Qualidade de sementes de soja tratadas e submetidas ao armazenamento

Abstract

Seed treatment is a common practice in agriculture. However, the industrial treatment (TSI) or seed on farm may imply positively or negatively when coupled with storage of seeds, which will later be sown in the field. The objective of the present work was to analyze the impact of soybean seed treatment in pre and post-storage (0 and 120 days), with a combination of fungicides, insecticides, micronutrients, polymer and powder-drier. For that, a 5x2 factorial design was carried out in a completely randomized design, with 4 replicates, where 10 treatments: a) control 1; b) treated; c) treated + stored; d) control 2; e) stored + treated; differing from each other by the time they received or not the application of the set of products set were used. Seeds of the variety NS 6909IPRO and of the variety P 95R51 were used and compared, being evaluated the following parameters: germination, vigor by accelerated aging test and electrical conductivity. The data were submitted to analysis of variance and comparison of means by the Sisvar program. It was possible to observe that the lot of the P95R51 cultivar was superior to NS6909IPRO in the standard germination test. The chemical coating of the seeds together with the storage generally resulted in a lower germination rate. The NS6909IPRO batch presented lower vigor when stored without the application of the product set.