List of Articles Germination percentage

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  1 - Assessment and Identification of Tolerant Genotypes of Safflower (Carthamus tinctorius L.) to Salinity Stress in Germination and Seedling Stages under Laboratory Condition
  Khodadad Mostafavi
  Tolerance increasing to salt stress is essential need for sustainable safflower production in areas with risk of salinity. This requires new genetic sources of salt tolerant and more efficient techniques for identifying salt-tolerant germplasm. This study was conducted More

  Tolerance increasing to salt stress is essential need for sustainable safflower production in areas with risk of salinity. This requires new genetic sources of salt tolerant and more efficient techniques for identifying salt-tolerant germplasm. This study was conducted to access salt tolerance in primary growth stages of six safflower genotypes and finds the most beneficial salt tolerance traits in this stage. Investigation traits were germination percentage, germination speed, root length, shoot length, seedling length, seed vigor, seedling index, germination speed index and germination mean. An experiment with factorial arrangement was conducted by using a completely randomized design (CRD) with three replications in Biotechnology laboratory Islamic Azad University- Karaj Branch. Genotypes of safflower (Carthamus tinctorius L.) including KM5, KM8, KM12, KM19, KM47 and Kouse with five concentrations of NaCl (0, -0.3, -0.5, -1 and -1.5 ds/m) were treated. Analysis of variance showed that there were significant differences between genotypes, stress levels and their interaction. According to the fitted logistic model, the NaCl concentration level required for 50% reduction of seed vigor was -2 dS/m. Cluster analysis according Ward’s method, classified genotypes into three different groups. According to the results of this research, Kose was resistant cultivar at germination stage and early seedling growth. Manuscript profile
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  2 - Determination of Cardinal Temperature of three species of Lolium genus and responses to salinity and drought stresses
  Marjan Dyanat
  In order to study seed germination responses of three species of Lolium to temperature regimes, salinity and drought stresses three separate experiment were conducted as a factorial based on completely randomized design at laboratory of ecology of Faculty of Agriculture More

  In order to study seed germination responses of three species of Lolium to temperature regimes, salinity and drought stresses three separate experiment were conducted as a factorial based on completely randomized design at laboratory of ecology of Faculty of Agriculture, Science and Research Branch, Islamic Azad University in 2015. In frist experiment, factors were included three species of Lolium (poison ryegrass, Persian darnel and rigid ryegrass) and temperature at 12 levels (0, 3, 5, 7, 10, 12, 15, 20, 25, 30, 35, 40 0C). In second and third experiments effects of seven levels of salinity (0, 10, 20, 40, 80, 160 and 320 mmol) and seven levels of drought stress (0, -0.1, -0.2, -0.4, -0.6, -0,8 and -1 MPa) on germination percentage of three Lolium species were examined. Based on linear regression between germination rate and temperature, the cardinal temperatures: minimum (Tmin), maximum (Tmax) and optimum (To) were determined 2, 37 and 20ºC, for poison ryegrass, 0, 38 and 20 ºC for Persian darnel and 0, 38 and 23 ºC for rigid ryegrass, respectively. Three-parameter logestic model is well justified the relationship between different salinity and drought levels and germination percentage. Based on model, reduction of 50% of germination percentage in Persian darnel caused at intensified osmotic potential in comparison of two other species, so this species had more tolerance to salinity and drought stresses. Manuscript profile
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  3 - Effect of plant-derived smoke on germination and seedling growth in some species weed
  Marjan Diyanat
  In order to evaluate effects of plant-derived smoke on germination and seedling growth in some species weeds an experiment was conducted in factorial based on completely randomized design at laboratory of ecology of Faculty of Agriculture, Islamic Azad University, Scien More

  In order to evaluate effects of plant-derived smoke on germination and seedling growth in some species weeds an experiment was conducted in factorial based on completely randomized design at laboratory of ecology of Faculty of Agriculture, Islamic Azad University, Science and Research Branch, in 2015. First Factor was 12 weed species and second factor was germination treatment consisted of 10-3 M KNO3, 10–4 M GA3, 0.01 and 0.1 (V/V) smoke-extract dilution at constant temperature and alternating temperature. For the study species the relative effectiveness of alternating temperatures, KNO3, GA3 and smoke –extract dilution were compared on germination percentage, mean time to germination and seedling dry weight relative to the control. Results showed that smoke-extract dilution stimulated germination and seedling growth in a number of species weeds and it also had negative impacts on other species weeds. There were significant correlations between the effect of smoke-extract dilution and GA3 on the three measured parameters. None of the treatments were effective on all weed species. In addition, smoke –extract dilution appears to have no negative impact on seedling morphology, as observed with GA3, and may have wide-scale applicability as a germination and early growth stimulant. So smoke may have wide applicability as a germination and seedling growth stimulant in some species weeds. Manuscript profile
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  4 - Investigation on Allelopathic Effects of Shoot Aqueous Extracts in Bromus (Bromus japonicus. L.) Germination Characteristics and Seedling Growth Characteristics of Four Common Cultivars of Wheat (Treaticum aestivum L.) in Sistan Province
  Mahboobeh Basiri Mohsen Mousavi Asiyeh Siyah Mergoey
  A study was carried out to investigate the allelopahtic effects of shoot aqueous extract of Bromus (Bromus japonicus L.) on germination characteristics and seedling growth of  four  common cultivars of  Sistan wheat (Treaticum aestivum L.). The layout was More

  A study was carried out to investigate the allelopahtic effects of shoot aqueous extract of Bromus (Bromus japonicus L.) on germination characteristics and seedling growth of  four  common cultivars of  Sistan wheat (Treaticum aestivum L.). The layout was conducted as factorial in a completely randomized design with four replications in Biotechnology Research Center (Bio-center), University of Zabol in 2014. The treatments were in four levels (25, 50, 75 and 100%) of shoot aqueous extracts of Bromus plus distilled water as control. The results showed when concentration of shoot aqueous extracts increased, germination percentage, germination rate, root length, stem length, root fresh weight, stem fresh weight, root/stem fresh weight ratio, root/stem length ratio, seedling length, root dry weight, stem dry weight, and seedling vigor index decreased significantly. The functional three-parameter logistic model provided a successful estimation of the relationship between aqueous extract level and germination response of cultivars of wheat. The fitted model showed that by increasing concentrations of shoot aqueous extract of bromus, maximum germination percentage of wheat cultivars was decreased. Hamun wheat cultivar was more tolerant to different concentrations of shoot aqueos extract of bromus than other cultivars. It showed 50% reduction in maximum germination percentage when extract concentration was about 148.2 %. However, in Bulani wheat cultivar 50% reduction was about in 61.93% extract concentration. As conclusion, Bulani wheat cultivar was more susceptible to different concentrations of extract of bromus than other cultivars.  Manuscript profile
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  5 - Investigation of Salinity and Moisture on the Germination of Weed Seeds Mallow,Barnyard grass and Johnson grass in Terms of Deterioration of Seeds
  Ghodratolah Fatahi Eynolah Hesami Nima Ardalan
  In order to evaluate the effects of seed deterioration on capability of seed germination and seedling of three weeds-Malva neglecta L., Echinochloa crus-galli L.and Sorghum halepense L.-under saline stress conditions, an experiment was conducted at university of Ramin i More

  In order to evaluate the effects of seed deterioration on capability of seed germination and seedling of three weeds-Malva neglecta L., Echinochloa crus-galli L.and Sorghum halepense L.-under saline stress conditions, an experiment was conducted at university of Ramin in Khuzesatan. The arrangement was factrorial in form of a completely randomized design with 4 replications (RCD) in 2012. In  this experiment, The first factor was weed seeds at 3 levels (Malva neglecta, Echinochloa crus-galli and Sorghum halepense), the second factor was deterioration treatments at 4 levels (0, 3, 5 and 7 days‌), and the third factor was salinity (0,4,8 and 12dSm-1), and the forth factor was moisture stress at 3 levels (saturation field capacity(FC) and 50%FC). The results of experiment showed that seed deterioration and saline stress reduce all  measured characteristics including time, speed, uniformity, persentage and emergence index, germination percentage, radicle length, plumul length, vigos index, and seedling dry weight. A significant difference was observed at %1 level. Saline stress resulted in reduction of determined characters in the experiment. Whwrase in Wherase in Malva niglecta moisture Stress of 50% FC, FC and saturation reduced percentage of germination, in barnyard grass and johnsongrass the highest germination percentage was observed in saturation tseated seeds and the least percentage of emergences was observed in %50 FC treated seeds. Our results indicated that seed deterioration increased the  effect of salinity on weed seedling establishment and seed germination.   Manuscript profile
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  6 - Effect of tree formulations of diatomaceous earth on germination percentage and seedling growth rate of wheat, under laboratory conditions
  F. Shakhsi Zare R. Vafaei Shushtari H. Farazmand A. Marouf M. Ghazavi
  The aim of this study was to investigate the effect of Iranian formulation of diatomaceous earth (Sayan®), and other two DE formulations (Insecto® and SilicoSec®) on seed germination and seedling growth rate, under laboratory conditions (16 hrs light and 20& More

  The aim of this study was to investigate the effect of Iranian formulation of diatomaceous earth (Sayan®), and other two DE formulations (Insecto® and SilicoSec®) on seed germination and seedling growth rate, under laboratory conditions (16 hrs light and 20±2 °C). Wheat seeds (vr. Falät) were treated with 250, 500, 1000 and 1500 ppm of each DE formulations at four replicates. Seed germination was tested in standard methods and the length of seedling was measured, 8 days after treatment and compared with control. The results showed a significant difference between Sayan and two other formulation of DEs in seed germination and seedling growing rate of wheat seeds. How ever there was no significant difference between Insecto and SilicoSec. For Sayan, seed germination increased with increasing dosage. The highest seed germination (89%) and the least (54%) occurred in 1500 and 250 ppm respectively. Seedling length was not influenced by increasing Sayan concentrations. According to results of this study, Iranian formulation of diatomaceous earth (Sayan®) has lower effects on seed germination and seedling growing rate of wheat and can improve the storage longevity of wheat in compare to other formulation of DE. Manuscript profile
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  7 - The Effect of Using a Solar MagnetizerWater System on Increasing the Germination of Some Seeds
  Amin Reza Jamshidi Mahdi Mozafari Legha Mohsen Mohseni
  10.30495/qafj.2021.1936489.1006
  In this study, the effect of magnetic field of a magnetic system on seed germination percentage was studied. The device consists of components including: seed tank, device structure, 50-watt solar panel, electronic board of electromagnetic field generator with field int More

  In this study, the effect of magnetic field of a magnetic system on seed germination percentage was studied. The device consists of components including: seed tank, device structure, 50-watt solar panel, electronic board of electromagnetic field generator with field intensity change up to 0.1 Tesla, intelligent electronic charge control board, 14-amp battery, 2-inch inlet and outlet tube Is. To control the magnetic field, two pairs of coils are used, which are wrapped around the passage tube. By installing an intelligent electronic board, the battery charge is controlled. The current from the DC power supply to the windings will produce a non-oscillating magnetic field strength. Seed germination percentage was determined and compared before and after magnetic field formation and magnetic water production. Germination experiment showed that the water from the magnetic field did not have a significant effect on increasing the germination of wheat, canola, alfalfa, tomato and lettuce seeds. However, a significant difference was observed between the germination percentage of cucumber and pumpkin in the isolated sample and the prototype, so that the germination percentage of these seeds increased by 26 and 20.64%, respectively, compared to the primary seeds. Manuscript profile
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  8 - Effects of Culture Medium and Organic Matter on Germination Characteristics of Lemongrass Seeds (Melissa Officinalis L.)
  Shima Rahmanian Abolhossein Aboutalebi Jahromi Mehdi Hoseini Farahi
  10.30495/sarj.2021.683251
  Evaluation of seed germination characteristics is one of the basic and preliminary studies of medicinal plants. The present study was conducted to investigate the effect of culture medium and organic matter on improving the germination characteristics of lemongrass seed More

  Evaluation of seed germination characteristics is one of the basic and preliminary studies of medicinal plants. The present study was conducted to investigate the effect of culture medium and organic matter on improving the germination characteristics of lemongrass seeds as a factorial experiment in a completely randomized design with three replications in Jahrom city. The first factor is the culture medium at three levels (compost, soil and vermicompost, compost + vermicompost and vermicompost + soil at equal ratios) and the second factor was organic matter at three levels (control, effective microorganisms (EM) and humic acid 5mlL-1). Germination percentage, rate and mean daily germination, plant vigor and germination index were measured. The results showed that the effect of culture medium, organic matter and the interaction of culture medium and organic matter on all germination characteristics of lemongrass seeds was significant. Highest germination percentage, germination rate, mean daily germination, vigor index and seed germination index were obtained by using EM. The culture medium containing soil + compost and soil + vermicompost alone had the highest germination traits. The interaction of culture medium and organic matter showed that the highest seed germination percentage of 100% was obtained in soil culture medium + compost using EM. The highest germination rate as well as the highest germination index were observed in soil culture medium containing compost + vermicompost using EM. In order to increase germination and improve the seedling quality of lemongrass, the use of EM and the combination of soil + compost for culture medium is recommended. Manuscript profile
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  9 - Effect of Duration and Composition of Seed Priming on Germination Indices and Yield of Wheat (cv. Mehregan) in Khorramshahr Region (South west of Iran)
  Masomeh Sebti Kamran Mohsenifar
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  10 - Effects of Accelerated Aging and Acid Scarification of Seed Coat with Hydrochloric Acid on Seed Germination Characteristics of Chickpea c.v. Kaka
  R. Sadrabadi Haghighi
  To 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 More

  To 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
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  11 - Allelopathic Effect of Essential Oil of Sweet Bay (Laurus nobilis L.) on Germination and Seedling Vigor of Velvetleaf (Abutilon theopharasti L.) and Field Bindweed (Convolvulus arvensis L.)
  Bahram Mirshekari
  To study allelopatic effect of sweet bay essence concentrations (0, 100, 200, 300 and 400 ppm) on germination and early establishment of velvetleaf and field bindweed an experiment was conducted at Islamic Azad University of Tabriz, Iran, during 2013. Results indicated More

  To study allelopatic effect of sweet bay essence concentrations (0, 100, 200, 300 and 400 ppm) on germination and early establishment of velvetleaf and field bindweed an experiment was conducted at Islamic Azad University of Tabriz, Iran, during 2013. Results indicated that germination percentage of non-treated seeds was 73.3%, and that of treated seeds 64.7%. Plant height at 400 ppm concentration was shorter than other treatments. Mean leaf area per plant of weeds ranged from 13.5 cm2 in control up to 9.7 cm2 in 300 ppm and 400 ppm concertrations. Dry weight per weed plant of the seeds treated with 300 and 400 ppm concentrations was twice lower than of untreated seeds. Vigor index of seedling from seeds treated with 100 and 200 ppm essence and control were 1.5, 1.5 and 2.6 times higher than those treated with 300-400 ppm, respectively. Regression analysis showed that germination percentage, leaf area and dry weight per plant did have higher effect on seedling vigor index. It can be concluded that essential oil of sweet-bay may have potential in controlling weeds, especially in the higher concentrations. Therefor, it could be used in the synthesis of bioherbicides compounds to control weeds. Manuscript profile
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  12 - Effects of seed coating methods on seed germination of Lathyrus sativus in different moisture stress levels and sowing depths
  Mohammadbagher Nahidi hamidreza mehrabi ali ariapoor
  Effects of seed coating methods on seed germination of Lathyrus sativus in different moisture stress levels and sowing depths   Nahidi.Mohamad.Bagher*[1], Mehrabi.Hamid.Reza[2], Ariapoor.Ali[3]     Abstract This research performed in order to consider coa More

  Effects of seed coating methods on seed germination of Lathyrus sativus in different moisture stress levels and sowing depths   Nahidi.Mohamad.Bagher*[1], Mehrabi.Hamid.Reza[2], Ariapoor.Ali[3]     Abstract This research performed in order to consider coating ways of seed on germination power of pasture spicy in Lathyrus sativus and variety condition of humidity tensions and planting depth region Borujerd. This model was carried out on factorial experiment and completely accidental of model shape with three repetitions. Present treatment of soil wetness (dryness tension) used in three levels 9%, 14% and 21%of dry soil weight, planting depth treatment in 2levels of third identical seed diameter and sowing in level and covering treatment in four levels of witness without cover(Nc), material with organic base(Oc) material with Hydrogen base(Hc) and material with mineral base (Cc). Above activities were done by using of different tests like variance analysis and Donken multi scopes test. The results among main impacts of treatments on germination percentage showed that, soil moisture percent and sowing depth bad connection less than hundredth in meaningful level. Connection didn’t observe between seed coating with germination percentage of species plant. Triplicate Reciprocal influences indicate that root length has been more in 21% of moisture level, shallow of deep cultivation and 21percent in moisture level, sowing depth triplicate seed diameter in all covering treatments of seed than to 14% and 9% of moisture levels in surface sowing depth and triplicate of seed diameter. In 9%and14% of moisture levels in surface sowing depth indicate that condition didn’t perform or carried out a little in germination percentage factor.   Key Words: Lathyrus sativus, Germination percentage, Moisture tension, Sowing depth. [1] - corresponding author: master of science at natural science, Boroujerd branch, Islamic Azad university. Email:Mohammadbaghernahidi@gmail.com [2] -Department of Range Management, Borujerd Branch, Islamic Azad University, Borujerd, Iran. [3] -Department of Range Management, Borujerd Branch, Islamic Azad University, Borujerd, Iran Manuscript profile
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  13 - Investigating the effect of various chemical and non-chemical treatments break dormancy galbanum seeds Ferula gummosa Boiss.
  mohammadreza Labbafi Ali Mehrafarin hasanali naghdibadi morteza tavakoli majid ghorbani nahogi
  Ferula gummosa Boiss. is a commercially important medicinal plant that is categorized in endangered herbs list. Seed dormancy and germination is one of the main problems in plant cultivation.This study was conducted to evaluate the effects of chemical, hormonal and ther More

  Ferula gummosa Boiss. is a commercially important medicinal plant that is categorized in endangered herbs list. Seed dormancy and germination is one of the main problems in plant cultivation.This study was conducted to evaluate the effects of chemical, hormonal and thermal treatments on dormancy breaking of galbanum seed, in a completely randomized design (CRD) with 21 treatments in four replications. The percentage and seed germination rate were statistically analyzed. This experiment was done at medicinal plants research center (ACECR) in 2015. Results were showed that the different treatments of seed dormancy breaking had significant (P≤0.01) effect on percentage of seed germination. The highest germination percentage of galbanum seeds observed in combined treatments inclusive of five minutes sulfuric acid (96%) scarification + 30 minutes leaching in water (40˚C) + 7 days imbibition + 40 days stratification + soaking in gibberellic acid (GA3) 1000 ppm. The maximum rate of germination was perceive in combined treatments of 10 minutes sulfuric acid (96%)scarification + 60 minutes leaching in water (40˚C) + 40 days stratification + soaking in GA3 1000 ppm. According to the results,seed germination is improved after sulfuric acid scarification and leaching treatment (physical dormancybreaking), followed by stratification + application of GA3 (morpho-physiological dormancy breaking). Hence, our research offered that galbanum seeds have both physical and morpho-physiological dormancy. Manuscript profile
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  14 - The effect of Pretreatment of Salicylic Acid on Seed Germination, Total Phenol and Antioxidant Activity of Nepeta nuda L. Seedling Under Salt Stress
  Sepideh Mojarab Mohammad Moghaddam Rasoul Narimani
  Seed pretreatment with salicylic acid plays an important role in improving germination and increasing resistance of plants to environmental stresses. Delay in germination, decrease in the rate and percentage of germination are from the effects of salinity stress in germ More

  Seed pretreatment with salicylic acid plays an important role in improving germination and increasing resistance of plants to environmental stresses. Delay in germination, decrease in the rate and percentage of germination are from the effects of salinity stress in germination stage. In order to find out the effects of salinity stress along with salicylic priming on seed germination of Hairless Catmint (Nepeta nuda L.), a factorial experiment based on completely randomized design was conducted using salt stress at four levels (0, 50, 100 and 150 mM), three levels of alleviators (0, 0.2 and 0.5 mM) and three times (6, 12 and 24 hours) with 3 replication at physiology laboratory of Department of Horticulture, Faculty of Agriculture, Ferdowsi University of Mashhad in 2016. Indicators of germination with radicle exit at size 2 mm were evaluated for 21 days. After 21 days and completion of recording of germination indices, the plumules were separated for phytochemical evaluation; and determination of total phenol content and antioxidant activity by spectrophotometric methods were carried out by using methanol extract (extracted in a porcelain mortar), Folin-Ciocalteu method and DPPH free radical scavenging, respectively. According to experiment results, the positive effect of salicylic acid on improving germination of this plant in concentration 0.5 mM was more evident than concentration of 0.2 mM. With increasing salinity, the measured traits were strongly reduced. So that the lowest germination percent and germination rate were 0.81 and 0.02 in 150 mM salt stress, respectively. Salicylic acid is also used as an alleviator to improve germination in different levels of salinity. So that the highest germination percent (25.11) and germination rate (0.62) were obtained from pretreatment with salicylic acid for 24 hours. The highest amount of antioxidant activity (68.92%) and total phenol (1.2 mg.g-1 FW) was related to level of 50 mM stress and the use of salicylic acid at different salinity levels reduced the amount of these traits. In general, although salinity stress markedly reduced germination in Nepeta nuda, but using pretreatment with salicylic acid can significantly improve germination indices in these conditions Manuscript profile
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  15 - Effects of some combined treatments on breaking the seed dormancy and enhancing the germination rate from different Morrocan varieties of date palm
  Oumaima Harkousse Afaf Slimani Issam Jardane Mohamed Aitboulahsen Mouaad Mazri Lahcen Ouahmane Tayeb koussa Mohamed Najib Alfeddy
  10.30495/ijpp.2022.1890426.1193
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  16 - اثرات وابسته به دوز سریا (CeO2) با اندازه نانو بر روی جوانه زنی بذر، رشد اولیه و پارامترهای فیزیولوژیکی گیاهچه همیشه بهار
  صدیقه جهانی سارا سعادتمند ملیحه جهانی هما محمودزاده رمضانعلی خاوری نژاد
  همیشه بهار به عنوان یک گیاه زینتی-دارویی کاربرد فراوانی دارد. برهمکنش بین نانوذرات و سیستم‌های بیولوژیکی یکی از امیدوارکننده‌ترین حوزه‌های تحقیقاتی در علم و فناوری نانومدرن است. محققان جذب نانوذرات اکسید سریم یا سریا (CeO2) توسط گیاهان را گزارش کرده‌اند. هدف از این تحقی More

  همیشه بهار به عنوان یک گیاه زینتی-دارویی کاربرد فراوانی دارد. برهمکنش بین نانوذرات و سیستم‌های بیولوژیکی یکی از امیدوارکننده‌ترین حوزه‌های تحقیقاتی در علم و فناوری نانومدرن است. محققان جذب نانوذرات اکسید سریم یا سریا (CeO2) توسط گیاهان را گزارش کرده‌اند. هدف از این تحقیق بررسی تاثیر نانوسریا بر جوانه‌زنی بذر، ویژگی‌های رشد و بیوشیمیایی گیاهچه 9 روزه همیشه بهار (.Calendula officinalis L) بود. بذرها در پتری‌دیش‌های حاوی هشت غلظت مختلف نانوسریا (0، 0.05، 0.1، 0.2، 0.4، 0.8، 1.6 و 3.2 گرم بر لیتر) جوانه زدند. پس از 9 روز، پارامترهای رشد اولیه و بیوشیمیایی اندازه‌گیری شد. نتایج نشان داد که جوانه‌زنی بذر، وزن تر و خشک گیاهچه و طول ریشه‌چه، ساقه‌چه و گیاهچه در غلظت‌های 0.05 و/ یا 0.1 گرم بر لیتر نانوسریا تحریک شد اما در غلظت‌های بالاتر (پس از 0.2 یا 0.4 گرم بر لیتر) نانوذرات به تاخیر افتاد. محتوای H2O2، مالون‌دی‌آلدئید (MDA) و فعالیت لیپواکسیژناز (LOX) پس از 0.2 گرم بر لیتر نانوسریا افزایش یافت. فعالیت آنزیم‌های آنتی‌اکسیدان و محتوای پروتئین در غلظت‌های بالاتر نانوسریا افزایش یافت. همچنین، فعالیت آنزیم فنیل آلانین آمونیالیاز (PAL)، محتوای فنل و ظرفیت آنتی‌اکسیدانی در 0.8 تا 3.2 گرم بر لیتر نانوسریا تحریک شد. محتوای پرولین در 0.2-3.2 گرم بر لیتر نانوسریا بهبود یافت. در مجموع، نتایج نشان داد که تنش اکسیداتیو القایی نانوسریا با سیستم دفاعی گیاه شامل آنزیم‌های آنتی‌اکسیدان، ترکیبات فنلی و اسمولیت‌های سازگار مانند پرولین همراه بود. این نتایج نشان داد که نانوسریا در غلظت‌های پایین (0.05 و/ یا 0.1 گرم بر لیتر) باعث القای مثبت بر روی جوانه‌زنی بذر و رشد گیاهچه همیشه بهار شد، اما با افزایش غلظت آن (بیشتر از 0.2 گرم بر لیتر)، نتیجه برعکس شد و سمیت نشان داد که گیاه را مجبور کرد تا سیستم‌های دفاعی خود را فعال کند. Manuscript profile
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  17 - Seed Germination Enhancement of Zinnia (Zinnia elegans) Using Electromagnetic Field
  Anoosh Zamiran Vahid Reza Saffari Mohammad Reza Maleki
  The effect of electromagnetic field was examined on Zinnia (Zinnia elegans) seeds to enhance seed germination and early growth. The seeds were exposed to four magnetic strengths of 15, 100, 400 and 800 mT in four durations of 30, 60, 120 and 240 min. The experiments wer More

  The effect of electromagnetic field was examined on Zinnia (Zinnia elegans) seeds to enhance seed germination and early growth. The seeds were exposed to four magnetic strengths of 15, 100, 400 and 800 mT in four durations of 30, 60, 120 and 240 min. The experiments were carried out in two forms of laboratory germination and soil emergence. Results showed that magnetic field application enhanced seed performance in both terms of laboratory germination and soil emergence. The magnetic field significantly (p £0.05) affected root length, shoot length, fresh and dry root weight, fresh and dry shoot weight, seedling length and weight, germination percentage, speed of germination, vigor index I and II in laboratory germination. Also, the magnetic field exposure significantly affected soil emergence factors of root length, shoot length, dry root weight, dry shoot weight, seedling length, emergence percentage and emergence speed at 0.05 level of probability. The other factors were significantly (p £0.05) different compared with unexposed control. No significantly differences were found on the interaction of time and exposure field. The best results were found to 400 mT (micro Tesla) on seed germination and seed emergence. The exposure durations of 240 and 30 min showed promising results over all magnetic fields in seed germination and emergence, respectively. However, there was no significant difference among exposure times. Manuscript profile
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  18 - The alteration of germination percentage and leaf stomatal features of black cumin (Nigella sativa L.) subjected to drought and salinity stresses.
  Shiva Aghajanzadeh Gheshlaghi Maryam Peyvandi Ahmad Majd Hosein Abbaspour
  10.30495/jdb.2021.686359
  Black cumin (Nigella sativa L.) as an herbal plant with high medicinal and economical usage, belongs to Rannunculaceae family. Due to the economic and medicinal importance of this plant and the seriousness of salinity and drought problems in Iran, in this study, the eff More

  Black cumin (Nigella sativa L.) as an herbal plant with high medicinal and economical usage, belongs to Rannunculaceae family. Due to the economic and medicinal importance of this plant and the seriousness of salinity and drought problems in Iran, in this study, the effect of salinity and drought stress on germination percentage and stomatal changes was investigated. The experiment was performed based on completely randomized design with three replications in the pot condition. To create different levels of drought and salinity, two days/ three days of drought and 30, 60 mM NaCl were used respectively. Germination percentage was recorded daily by placing 10 seeds in Petri-dish. Leaf stomata traits were studied using a light microscope two months after treatment. Variance analysis results showed that increasing drought and salinity stress reduced germination percentage. Drought stress also had a greater effect on reducing the size of the pore so that the diameter and the length of the pore showed a significant decrease and the pores were elongated, which shows the effect of dry stress on the closing stomata. Also, high salinity stress (60 mM NaCl) caused a significant increase in pore width and had no significant effect on other stomatal characteristics. The applied drought and salinity stresses did not show a significant increase in the number of stomata. According to the stomatal reaction in different levels of draught stress rather than salinity, it could be indicated the higher sensitivity of this plant to drought treatments. Manuscript profile
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  19 - An efficient method in breaking of dormancy from Bunium luristanicum seeds
  Mohsen Zafaranieh Masoud Ziae
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  20 - The Effects of Different Levels of Salinity on Varieties of Mung Seed Germination in Pot Condition
  MOHSEN SAYYAHI HASSAN ALIREZA SHOKUHFAR
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  21 - 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 Arbat
  In 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 More

  In 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
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  22 - The interaction study of hormonal priming and osmopriming on germination and biochemical indices of sainfoin
  M. ousefi Rad M. Sharif Moghadasi A. Masomi Zavarian M. Asghari M. Nejati
        In order to interaction study hormonal priming and osmopriming on germination and biochemical indices sainfoin, an experiment was conducted as factorial based on randomized completely design with three replication. The first factor was thr More

        In order to interaction study hormonal priming and osmopriming on germination and biochemical indices sainfoin, an experiment was conducted as factorial based on randomized completely design with three replication. The first factor was three levels of non-consumption (control), 100 and 200 mg per liter consuming gibberellins and the second factor was non-consumption (control), consuming 5 and 10% polyethylene glycol. Based on the research results, pre-treatment of seeds with GA increased the percentage and rate of germination, root and shoot length, seedling dry weight, seed vigor, Amylase and peroxidase activity and the protein content. Average comparison results showed that amount of 100 mg per liter GA had the greatest influence. The results also showed that seed pre-treatment with polyethylene glycol (5%) had the best effect on measured traits and level 10% reduction root and shoot length and the protein content. In general, present research showed pre-treatment of sainfoin seeds with 100 mg per liter GA and 5% polyethylene glycol had greatest effect on germination and biochemical. Manuscript profile
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  23 - Effect of seed priming on the germination of forage maize under salt stress
  M. Zadehbagheri SH. Javanmardi M. Kamelmanesh
  Germination 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 More

  Germination 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
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  24 - Effect of storage duration on some germination and vigor indicators of three Wheat cultivars seed in the north of Khuzestan province weather conditions
  Mehri KheshtZar Jafar Ghasemi Ranjbar Aydin Hamidi
  In order to study of the effect of storage duration on some germination and vigor indicators of three wheat cultivars seed in the north of Khuzestan province weather conditions an experiment was conducted at Agriculture and Natural Resources Research and Education cente More

  In order to study of the effect of storage duration on some germination and vigor indicators of three wheat cultivars seed in the north of Khuzestan province weather conditions an experiment was conducted at Agriculture and Natural Resources Research and Education center of Safiabad - Dezful in 2021. Experiment was conducted as factorial based on completely randomized design by four replications. Experiment factors include: four storage durations, 30, 60, 90 and 120 days and three wheat cultivars, Chamran2, Mehregan and Shabrang. Studied traits include: 1000 seed weight, seed germination rete, mean time and energy, normal seedling percent, seed allometric coefficient and vigor index. Results showed cultivar and storage duration interaction affected all studied traits. Shabrang cultivar seeds stored during 30 days had the most 1000 seed weight and the same cultivars seed stored during 120 days had the lowest normal seedling percent. Mehregan cultivars seed stored during 30 days had the most seed germination rete and energy, normal seedling percent, seed allometric coefficient and vigor index and the lowest mean germination time. Based on seed germination and vigor indicators evaluated by this research, studied wheat cultivars seeds were different for storability and in comparison of other studiec cultivars, Mehregan cultivar seeds had better storability behavior at North of Khuzestan province weather conditions. Manuscript profile