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Open Access Article
1 - القا تغییرات در رشد و فیزیولوژی گیاه ریحان در اثر بکارگیری سلنیوم و متیونین
مهرانا عسگری زهرا اوراقی اردبیلی -
Open Access Article
2 - The effect of foliar feeding of iron, zinc and manganese nanochelates on chlorophyll fluorescence, iron, zinc and manganese concentration in seeds and soybean yield
Mohammad Saeed VagharObjective: Dehydration stress disrupts the balance of absorption and transfer of micronutrients from roots to aerial organs and is a serious threat to agricultural products. This experiment was conducted to investigate the effect of iron, zinc and manganese nano chelate MoreObjective: Dehydration stress disrupts the balance of absorption and transfer of micronutrients from roots to aerial organs and is a serious threat to agricultural products. This experiment was conducted to investigate the effect of iron, zinc and manganese nano chelate spraying on chlorophyll index, chlorophyll fluorescence, concentration of iron, zinc and manganese elements in seeds and their relationship with soybean yield.Materials and methods: The experiment was carried out in the form of a split plot, in the form of a completely randomized block design with three repetitions in two consecutive years. The main factor of the irrigation regime in the main plot includes stopping irrigation at the stage of flowering, podding, seed filling and full irrigation and the secondary factor of spraying with distilled water (control), iron, zinc, manganese, iron + zinc, iron + manganese, zinc + manganese. And iron + zinc + manganese were in sub-plots.Findings: Drought stress significantly reduced grain yield, which was the largest reduction in podding stage (31.4% reduction compared to the control). The lowest and highest amount of chlorophyll fluorescence was obtained due to stress in the stage of podding and full irrigation. Iron and iron + zinc treatments had the highest chlorophyll fluorescence and chlorophyll index, respectively. The control treatment had the highest and the stress treatment had the lowest concentration of iron, zinc and manganese in the seed during the podding stage.Conclusion: Fertilization of iron, zinc and manganese nanochelates in water deficit conditions is a practical method to reduce chlorophyll fluorescence, increase the content of micronutrients in seeds and seed yield. The combined treatment of iron + zinc was the best treatment. Manuscript profile -
Open Access Article
3 - The study of the response of some physiological characteristics and grain yield of Purslane (Portulaca Oleracea L.) cultivars to drought stress and foliar application of chelated nano iron
nafiseh mahdi nezhad hamideh jamalpour barat ali fakheri hameideh azadIn order to study the effect of foliar application of chelated nano iron and drought stress on physiological changes and grain yield of purslane cultivars, an experiment was conducted as split plot factorial randomized complete block design with three replications in Ah MoreIn order to study the effect of foliar application of chelated nano iron and drought stress on physiological changes and grain yield of purslane cultivars, an experiment was conducted as split plot factorial randomized complete block design with three replications in Ahar Agricultural Research and Natural Resources Station during 2015. The experimental factors included drought stress levels, 90 (control), 70, and 50 field capacity, two levels of chelated nano iron, 0 (control) and 1 lit.hr, and two cultivars (Tehran and Kazeron). Results showed that foliar application of nano iron under drought stress had a significant effect on some traits, so that the highest content of chlorophyll b (4.47 mg/g leaf tissue) was recorded under normal irrigation and foliar application of nano iron chelated, the highest sodium concentration (38.87%) was obtained from 50% filed capacity and non foliar application of chelated nano iron, and the highest potassium content (87.68%) was obtained under drought stress conditions of 50% filed capacity and foliar application of chelated nano iron. Considering the significance of interaction effects, the highest amount of proline (1.22 mg/g fresh weight), soluble sugar (96.92 mg/g fresh weight), and iron (1.11%) was obtained from Kazeron cultivar under drought conditions, 50% filed capacity by non foliar application of chelated nano iron. The highest amounts of chlorophyll a (6.99 mg/g of leaf tissue), carotenoids (1.67 mg/100 ml), and anthocyanins (0.017 mg/100 ml) were recorded by foliar application of chelated nano iron in Kazeron cultivar under normal irrigation. Also under stress conditions, the use of chelated nano iron compared to control increased the grain yield by 32.66% and Kazeron cultivar was superior to Tehran cultivar, so that the seed grain yield of Kazeron was 1.31 more than that of Tehran. Manuscript profile -
Open Access Article
4 - Effect of citral and geranial foliar application on quantity and quality of secondary metabolites of Lippia citriodora Kunth.
Hassan NourafcanBiotransformation is the process of converting an inert precursor into the medicinally valuable product. In this research, a pot experiment was conducted to evaluate the effect of artificial citral and geranial spraying in concentrations of 100, 200, 300, 400 and 500 pp MoreBiotransformation is the process of converting an inert precursor into the medicinally valuable product. In this research, a pot experiment was conducted to evaluate the effect of artificial citral and geranial spraying in concentrations of 100, 200, 300, 400 and 500 ppm, besides distilled water and without spraying (control) on essential oils quality and quantity of lemon verbena with in greenhouse conditions at Islamic Azad University – Miyaneh Branch, Iran in 2015. The first foliar application was done when the plantlets reached the height of 25. The second and the third spraying were done with 7 and 14 days span after the first spraying respectively. One week after the last spraying, lemon verbena leaves were harvested. The essential oils were extracted from the leaves by hydro distillation method by using Clevenger apparatus. Citral and geranial especially in low concentrations (100 ppm) and distilled water spraying had positive effect in essential oils yield. The chemical composition of essential oils was analyzed by GC and GC-MS methods. On the whole, 21 components were identified and the most important components were limonene, geranial and neral. Citral and geranial spraying especially in high concentrations increased limonene content and the highest limonene content was in geranial 500 ppm and citral 400 ppm in the amount of 28.24 and 24.54%, respectively. Also, the lowest limonene content was 17.83% in control. However, citral and geranial spraying had not positive effect on neral and geranial content. Manuscript profile -
Open Access Article
5 - Evaluation of quantity and quality of Linum usitatissimum L. fatty acids under the influence of boric acid, salicylic acid, and urea foliar application during the day
mahtab pouyanfar Naser Mohebalipour Hassan Nourafcan Ali FaramarziLinum usitatissimum L. is one of the most important oilseed crops in the world and moreover, its oil is a valuable source of essential fatty acids composed of omega-3 such as alpha-linolenic acid. This plant is sensitive to fertilizer that is poured near the stem. There MoreLinum usitatissimum L. is one of the most important oilseed crops in the world and moreover, its oil is a valuable source of essential fatty acids composed of omega-3 such as alpha-linolenic acid. This plant is sensitive to fertilizer that is poured near the stem. Therefore, foliar application of nutrients is used as an efficient method with a major impact on the growth, quantity and quality of active ingredients in this product. This factorial experiment was performed based on a randomized complete block design with three replications in the Medicinal Plants Research Farm of Islamic Azad University, Miyaneh Branch, during 2019 to assess the effect of foliar application of different concentrations of boric acid, salicylic acid and urea at different hours of the day on increasing the quantity and quality of essential fatty acids. Treatments were applied at ten-day intervals in three periods after the beginning of flowering and the final harvest was performed to extract the oil with N-hexane solvent after capsule maturity. The percentage of fatty acid profile of flaxseed oil were determined using GC and GC-MS connected to mass spectrometer. Based on the results, the foliar application 50 mg/l salicylic acid on the percentage of alpha-linolenic acid and 3 liters of boric acid on linoleic acid after sunset, and 100 mg/l salicylic acid on eicosadienoic acid before sunrise and 5 g/l urea on palmitoleic acid after sunset were effective. Therefore, a combination of environmental effects on the plant before and during foliar application and plant physiology during and after uptake determines the effect of foliar application. Manuscript profile -
Open Access Article
6 - Changes in essential oil content/composition and morpho-physiological traits of Damask rose affected by nano-potassium and nano-iron chelated
milad heydari Hassan Nourafcan Naser NazariTo study the effect of nano-chelated iron and potassium foliar spraying on quality and quantity of damask rose essential oil and morpho-physiological characteristics, an experiment was conducted based on randomized complete block design in 2018 at Medicinal Plant Resear MoreTo study the effect of nano-chelated iron and potassium foliar spraying on quality and quantity of damask rose essential oil and morpho-physiological characteristics, an experiment was conducted based on randomized complete block design in 2018 at Medicinal Plant Research Farm of Islamic Azad University, Miyaneh Branch. One year after the complete establishment of damask rose and during the blooming stage, plants were sprayed three times at intervals of 10 days by 0.5, 1 and 1.5 g/L nano chelated iron and potassium. The traits evaluated in this experiment were leaf fresh and dry weights, flower fresh weight, leaf length and width, chlorophyll content, flower and receptacle diameter, petal number, plant height, essential oil quantity and quality. Application of nano-chelated iron increased the leaf fresh and dry weights. The highest and the lowest percentages of essential oil were observed in nano-chelated potassium at 1 g/L (0.2%) and nano-chelated potassium at 1.5 g/L (0.06%), respectively. 18 combinations were identified in essential oil of damask rose and the highest components were determined in citronellol, geraniol, tricosane, nonadecane and henicosane. The citronellol (27.3%) and geraniol (14.17%) was obtained from nano-chelated potassium at 1 gr/L and highest nonadecane (3.12%) and tricosane (21.17%) was obtained from nano-chelated iron at 1.5 g/L. The highest amount of henicosane (21.53%) was obtained in control treatment. Therefore, nano-chelated potassium at 1 g/L. can be used to give the highest essential oil yield and extraction of citronelol and geraniol, which are one of the most important economic compounds in damask rose. Manuscript profile -
Open Access Article
7 - The effect of methanol and ethanol foliar application on peppermint morpho-physiological traits
Hassan Nourafcan Zahra KalantariUsing of substances such as ethanol and methanol can be considered as a way to improve plants yield helping carbon dioxide fixation increment. The effect of methanol and ethanol spraying on growth and essential oils of peppermint has been studied in field conditions bas MoreUsing of substances such as ethanol and methanol can be considered as a way to improve plants yield helping carbon dioxide fixation increment. The effect of methanol and ethanol spraying on growth and essential oils of peppermint has been studied in field conditions based on randomized complete block design with 10 treatments including spraying with 10, 20, 30 and 40% methanol and ethanol, distilled water and no spraying.There was an enhancingeffect of ethanol and methanol spraying on most of studied traits.Methanol had positive effect on leaf number, longest lateral branch length and leaf width. Also, ethanol increased essential oils content, shoot fresh and dry weight and lateral shoot number. In general, the best treatments effecting on plant traits were ethanol 20 and 30% and methanol 10 and 30%. The highest essential oils content was observed at 10% of methanol 10 – 30% of ethanol. To foliar improvement, 30% of methanol was the most suitable treatment. Therefore,with economic and availability considerations, methanol would be recommendable formore essential oils contentachievement. Also, for the best peppermint business performance, 30% methanol could be applicable. Manuscript profile -
Open Access Article
8 - Savory morphophysological traits affected by methanol and ethanol foliar application
Hassan Nourafcan Mahtab PouyanfarSavory (Satureja hortensis L.) has various applications in traditional medicine. Alcohol spraying on plants foliage is considered as one of the new methods for improvement of their growth and yield. In current study, the effect of methanol and ethanol spraying on morpho MoreSavory (Satureja hortensis L.) has various applications in traditional medicine. Alcohol spraying on plants foliage is considered as one of the new methods for improvement of their growth and yield. In current study, the effect of methanol and ethanol spraying on morphological and physiological traits of savory has been studied in pot conditions based on completely randomized design with 10 treatments including spray concentrations of 10, 20, 30 and 40% (v/v) methanol and ethanol, distilled water and no spraying. Ethanol and methanol spraying specially in 40% concentration could be improving in most of studied traits. Ethanol 40% had a positive role in increasing of leaf dry and fresh weight, crown diameter, plant and stem fresh weight and methanol 40% was effective in plant and shoot dry weight, plant height and leaf number improvement. Increasing in alcohol concentrations caused chlorophyll content increment, but not leaf length. Also, spraying with distilled water and methanol caused more crown distance to first node; but less canopy width. Therefore, implementation of methanol and ethanol solutions is recommending increasing growth and growth indices of savory. Manuscript profile -
Open Access Article
9 - The effect of methanol and ethanol foliar application on essential oil composition of peppermint
Hassan Nourafcan Zahra Kalantari Fatemeh SefidkonMentha spp. are the main source of menthol essential oils. Medicinal plants sprayed with alcohols such as methanol and ethanol may cause vegetative growth and secondary metabolites improvement. The current study was carried out to evaluate ethanol and methanol foliar ap MoreMentha spp. are the main source of menthol essential oils. Medicinal plants sprayed with alcohols such as methanol and ethanol may cause vegetative growth and secondary metabolites improvement. The current study was carried out to evaluate ethanol and methanol foliar application efficiency on peppermint essential oils composition at Medicinal Plant Research Farm of Islamic Azad University, Miyaneh Branch based on randomized complete block design. One month aged peppermint plantlets were sprayed by 10, 20, 30 and 40% (v/v) ethanol and methanol aqueous solutions repeated twice two and four weeks after. The plants were harvested in flowering stage and their essential oils were extracted using hydro-distillation. The essential oils composition was specified using GC and GC-MS techniques. All phytochemicals in peppermint essential oils were significantly affected by hydroalcoholic solutions application but transpulegol, cis-pulegol, menthyl acetate, e-caryophyllene, α-himochalene and germacrene D. Plants sprayed by upper than 10% hydroalcohol solutions contained more menthol, significantly. Moreover, menthol amount was in higher values in the case of methanol application than ethanol. However, most of phytochemicals of peppermint were effectively promoted using ethanol 30%. Also, menthone and isomenthone negatively affected by methanol spraying in peppermint. Therefore, considering current research findings, methanol spraying is recommending to increase peppermint essence quality. Manuscript profile -
Open Access Article
10 - The effect of salicylic acid foliar spraying on morphophysiological characteristics of common mallow and Moldavian balm
Hassan Nourafcan Afsaneh MahboubiSalicylic acid has an important role in some plant physiological processes as a plant growth regulator. In current study, the effect of salicylic acid on morphological and physiological traits of common mallow and Moldavian balm was studied based on completely randomize MoreSalicylic acid has an important role in some plant physiological processes as a plant growth regulator. In current study, the effect of salicylic acid on morphological and physiological traits of common mallow and Moldavian balm was studied based on completely randomized block design in farm condition at Bostanabad county, Iran. Plantlets were sprayed by 0, 150 and 300 mg/L salicylic acid two month after planting and two weeks after. In flowering stage, the plant height, stem, root and internode length, leaf, root and lateral roots number, dry and fresh weight of stem, root and leaf, dry matter percentage of root, stem and leaf and also chlorophyll content were recorded. Salicylic acid spraying improved all common mallow traits but root number and length. In Moldavian balm, salicylic acid application increased all traits. However, it decreased root and stem dry matter percentage and had no effect on root number and length. Also, 300 mg/L of salicylic acid was more effective than 150 mg/L in common mallow traits except dry leaf weight and root dry matter percentage and in Moldavian balm expect length internode. Thus, foliar spraying of salicylic acid can be recommended for as a simple and economical method for yield and growth indices improvement of common mallow and Moldavian balm. Manuscript profile
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