ATRIBUTOS DE INTERESSE AGRONÔMICO DA SOJA SOB UM OLHAR DE AGRUPAMENTOS HIERÁRQUICOS E TENDÊNCIAS LINEARES MULTIVARIADAS

Abstract

Plant arrangement influences the genetic attributes of genotypes such as cycle, height and lodging index. Given the above, the aim of this work was to study the groupings and correlations between different soybean genotypes. The study was carried out in the city of Campo Alegre de Goiás-GO. The soil was classified as Neosol Quartzarênico, under the no-tillage system. The experimental design used was randomized blocks, with 13 treatments, corresponding to the following soybean genotypes: 5G685, AF7503, Bonus, BRS+A1: K87470, BRS7570, BRS7470, CG7665, Desafio, DS5916, Foco, M7739, SYN13610 and SYN15640, with 4 repetitions. At the end of the experiment, the data obtained were submitted to the assumptions of the statistical model, verifying the normality and homogeneity of residual variances, as well as the model's additivity. The analysis of variance revealed significance by the F test for all analyzed variables. The variables that had the highest phenotypic correlations for vegetables with one grain, vegetables with two grains, number of grains per plant had the highest yield. Through grouping and phenotypic correlations it was possible to verify that the genotype selected for high grain yield and adaptability was CG7665.