Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/49811
Title: Análise quantitativa e econômica do tratamento de sementes para o controle da antracnose em soja
Other Titles: Quantitative and economic analysis of seed treatment for the control of anthracnosis in soybean
Authors: Machado, José da Cruz
Dias, Iara Eleutéria
Machado, José da Cruz
Barrocas, Ellen Noly
Souza, Jorge Teodoro de
Keywords: Soja - Antracnose
Tratamento químico de sementes
Fungicidas
Colletotrichum truncatum
Soybean - Anthracnose
Chemical seed treatment
Fungicides
Issue Date: 27-Apr-2022
Publisher: Universidade Federal de Lavras
Citation: GONTIJO, G. F. Análise quantitativa e econômica do tratamento de sementes para o controle da antracnose em soja. 2022. 42 p. Dissertação (Mestrado em Agronomia/Fitopatologia) – Universidade Federal de Lavras, Lavras, 2022.
Abstract: The application of fungicides on seeds and on developing plants in fields is currently a management strategy widely used in soybean, aiming to combat diseases that can cause significant losses to this crop. Despite the proven effectiveness in disease control, the use of chemical pesticides can result in negative consequences for the environment, in addition to increasing the cost of crop production, making it desirable to reduce the amount of products used in the field. This study aimed to evaluate the effectiveness of chemical seed treatment in combination with post-planting applications of fungicides as a viable alternative for the control of Colletotrichum truncatum associated with seeds, aiming to reduce the unnecessary use of fungicide sprays on soybean in the field. For the test, eight treatments were used, all composed of seeds contaminated with C. truncatum, in a 2 x 4 scheme (2 seed treatments and 4 sprays). The experiment was carried out until the time of harvest, evaluating stands, height and weight of plants, number of pods, weight of one thousand grains, grain yield, disease index, health of harvested seeds and economic viability of the system. The chemical treatment of seeds was effective in reducing the incidence of C. truncatum in soybean seeds and provided an increase in the values of stands, plant height and weight, and grain yield, causing a decrease in the disease/damage index and in the pathogen incidence in harvested seeds. Seed treatment resulted in higher revenue for the evaluated systems, proving to be an economical and effective alternative to a greater number of fungicide sprays on plants in the field.
URI: http://repositorio.ufla.br/jspui/handle/1/49811
Appears in Collections:Agronomia/Fitopatologia - Mestrado (Dissertações)



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