Effects of Iodosulfuron Methyl-sodium Plus Mesosulfuron-methyl and Tribenuron Methyl Plus Clodinafop Propargyl Mixed by Fenitrotion and Librel BMX Micronutrient Solution on Wheat Growth

Document Type : Research Article

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Abstract

Greenhouse experiment was conducted to assess the response of wheat to tank mixture of herbicides with insecticide and manure in Ferdowsi University of Mashhad, Iran. The experiment consisted of 8 treatments: 1- tribenuron methyl (15-20 g ha-1) + clodinafop propargyl (0.8 L ha-1) 2- tribenuron methyl + clodinafop propargyl + fenitrotion (1.2 L ha-1) + librel (1 Kg ha-1) 3- tribenuron methyl + clodinafop propargyl + fenitrotion 4- tribenuron methyl + clodinafop propargyl plus librel 5- iodosulfuron + mesosulfuron 6- iodosulfuron + mesosulfuron + fenitrotion + librel 7- iodosulfuron + mesosulfuron + fenitrotion 8- iodosulfuron + mesosulfuron + librel and 9- untreated control. The layout was a completely randomized design with 4 replications. The combinations were applied in tillering stage. On the base of our results combination of iodosulfuron methyl-sodium plus mesosulfuron-methyl, or plus fenitrotion, or plus librel, and iodosulfuron methyl-sodium plus mesosulfuron-methyl, or plus fenitrotion caused the most reduction in wheat height by 20% and 15%, leaf area by 44% and 39%, leaf fresh weight by 40% and 38%, shoot fresh weight by 36% and 32%, leaf dry weight by 30% and 25% and shoot dry weight by 37% and 29%, respectively. Combination of tribenuron methyl plus clodinafop propargyl, or plus fenitrotion, or plus librel, and tribenuron methyl plus clodinafop propargyl, or plus fenitrotion reduced leaf area, fresh weight and dry weight of wheat plants, but this reduction was not as much as previous mixture. Mixture of two herbicides with librel showed no damaging effect on wheat plants.
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