Improvement of Photosynthesis and Photosynthetic Productivity of Winter Wheat by Cold Plasma Treatment under Haze Condition
محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 21، شماره: 7
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 39
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شناسه ملی سند علمی:
JR_JASTMO-21-7_018
تاریخ نمایه سازی: 23 آبان 1402
چکیده مقاله:
Haze stress has various destructive physical, chemical and physiological effects on the plants. Cold plasma treatment is recognized as a suitable technology to improve germination efficiency of numerous seeds. This study was carried out to evaluate the effect of cold plasma in order to reduce harmful effects of haze on winter wheat (Pishgam cultivar) in the greenhouse. Seeds of wheat were treated with cold air plasma at ۵۰W during different time intervals of ۶۰, ۱۲۰, ۱۸۰ and ۲۴۰ seconds. In the greenhouse, simulation of haze stress with concentration of ۱۵۰۰ μg m-۳ was performed at ۱۳, ۴۹, ۶۱ and ۶۹ Zadoks scales at agricultural research greenhouse of Tarbiat Modares University. Effects of plasma treatments on quality and quantity of wheat were determined by the rate of photosynthesis, leaf stomatal density, size of stomata, intercellular CO۲ concentration, transpiration rate, chlorophyll content, Relative Water Content (RWC), stomatal conductance, spike yield, and grain yield. Results indicated a significant difference among plasma treatments and the control. Plasma treatment in ۱۸۰ seconds ameliorated photosynthesis rate, chlorophyll content, and stomatal conductance by ۳۴, ۳۲, and ۹۳%, respectively, compared with the control. In response to haze stress in plasma treatments at ۱۸۰s plasma treatment, grain and spike yield were increased by ۵۸ and ۷۵%, respectively, compared with the control plants. The results showed that plasma treatments reduced damage of haze stress on winter wheat.
کلیدواژه ها:
نویسندگان
M. Saberi
Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
M. A. Modarres Sanavy
Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
R. Zare
Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization, Tehran, Islamic Republic of Iran.
H. Ghomi
Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Islamic Republic of Iran.
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