Recobrimento de sementes de brachiaria com bioestimulante e complexo nutricional

Abstract

Seed treatment in the broad sense is the application of processes and substances that preserve or refine the performance of seeds, allowing all cultures to express their genetic potential. It includes the application of pesticides (fungicides, insecticides), biological products, inoculants, stimulants, micronutrients, etc. The objective of this work was to evaluate the effects of products available for the treatment of forage seeds of five genotypes of brachiaria. The work was conducted in two environments, experimental area and field, each in a factorial scheme A x B, with factor A being five brachiaria seed genotypes (BI, BII, BIII, BIV e BV) and factor B different chemical seed treatments (TQA; TQB; TQC; TQD e TQE) which involve a combination of products Maxim XL®, Cruiser 350 FS®, Stimulate® and Cellerate®. Evaluations were made in relation to seedling emergence, the establishment of plants and dry matter production of shoot and roots. It has concluded that the products used in seed coating in this experiment can delay the initial seedling emergence, but do not interfere with the final seedling emergence result. Inside each genotype, some seed´s coating treatment determine the weight of dry matter of the shoot and the weight of dry matter of roots superior to the seeds without coating (TQE) at 48 days after sowing (experimental area environment). In the field environment, there was no difference in this evaluation (102 days after sowing).