ANÁLISE DE ESTABELECIMENTO DA CULTURA DA SOJA EM FASE INICIAL

Abstract

Soybean seed treatment has been widely adopted. These, in addition to allowing the germination of infected seeds, control pathogens transmitted by seeds and protect seeds from soil fungi. Faced with searches for answers that improve soybean plant development, the objective of this work was to analyze the multivariate explanation on the establishment of the initial growth pattern of soybeans via seed treatment. The study was conducted at the Experimental Farm Luiz Eduardo de Oliveira Sales, in the municipality of Mineiros-GO. The soil in the experimental area was classified as NEOSSOLO Quartzarenico. The experimental design used was in randomized blocks in a 10x5 factorial corresponding to 10 soybean genotypes (Flecha, Bonus, TEC7548, M7739, 36B31, W791, M7198, M6210, Power and 48B32) and 5 seed treatments (Water, Sprint-Alga , Booster, Wake up and Stimulate), in 4 repetitions. The data obtained were submitted to the assumptions of the statistical model, verifying the normality and homogeneity of the residual variances, as well as the additivity of the model. Afterwards, analysis of variance was carried out in order to identify the interaction between soybean genotypes x seed treatment, applying univariate and multivariate tests. The summary analysis of variance revealed a significant interaction between cultivar x seed treatment. The genotypes were more expressive in seed treatments with Booster, followed by Sprint-Alga, Stimulate and Acorda, in that order. According to the data, the multivariate explanation on the establishment of the initial soybean growth pattern via seed treatment is promising.