AS SEMENTES ESVERDEADAS DE SOJA E OS ASPECTOS DE PERDA DE QUALIDADE FISIOLÓGICA

Abstract

The physiological quality of soybean seeds can be affected by several factors. Currently, the formation of greenish seeds, mainly in the Cerrado region, has attracted the attention of the seed industry. This characteristic has been responsible for reducing the longevity of seeds and directly affecting the loss of germination and vigor. However, there is little information about the characteristics of the deterioration process that are changed. Therefore, the objective of this work was to identify aspects of deterioration that are affected in greenish soybean seeds. To conduct the work, three soybean cultivars that have high potential in the region were used. The seed lots were initially separated into greenish seeds and yellow seeds. Each subsample was evaluated for water content, germination, first count, electrical conductivity, accelerated aging, field emergence and seedling length. It was possible to observe lower vigor and viability for greenish seeds compared to yellow ones. He concluded that one of the main factors in reducing the vigor of greenish seeds is the lower tolerance to stress.