نوع مقاله : مقاله پژوهشی
نویسندگان
1 استاد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی و منابع طبیعی دانشگاه محقق اردبیلی
2 گروه تولید و ژنتیک گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی. اردبیل، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
experiment was carried out as factorial based on randomized complete block design with three replications in 2024. Factors experimental were included irrigation at three levels (full irrigation as control, irrigation withholding at 50% of booting stage as severe water limitation and irrigation withholding at 50% heading as moderate water limitation) and silicon and selenium foliar application (foliar application with water as control, 6 mg.L-1 selenium, 60 mg. L-1 nanosilicon, both foliar application selenium and silicon). The results showed that under irrigation withholding at booting stage, there were an increase about 49, 97 and 34.5% in malondialdehyde and hydrogen peroxide contents and soluble sugars respectively, in comparison with full irrigation. But, under severe water limitation condition, both application of selnium and silicon were able to decrease malondialdehyde (65%) and hydrogen peroxide (78%) contents and increasd soluble sugars (62%) content in comparison with no application of them under the same level of irrigation levels. Means comparision showed that under severe water limitation, both application of selnium and silicon were able to decrease electrical conductivity (40%), whereas chlorophyll b content (28%), the activities of polyphenol oxidase peroxidase enzymes (40 and 13.8%, respectively), proline content (31.2%) and grain yield (44.6%) increased in comparison with no application of these elements in the same level of irrigation levels. Based on the results of this study, it can be suggested that application of selenium and silicon were able to increase grain yield of wheat under water limitation by improving compatible osmolytes and antioxidant enzymes activity
کلیدواژه‌ها [English]
)