Fatores associados à perda de qualidade na produção de sementes de soja na região de Planaltina-DF

Abstract

The aim of this study was to evaluate the main factors associated with the loss of quality of soybean seeds in three consecutive seasons. Was developed in the Quality Laboratory at DuPont Pioneer (Unit. Research and Improvement), were used 20 lots soybeans each year. Samples were taken and sent to the unit, through the beneficiation process. The tests were: purity, germination, tetrazolium (vigor and viability) and accelerated aging. We analyzed 20 lots per year (2013/2014, 2014/2015 and 2015/2016) with two screens and calculated averages and ranges (upper and lower limit) observing vigor and seed viability. We can see that the quality of seeds vary with climate, variety, year, production and storage. Factors that directly influence the physical and physiological quality of seeds