INFLUÊNCIA DO ARMAZENAMENTO NA QUALIDADE DA SEMENTE DE SOJA

Abstract

The quality of the seed is directly linked to the success of the crop, since the morphological and physiological quality of the seed results in satisfactory development in the early stages of the cultivar. The aim of this study was to assess the impact of storage on soybean seed quality. The study was carried out on the premises of the company Sementes Goiás, located in the municipality of Rio Verde - GO. The germination test was carried out with eight replicates of 50 seeds, totaling 400 seeds. The test followed the specifications set out in the Rules for Seed Analysis (RAS). For tetrazolium viability for batch 1, the values verified were: seed arriving at the warehouse (95%), viability in the middle of the year (90%) and near delivery (93%), while for batch 2, the values verified were: seed arriving at the warehouse (95%), 93% in the middle of the year and 83% near delivery. For the germination viability of batch 1, the values ranged from 98% when the seed arrived at the warehouse to 94% after six months in storage, so there was little variation from when the material arrived until it left. In batch 2, the values ranged from 94% when the seed arrived at the warehouse to 88% when it left for planting. In relation to the tests carried out in this study, the lowest percentages found for both tetrazolium viability and germination were found in the third battery of batch 2, with values of below 90%.