نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه زراعت و اصلاح نباتات -دانشکده کشاورزی- دانشگاه صنعتی شاهرود-شاهرود-ایران
2 عضو هیات علمی گروه زراعت، دانشکده کشاورزی،دانشگاه صنعتی شاهرود،شاهرود
3 عضو هیئت علمی گروه زراعت و اصلاح نباتات -دانشکده کشاورزی- دانشگاه صنعتی شاهرود-شاهرود-ایران
4 عضو هیئت علمی گروه زراعت و اصلاح نباتات -دانشکده کشاورزی ،دانشگاه صنعتی شاهرود- شاهرود-ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Water deficiency is an effective method to optimize water consumption, particularly in arid and semi-arid regions, making it a highly desirable approach for reducing water use. Additionally, growth regulators can serve as a supplementary strategy for plants under water deficiency conditions. This research evaluated the effects of yeast extract and 24-epibrasinolide under various irrigation conditions. It was conducted as a factorial split-plot experiment based on a randomized complete block design with three replications. The treatments included different irrigation intervals (8, 12, and 16 days), spraying of yeast extract (0 and 12 g/L), 24-epibrassinolide (0, 5, and 10 μM). During the 12 and 16-day irrigation periods, seed yield decreased by 21.80% and 25.61%, respectively, compared to the 8-day irrigation period. However, foliar spraying with 10 μM 24-epibrassinolide and yeast extract increased seed yield by 10.14% and 20.28%, respectively. Additionally, total chlorophyll content decreased by 15.71% and 47.54% during the 12 and 16-day irrigation periods compared to the 8 days. The application of 10 μM 24-epibrassinolide along with yeast extract increased chlorophyll content by 57.69%. In the 16-day irrigation cycle, the activities of ascorbate peroxidase and catalase enzymes increased by 314.63% and 194.73%, respectively, using 10 μM brassinolide and yeast extract. Additionally, the levels of proline, flavonoid, and malondialdehyde increased by 52.85%, 109.89%, and 96.33%, respectively, compared to the 8-day irrigation period. This research demonstrated that applying 12 g per liter of yeast extract combined with 10 μM brassinolide effectively increases seed yield and mitigates the impact of low irrigation in cowpeas
کلیدواژه‌ها [English]
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