List of Articles عملکرد کوانتومی

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  1 - The Role of Salicylic Acid in Improving the Photosynthetic System of Soybean (Glycin max L.) Genotypes under Drought Stress
  Nasrin Razmi Ali Ebadi Jahanfar Daneeshian Soodabe Jahanbakhsh
  10.30495/jcep.2019.669702
  To investigate the effect of salicylic acid on photosynthetic system and seed yield in soybean genotypes under drought stress a factorial experiment was conducted in a completely randomized design in both greenhouse and laboratory of Mohaghegh Ardebili University in 201 More

  To investigate the effect of salicylic acid on photosynthetic system and seed yield in soybean genotypes under drought stress a factorial experiment was conducted in a completely randomized design in both greenhouse and laboratory of Mohaghegh Ardebili University in 2015. The factors consisted of water stress at 3 levels (85, 65 and 45% of field capacity), salicylic acid at 3 concentrations (0, 0.4 and 0.8 mM) and three soybean genotypes, Williams, D42X19, and L17. The results showed that the relative water content, stomatal conductance, chlorophyll a and b, chlorophyll a/b ratio, leaf area, maximum fluorescence and quantum yield decreased as the result to drought stress, while Williams showed more tolerance to drought stress as compared to other two genotypes. Application of 0.4 mM salicylic acid as compared to high concentration (0.8 mM) and control was the most effective treatment on reducing the adverse effects of drought stress. It could be said that this may increase the relative water and chlorophylls contents, leaf area, quantum yield and stomatal conductance under drought stress conditions. It seems that carotenoid contents as a result of drought stress and application of 0.8 mM salicylic acid were increased in soybean genotypes, especially in L17. SLA was also increased due to drought stress, which was higher in L17 genotype than other genotypes. According to the results of this study, williams genotype was the most tolerant to drought stress as compared to the other genotypes, and the application of salicylic acid would enhance tolerance to drought stress in soybean genotypes. Manuscript profile
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  2 - Leaf Gas Exchange, Yield and Yield Components of Wheat (Triticum aestivum L.) Cultivars as Affected by Plant Density
  Reza Hosseinipour Seyyed Alireza Valadabady Mohammad Reza Mehrvar Saeed Sayfzadeh
  10.30495/jcep.2019.669714
  Determination of optimal plant density is one of the main factors that may affect crop growth and seed yield when planting is performed in the plant residues especially in conservation tillage systems. To investigate the effect of plant density on leaf gas exchange of w More

  Determination of optimal plant density is one of the main factors that may affect crop growth and seed yield when planting is performed in the plant residues especially in conservation tillage systems. To investigate the effect of plant density on leaf gas exchange of wheat cultivars, a field split plot experiment based on randomized complete blocks design with three replications was carried out at Karaj Research Farm of Seed and Plant Improvement Institute in Iran. In this study, the main factor was three levels at plant densities (400, 500 and 600 seed per m2) assigned to main plots and five wheat cultivars (Sivand, Sirvan, Pishtaz, Pishgam and Parsi) to sub-plots. Results of analysis of variance showed that transpiration rate (E) (p<0.05), stomatal conductance (Gs) (p<0.01), net photosynthetic rate (Pn) (p<0.01) and Quantum yield (Qy) (p<0.01), number of grain per spike (GPS), seed weight (SW), seed yield (SY), biological yield (BY) and harvest index (HI) were affected by plant density and cultivar significantly. In addition, interaction effect of plant density×cultivar was significant on leaf temperature (LT) (p<0.01), intercellular CO2 concentration (Ci) (p<0.05) and biological yield (BY) (p<0.01). The results also indicated that increment of plant densities of 400 to 600 seed per m2 decreased E, Gs, Pn and Qy. Increasing plant density decreased GPS and HI. The Pishgam cultivar had the highest E and Gs, while higher values of Pn, Qy and water use efficiency belonged to Parsi cultivar. The highest value of SY was obtained from Sirvan cultivar. Manuscript profile
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  3 - 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
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• Open Access Article
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  4 - 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
  Manuscript profile