ارزیابی حساسیت گیاه زراعی به بقایای علف¬کش تری¬بنورون متیل (گرانستار)

نقوی, سمیه and مهدی زاده, محمد and آل ابراهیم, محمد تقی and فخاری, رسول ارزیابی حساسیت گیاه زراعی به بقایای علف¬کش تری¬بنورون متیل (گرانستار). In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

In order to evaluate the sensitivity of different crops to the tribenuron methyl herbicide residues in agricultural soil, an experiment was conducted in research greenhouse of Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili during 2019. In this study, a completely randomized design with factorial arrangment and four replications was carried out. The susceptibility of 4 crops including corn, chickpea, cotton and oilseed rape to tribenuron methyl herbicide residues was investigated at Initial intervals after germination days after herbicide application. 30 days after emergence of the seedlings, stem and root biomass of crops were studied and measured. To analyze the results of the experiment, analysis of variance of data, the response of the tested crops to the residues of herbicide through the fitting of the biomass data to the 3 and 4 parametric equations were calculated. The results showed that oilseed rape was the most sensitive crops to tribenoron methyl residues during the various time intervals after herbicide application. According to the results, we can classify the crops according to their sensitivity to herbicide residues as wheat (the most sensitive) ˂ oilseed rape ˂ cotton ˂ pea ˂ corn (most tolerant). Based on the results, it seems that due to the difference in the reaction of crops to residues of tribenuron methyl, it is possible to use this important factor in the elaboration of a crop rotation program and management of this herbicide residues.

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