Qualidade física e fisiológica de semente de soja colhida com sistema de trilha axial sob diferentes velocidades de operação e rotações do cilindro trilhador
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Data
2006-08-01
Autores
Vieira, Bruno G. T. L. [UNESP]
Silva, Rouverson P. da [UNESP]
Vieira, Roberval Daiton [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Associação Brasileira de Engenharia Agrícola (SBEA)
Resumo
A colheita mecanizada é ferramenta fundamental no processo produtivo das grandes culturas; se não for realizada adequadamente, poderá resultar em danos mecânicos severos às sementes, acarretando, prejuízos significativos na colheita, particularmente devido à redução da qualidade. Visando a avaliar os danos causados na colheita mecanizada de soja, o presente trabalho teve como objetivo estudar o efeito do sistema de trilha axial sobre a percentagem de bandinhas, impurezas e sementes quebradas de soja cv. M-Soy 8001, em função da velocidade de trabalho e rotação do cilindro trilhador. O delineamento experimental utilizado foi o inteiramente casualizado, em parcelas subdivididas, avaliando-se duas rotações do cilindro trilhador (400 e 500 rpm) e três velocidades de operação (3,5; 4,5 e 5,5 km h-1), com três repetições. Os resultados obtidos indicam que as combinações de velocidade de operação e rotações do cilindro de trilha avaliadas não afetam as variáveis vigor, impurezas, bandinha, emergência em areia e índice de velocidade de germinação e que o aumento da rotação de 400 para 500 rpm ocasiona o aumento de sementes quebradas.
The mechanical harvest is an important tool in the productive process of grain crops. For the soybean crop, if not used appropriately, it can result in severe mechanical damages to the seed, caring out significant damages to the crop, especially on seed quality. In order to evaluate the damages caused by mechanical soybean harvesting, the purpose of the present research was to study the effect of the system of axial trail on the bands percentage, the amount of MOG (other material different from the grain) and broken seeds of soybean (cv. M-soy 8001), in function of the speed of work and rotation of the threshing cylinder. The experimental design was completely randomized in split plot, being evaluated two threshing cylinder rotations (400 and 500 rpm), three operation speeds (3.5; 4.5 and 5.5 km h-1) with three replications. The results obtained showed that the combination of speed operations and rotation of threshing cylinder evaluated, did not affect the seed vigor, impurity, bands, sand emergence and germination speed index and that increasing the rotation of the 400 to 500 rpm broken seeds were bigger.
The mechanical harvest is an important tool in the productive process of grain crops. For the soybean crop, if not used appropriately, it can result in severe mechanical damages to the seed, caring out significant damages to the crop, especially on seed quality. In order to evaluate the damages caused by mechanical soybean harvesting, the purpose of the present research was to study the effect of the system of axial trail on the bands percentage, the amount of MOG (other material different from the grain) and broken seeds of soybean (cv. M-soy 8001), in function of the speed of work and rotation of the threshing cylinder. The experimental design was completely randomized in split plot, being evaluated two threshing cylinder rotations (400 and 500 rpm), three operation speeds (3.5; 4.5 and 5.5 km h-1) with three replications. The results obtained showed that the combination of speed operations and rotation of threshing cylinder evaluated, did not affect the seed vigor, impurity, bands, sand emergence and germination speed index and that increasing the rotation of the 400 to 500 rpm broken seeds were bigger.
Descrição
Palavras-chave
Harvesting losses, Vigor, Quality, Perdas na colheita, Vigor, qualidade
Como citar
Engenharia Agrícola. Associação Brasileira de Engenharia Agrícola, v. 26, n. 2, p. 478-482, 2006.