Mapeamento da qualidade da semente de soja nos processos produtivos de uma unidade de beneficiamento de sementes

Abstract

The Seed Processing Unit plays a crucial role in obtaining high quality seeds, improving the physical and physiological aspects, which therefore helps in maintaining its vigor and germination. However, if the process is not monitored adequately, the seeds initial characteristics can be affected by the presence of impurities, insects and even damage caused during the steps of the process. The objective of this work was to evaluate the possible causes of quality loss in soybean seeds in the processing stages. Thus, for the analyzed cultivar, we collected before and after samples of each piece of equipment, totaling 8 collection points. We realized moisture content tests, purity analysis, tetrazolium, hypochlorite sodium, germination, accelerated aging, weight of a thousand seeds and also the efficiency of the sieves in the standardizer was calculated. To this end, we adopted a completely randomized statistical design, in which the data were compared by analysis of variance and the Tukey test at 5%. Finally, we concluded that processing improves seed quality throughout the stages, and through it, the densimetric table has fundamental performance to improve physical and physiological attributes of the lot. Furthermore, it is extremely important to control the humidity and temperature of the grain mass so that the quality of seed over time is preserved.