Recobrimento de sementes de algodão e milho com produtos químicos e polímeros

Abstract

The technology of seed coating seed with the use of polymers has as main objective to improve the performance of seeds in relation to the physical, physiological and healthy. In this context, the objective of this study was to determine: 1) Physiological quality of cotton seeds treated with fungicide, insecticide, safener and polymers, 2) retention of dust in treated cotton and corn seeds, 3) Phytotoxicity on cotton plants in relation Gamit the herbicide, 4) plantability corn seed treated with insecticide, fungicide, graphite and film coating, 5) Leaching of products applied to corn seeds coated with film coating. The physiological quality tests were conducted on 200 seeds; The seed plantability was determined by counting faults and double; The dust was determined using glass fiber paper in mg.100g-1 seeds; analysis of phytotoxicity was evaluated in wet conditions after planting, leaching was determined by collecting leachate material in a bed of sand 10 cm after irrigation.The results allowed the following conclusions: 1) The physiological quality of seeds is not affected by the application of polymers, 2) The application of polymer assists in the protection of cotton seeds on the phytotoxicity of herbicide, 3) seeds coated with film coating reduces dust formation in seeds, 4) seeds coated by film coating minimizes leaching of insecticide for seed treatment; 5 ) There are differences in effectiveness between a polymer of the same company.