Caracterização da qualidade fisiológica de lotes de sementes de soja produzidas em Mato Grosso do Sul

Abstract

The study of characterization of seed lots aims to evaluate and record the largest possible number of quality attributes that identifies the difference between seed lots. The objective of this work was to characterize the attributes of physiological quality, through germination and vigor tests 14 lots of soybean seeds (Glycine max) produced in Mato Grosso do Sul and from the 2017/2018 harvest. The experiments were carried out at the Seed Technology Laboratory of the Faculty of Agricultural Sciences (FCA), of the Federal University of Grande Dourados (UFGD), in Dourados-MS. Germination and accelerated aging tests were carried out in four repetitions with 50 seeds each, and seedling length and mass tests with four repetitions containing 20 seeds each. The completely randomized design was analyzed and the results were analyzed by analyzing the variation with the statistical software GENES. Despite the fact that all lots presented similar results regarding germination, it was found that the lots have characteristics with respect to vigor. Lot 13 of soybean seed seeds had the best results in relation to all the evaluated characteristics and was considered to have superior physiological quality in relation to the other lots obtained.