نوع مقاله : علوم علف‌های هرز
نویسندگان
1 دانشجوی کارشناسی ارشد اگروتکنولوژی گرایش علوم علف‌های هرز ، گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه بوعلی سینا،
2 دانشیار گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران
3 استادیار گروه گیاه‌پزشکی، دانشکده کشاورزی، دانشگاه لرستان، خرم‌آباد، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
To investigate the binary mixing behavior of triflusulfuron-methyl, chloridazone, and clopyralid on common purslane, three experiments were separately conducted in an outdoor condition at Bu-Ali Sina University, Hamadan in the summer of 2023. In each experiment, 0, 6.25, 12.5, 25, 50, and 100% of the labeled dose of the two herbicides were prepared in the mixture ratios of (100:0), (80:20), (60:40), (40:60), (20:80), and (0:100) and applied at the 4-5 leaf stage of common purslane. The mixability of the herbicides was evaluated using an appropriate isobole model, after fitting a suitable isobole model (based on a lack-of-fit test), on the ED50 values (herbicide rate required to control 50% of common purslane) obtained from different mixture ratios. The good fit of the linear Additive Dose model on the ED50 values obtained from different mixture ratios of chloridazone + triflusulfuron-methyl indicates an additive effect between them; therefore, they are mixable. The good fit of the nonlinear Hewlett model on the ED50 values obtained from different mixture ratios of clopyralid + triflusulfuron-methyl (λ = 1.66) indicates a synergistic effect between them; therefore, they are also mixable. While the good fit of the nonlinear Woelund model on the ED50 values obtained from different mixture ratios of clopyralid + chloridazone (η1 = 1.7 and η2 = 3.8) indicates an antagonistic interaction between them; therefore, they are not mixable.
کلیدواژه‌ها [English]
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