Qualidade fisiológica de sementes de soja em diferentes épocas de colheita no sul do estado de Tocantins
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2003-04-28
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Revista Ceres
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Corn o intuito de avaliar o efeito da retardamento da caiheita na qualidade fisiológica das sementes de soja, foi conduzido urn experimento em Gurupi–TO. 0 delineamento experimental utilizado foi o de blocos casualizados, corn cinco repetiOes. Us tratamentos foram dispostos no esquema fatorial 3 x 4, constituidos poor tits cultivares de soja (Conquista, M-SOY I06 e M-SOY 108) e quatro 6pocas tie colheita (R8, R8+7, R8+14 e R 8+2 1 di as ) As sementes foram avaliadas pela qualidade visual, peso de •I{)0 sementes, teste de germinação, emergencia em areia e peso da materia sera das piântulas. Corn o retardamento da culheita, ficou constatada a diminuiçäo progressiva na germinaçAo e no vigor em todos os cultivares. Os cultivates NI-soy zoo e M-SOY 1.08 apresentaram melhor qualidade fisiológica das sementes, em relaÇao ao cultivar Conquista. # Glycine max; cultivates; retardamento de colheita;
This work was carried out to evaluate the effect of delayed harvest on the physiological quality of soybean seeds in Gurupi, TO. The experiment was a randomized complete-block design, with twelve treatments and five replications. The treatments were arranged in a 3 x 4 factorial scheme, consisting of three cultivars (M-SOY 106, M-SOY 108 and Conquista) and four harvest times (R8, R8 + 7, R8 + 14 and R8 + 21 days). Physiological quality of the seeds was determined by visual quality, 100 seed weight, sand emergence, germination test, and seedling dry matter weight. Reduced germination and vigor were observed with harvest delay in all the cultivars. M-SOY 106 and M-SOY 108 presented the best seed physiological quality.
This work was carried out to evaluate the effect of delayed harvest on the physiological quality of soybean seeds in Gurupi, TO. The experiment was a randomized complete-block design, with twelve treatments and five replications. The treatments were arranged in a 3 x 4 factorial scheme, consisting of three cultivars (M-SOY 106, M-SOY 108 and Conquista) and four harvest times (R8, R8 + 7, R8 + 14 and R8 + 21 days). Physiological quality of the seeds was determined by visual quality, 100 seed weight, sand emergence, germination test, and seedling dry matter weight. Reduced germination and vigor were observed with harvest delay in all the cultivars. M-SOY 106 and M-SOY 108 presented the best seed physiological quality.
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Glycine max, Cultivares, Retardamento de colheita