PRODUÇÃO E QUALIDADE DE SEMENTES DE FEIJÃO-COMUM POR MEIO DA APLICAÇÃO DE BIOESTIMULANTE

Abstract

The bean (Phaseolus vulgaris L), is a legume of great economic importance for agribusiness, being used in Brazil and worldwide. It is one of the main sources of protein in human nutrition, in addition to being an excellent alternative for crop rotation, using the area in the same crop year and, in turn, having a high market value. Based on the social and economic importance of beans, it is extremely important to seek alternatives to increase the quality and production of seeds, however, to achieve high yields, all essential nutrients must be adequately supplied in quantity and ideal stage of development As a result, the use of biostimulants in seed treatment has shown good productivity results, as the biostimulant provides a better increase in final production, which results in greater root development, and consequently a more efficient absorption of water and nutrients, resulting in in well-developed seedlings and better and faster initial stand establishment. Given the above, the objective of this work was the effect of seed treatment with biostimulant, on the initial development, germination and physiological performance of common bean. The work was carried out at the IF Goiano – Campus Iporá and the SPAD Index was evaluated; Number of pods per plant; Maximum technical efficiency dose (MET); Germination; Seedling emergence in the field; Length and total dry mass of seedlings. The experimental design was carried out by a regression analysis, and the means were submitted to the tukey test with 5% significance. The results of the analysis of variance showed that the interaction between cultivar factors x Speed Adavantage® doses (C x A) was significant for the chlorophyll SPAD index variables at 1, 7 and 14 days after seedling emergence (DAA) and a thousand grain mass. For the analysis of seed quality, the results obtained through the analysis of the variables showed that the interaction between cultivar factors x Speed Adavantage® rates (C x A) was significant for the variables seedling emergence and seedling dry mass. The application of Speed Advantage® biostimulant positively influenced the yield components of the common bean cultivars BRS Esplendor and BRS Estilo. The average dose of maximum technical efficiency for the variables related to seed quality was 497 ml/ha-1. The maximum productivity (kg/ha-1) was obtained with the dose of 380 ml/ha-1.