نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی تولید و ژنتیک گیاهی. دانشکده کشاورزی و منابع طبیعی. دانشگاه محقق اردبیلی. اردبیل. ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Disruption in the photosynthetic system is one of the reasons of reducing in plant gowth. Measuring the fluorescence of chlorophyll a is one of the methods of investigating these disorders, which shows the photochemical qualification of the plant. In order to study the effect of the combination of salicylic acid (SA) with mesosulfuron methyl + iodosulfuron methyl herbicide on the physiological behavior of wild oat, a factorial experiment was conducted in a completely randomized design with four replications, in the greenhouse of the Faculty of Agiculture and Natural Resources of Mohaghegh Ardabili University in 2020. The results showed a decrease in maximum fluorescence (Fm) and maximum quantum yield of primary photochemistry (Fv/Fm) and an increase in minimum fluorescence (Fo). The fresh and dry weight of wild oat decreased in all treatments except the control treatment (no herbicide) and the chlorophyll index slowly reduced one days after herbicide application compared to the control treatment. According to the obtained results, all concentrations of herbicide reduced the dry weight of wild oat by more than 40%, and the usage of salicylic acid did not affect the effectiveness of herbicide in controlling of the mentioned weed.
کلیدواژهها [English]
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