عنوان مقاله [English]
نویسندگان [English]چکیده [English]
To evaluate the effect of airborne dust on the efficacy of herbicides in different wheat verities a field experiment was conducted at Research farm of Razi University, Kermanshah in 2013. The evaluated treatments were using herbicides Atlantis (mesosulfuron-methyl+Iodosulfuron-methyl+Mefenpyr-diethyl), Chevalier (Mesosulfuron-methyl+ Iodosulfuron-methyl sodium)and Othello (Mesosulfuron-methyl+ Iodosulfuron-methyl sodium+ Diflufenican), washed and unwashed shoots, various wheat varieties Pishgam, Zarin and Behrang. The experimental design was a randomized complete block in which treatments were arranged as factorial with three replications. Results of this study showed that the presence of airborne dust on weed surfaces reduced the efficacy of Chevalier so that washing the shoots of treated weed species increased Chevalier performance significantly. Totally, Atlantis had the highest effect on wheat grain yield regardless of washing and not washing weed shoots while it efficacy was not affected by presence of dust. In general, airborne dusts diminished wheat grain yield.