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International Journal of Horticultural Science and Technology، جلد ۴، شماره ۱، صفحات ۲۹-۵۰
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عنوان انگلیسی Effect of Salicylic Acid Application on Oxidative Damage and Antioxidant Activity of Grape (Vitis vinifera L.) Under Drought Stress Condition
چکیده انگلیسی مقاله Adaptation and defense responses are the consequences of exposure to drought stress in plants. Salicylic acid (SA) as a natural signaling molecule poses a significant impacts on various aspects of plant growth and development. This study investigates the effects of SA on carotenoids content, lipid peroxidation rate and antioxidant enzymes activities. A pot experiment was conducted using a factorial pattern based on a randomized complete block design with three replications under greenhouse conditions. The variables in the experiment included grapevine cultivars ('Rasheh' and 'Bidane Sefid'), irrigation periods (5, 10 and 15 day intervals) and SA concentrations (0, 1 and 2 mM). Results showed that with increasing the drought stress levels, increase in carotenoids, malondialdehyde (MDA) contents, catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase (GPX) enzymes activities were detected. Carotenoids content, catalase (CAT) and ascorbate peroxidase (APX) and guaiacol peroxidase (GPX) enzymes activities were higher in the Rasheh cultivar compared with the 'Bidane Sefid' cultivar. Carotenoids content, CAT, APX and GPX enzymes activities increased by application of salicylic acid. . According to the obtained results, the Rasha cultivar showed a greater tolerance to water stress in comparison with Bidane Sefid cultivar, suggesting that SA is capable of   inducing drought stress  tolerance in plants.
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نویسندگان مقاله Nasser Abbaspour |
Associate professor, Department of Biology, Faculty of Sciences, Urmia University, Urmia, West Azarbaijan, Iran.

Lavin Babaee |
MSc. Student, Department of Horticultural Sciences, Faculty of Agriculture, Urmia University, Urmia.

نشانی اینترنتی https://ijhst.ut.ac.ir/article_65930_af1c92d1264bc94c1843941fe4fc2672.pdf
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