Análise de trilha em genótipos de Milho verde submetido a inoculação de Azospirillum brasilense.

Abstract

The yield of the green corn crop is a character influenced by many variables, so that the identification of traits that present a greater contribution to yield becomes important and can help in the selection of superior genotypes of economic interest. The objective of this work was to analyze the productivity components of the green maize crop, submitted to seed treatment with Azospirillum brasilense. The experiment was conducted in the 2019/20 season at the experimental station of the Federal University of Tocantins, campus of Gurupi – TO. A randomized complete block design was used, with 3 replications, in a 2 x 10 factorial scheme, totaling 20 treatments. The first factor was constituted by the use of treated seeds in the management with and without A. brasilense, the second factor refers to the ten commercial corn cultivars. The studies used path analysis with estimates of direct and indirect effects involving the main variable (PESP), and explanatory (NGPF, NFE, CESP, DESP, AP and AE), for the ten corn genotypes tested. The variables NGPF, DESP, CESP and AE have the highest direct effect indices on PESP in maize genotypes under experimental conditions, and are the most suitable for indirect selection for yield. Keywords: Breeding, Zea mays, Productivity.