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

• 作者: Anderson da Costa Rossato Glauber Mon?on Fipke Jessica Deolinda Leivas Stecca José Eduardo Minussi Winck Luiz Fernando Teleken Grando Thomas Newton Martin Ubirajara Russi Nunes vandro Ademir Deak
• 来源期刊: 美国植物学期刊(英文)
• 学科: 医学
• 关键词: Glufosinate-Ammonium GLYPHOSATE PARAQUAT Triticum AESTIVUM (L)
• 年，卷（期）: 2018,（1）
• 页码范围: 107-123
• 页数: 17页
• 分类号: R73

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.