Aspectos de qualidade de sementes de soja: [Glicine max (L.) Merril].

Abstract

Soybean cultivation (Glycine max (L.) Merrill) is of great economic and social importance, being one of the main commodities exported by Brazil. Cultivation requires specific environmental conditions to achieve maximum productivity. Obtaining a satisfactory crop depends on the use of high quality seeds, the evaluation of which is crucial to the success of the agricultural enterprise. The objective of this work was to evaluate different batches of soybean seeds based on physiological quality and vigor tests. 10 lots of soybean seeds were used, identified as lots 100, 101, 110, 118, 120, 131, 144, 207, 336 and 447, obtained through collaboration with a commercial company, from Uruçuí - Piauí. Germination, accelerated aging and tetrazolium tests were carried out. The design used in the experiment was completely randomized (DIC). The physiological tests consisted of ten lots, four replications of fifty seeds. The evaluated lots presented satisfactory physiological quality conditions, storage resistance and germination capacity, with vigor levels and were classified as medium and high quality seeds. Therefore, evaluating the physiological quality of soybean seeds is essential for increasing productivity.