Qualidade e avarias em grãos de soja produzida na região Norte de Mato Grosso

Abstract

The soybean harvest season in the North of Mato Grosso coincides with the rainy season, which can cause several damages to the grains with quality depreciation and affect lower commercial value. For this reason, the objective was to evaluate qualitative aspects of 85 soybean samples, produced in Sinop and Alta Floresta in the 2019/20 harvest. The samples of different cultivars, in the amount of 2 kg each, were obtained in two agricultural research centers, being 39 samples in Sinop and 46 in Alta Floresta. The cultivation was carried out according to technical indications for the culture in the region. The samples were collected manually and mechanically threshed. After cleaning and preparation, laboratory evaluations were carried out to quantify the water content by the standard oven method; mass of a thousand grains according to the methodology described in Brasil (2009) and commercial classification according to IN no. %b.u.) and better quality. Soybean grown in Sinop showed a higher incidence of burning, mold and greening due to high volumes of rain at harvest, in addition to the lower accumulation of mass in the grains.