Application of Non-Selective Herbicides in the Pre-Harvest of Wheat Damages Seed Quality

作     者：Glauber Moncon Fipke Thomas Newton Martin Ubirajara Russi Nunes Evandro Ademir Deak Jessica Deolinda Leivas Stecca Jose Eduardo Minussi Winck Luiz Fernando Teleken Grando Anderson da Costa Rossato 

作者机构：Post-Graduation Program in Agronomy at Department of Plant ScienceFederal University of Santa MariaSanta MariaBrazil Department of Plant ScienceFederal University of Santa MariaSanta MariaBrazil Laboratory of Seed Research and TeachingFederal University of Santa MariaSanta MariaBrazil Field Technical ManagerSementes Lanes Ltda.Sao GabrielBrazil Federal University of Santa MariaSanta MariaBrazil 

出 版 物：《American Journal of Plant Sciences》 (美国植物学期刊（英文）)

年 卷 期：2018年第9卷第1期

页      面：107-123页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：the Higher-Level Personnel Improvement Coordination(Capes-Brazil)for the scholarship provided The National Council for Scientific and Technological Development(CNPq) 

主　　题：Glufosinate-Ammonium Glyphosate Paraquat Triticum aestivum(L) 

摘      要：Pre-harvest desiccation in order to minimize the time of exposure to abiotic factors after physiological maturity is a practice used in the production of quality seeds. The aim of this work was to evaluate the physical, physiological and sanitary quality of wheat seeds from plants that received non-selective herbicide application at pre-harvest. For this, the treatments were applied on pre-harvest culture. A completely randomized design was applied. We use the herbicides (glufosinate-ammonium, glyphosate and paraquat), phenological stages of herbicide application (Z-83, Z-85, Z-87, Z-92) and additional treatment (without application). The routine tests that express the physical, physiological and sanitary integrity of seeds were evaluated. For herbicide treatments, there was an 8% and 26% reduction in germination under laboratory conditions for BRS Parrudo and Sinuelo, respectively. Soil emergence was 14% higher for the control treatment, not statistically different for the Z-87 and Z-92 stages and also for the herbicides glufosinate-ammonium and glyphosate for both cultivars. The application of non-selective herbicides on wheat pre-harvest impairs the physical and physiological quality and promotes faster deterioration. Vigor is reduced under stress conditions by cold test and accelerated aging. There is no influence on seed sanity.