Qualidade de sementes de soja avaliadas pelo teste de tetrazólio: estudo de caso na empresa Dimicron

Abstract

This study aimed to survey the physiological quality of soybean seeds, S1 and S2 categories analyzed in LABORATORY analysis of seeds of Dimicron Chemistry of Brazil Ltda., Using the tetrazolium test to characterize the features physiological: feasibility, force, mechanical damage, moisture damage, bedbugs for damages, loss of viability of the causes of force classification, relate highest level of seed vigor for work, we collected data from the analysis of crops 2008/2009, 2009/2010, 2010/2011 and 2011/2012, referring to the information obtained from tetrazolium tests applied in samples of seed lots of S1 and S2 categories that were analyzed. We examined the results of 481 lots, with 309 lots category S1 and S2 172 lots category. The parameters used to evaluate the physiological quality of seeds were: viability (TZ 1-5), vigor (TZ 1-3), mechanical damage (TZ 1-8), moisture damage (TZ 1-8), damages for bug (TZ 1-8). The results showed that: The highest percentages of lots of high vigor were obtained for crop years 2008/2009 and 2009/2010, for both seed classes. Mechanical damage and humidity are the most frequent in soybean seeds.