Épocas de semeadura e de colheita e desempenho de sementes de soja no armazenamento.

Abstract

The objective of this work was to analyze the results from the internal quality control of a soybean production company, to identify the recommended times for sowing and harvest, aiming at the preservation of seed quality during storage. Data analysis was carried out at Agro Santa Rosa SA, located in the municipality of Hernandárias, Paraguay, with information collected in six harvests, being 2009/2010, 2010/2011, 2011/2012, 2012/2013, 2013/2014, 2014/2015. Seeds of four soybean cultivars, called AAA, FFF, ABB, CBC, were used for this study, using the results of sand germination in three different phases of the process, with samples of the seeds collected in silos at the time of And prior to delivery to the customer. It was verified that the seeds harvested in the months of April and May presented superior quality at the moment of distribution to the customers (from the second fortnight of August), in relation to the seeds of the harvests held in February, March and June.