American Journal of Plant Sciences

Volume 9, Issue 1 (January 2018)

ISSN Print: 2158-2742   ISSN Online: 2158-2750

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

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DOI: 10.4236/ajps.2018.91010    538 Downloads   962 Views   Citations


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.

Cite this paper

Monçon Fipke, G. , Martin, T. , Nunes, U. , Deak, v. , Leivas Stecca, J. , Minussi Winck, J. , Teleken Grando, L. and da Costa Rossato, A. (2018) Application of Non-Selective Herbicides in the Pre-Harvest of Wheat Damages Seed Quality. American Journal of Plant Sciences, 9, 107-123. doi: 10.4236/ajps.2018.91010.

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