Effect of drought-induced stress by PEG۶۰۰۰ on physiological and morphological traits of chickpea (Cicer arietinum L.) seed germination in order to assortment of drought tolerant cultivars
Publish place: Plant Process and Function، Vol: 11، Issue: 52
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: Persian
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شناسه ملی سند علمی:
JR_JISPP-11-52_001
تاریخ نمایه سازی: 28 اسفند 1401
Abstract:
In this study, the reaction of germination and plantlet growth different chickpea cultivars (Arman, Azad, Binalood and Hashem) in relation to osmotic stress due to polyethylene glycol solution (-۲, -۴, -۶ and -۸bar) and control (distilled water) using factorial design in completely randomized with four replications was evaluated. In this study, there was a significant difference between the different potentials of drought stress for all measured traits with ۹۹% probability. With the reduction of water potential, the seed germination, germination rate, rootlet length, stemlet length, rootlet wet weight, rootlet dry weight, stemlet wet weight, stemlet dry weight, plantlet wet weight, as well as plantlet dry weight decreased. Also, proline and Fv/Fm (the efficiency quantum of the photosystem II) of cultivars at two levels of control and glycol polyethylene solution at the level of -۲bar was different. So that the Hashem cultivar showed the highest amount of proline in the polyethylene glycol solution -۲bar. However, the Fv/Fm had a reversed relationship with drought stress. That is, drought stress leads to a reduction in the Fv/Fm. The maximum amount of Fv/Fm was found in the Hashem cultivar under drought stress condition, and the lowest amount in Azad cultivar in stress conditions. The results of activity of antioxidant enzymes in this study showed that drought-resistant cultivars such as Hashem is to drought stress by increasing the capacity of the antioxidant system to remove reactive oxygen species and prevent membrane peroxidation Overall, the commercial cultivar Hashem showed drought tolerance at high stress levels, indicating their potential for production applications.
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Authors
Seyed Hassan Masomi
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
Ali Imani
Temperate Fruit Research Center, Horticultural Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
Saeed Seyfzade
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
Seyed Ali Reza valadabady
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
Hamid Reza Zakerin
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
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