo4 treatment. However, germination percentage was not affected by priming treatments even though the priming slightly improved the value in comparison to control. Results also showed that the response of primed seeds to the low temperature was higher than in the high temperature. Remobilization of seed reserves was enhanced under priming treatments and the percentage of reserves depletion, conversion efficiency and total mobilized reserves were increased by seed treatments. It was concluded that not only the used compounds (particularly ZnSo4) can improve lentil establishment at early stages but also the compounds could be useful at bio-fortification programs at later stages. Manuscript profile -
Open Access Article
162 - Effect of osmopriming and drought stress on seed germination of Tagetes erecta
محمد رفیعی الحسینی سمیه اسماعیلیIn order to evaluate the seed germination indices of Tagetes) Tagetes erecta (under smopriming and drought stress treatments, an experiment was conducted as factorial in a randomized complete block design with three replications at the agronomy laboratory, faculty of ag MoreIn order to evaluate the seed germination indices of Tagetes) Tagetes erecta (under smopriming and drought stress treatments, an experiment was conducted as factorial in a randomized complete block design with three replications at the agronomy laboratory, faculty of agriculture, Shahrekord University. For this purpose, drought stress in levels of 0, -4, -8 and -12 bar and priming of seeds in levels of 0, -2, -4, -6 and -8 bar were applied using PEG6000. In this experiment, characteristics of germination percentage, germination rate, seed vigor index and mean germination time were evaluated. The results showed that by increasing drought stress from 0 to -4 bar, germination percentage, germination rate and seed vigor index significantly decreased while mean germination time increased and reached to 0 at the potentials of -8 and -12 bar. The maximum germination rate was observed at -2 bar priming whereas the increasing percentage was 24.91 compared to control. Also, it was found that by increasing drought stress, at the level of -4 bar, the maximum germination percentage, germination rate and seed vigor index obtained and the minimum of mean germination time was at -2 bar priming. In general, the osmopriming was able to increase the tolerance of Tagetes seeds against drought stress during germination and improve the properties of Tagetes seed germination. Manuscript profile -
Open Access Article
163 - ز
ensiyah ashrafi khorshid razmjou -
Open Access Article
164 - س
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