Avaliação agronômica de genótipos de feijoeiro comum, do grupo roxo, no inverno, em Uberlândia - MG

Abstract

The Intermediate Test of common bean (Phaseolus vulgaris) is provided by the structure of the national network for the evaluation of lineages generated in the breeding program of Embrapa, carrying out a preliminary evaluation, which allows the selection of the most promising genotypes, candidates to become new cultivars, as it seeks the selection of better genotypes, with higher yields, resistance to diseases and adaptation to different environments, to advance them to VCU. In order to evaluate agronomic characteristics of common bean genotypes of the purple group, the experiment was conducted in the winter of 2016, in the city of Uberlândia. In the period from June 10, 2016 to September 22, 2016, an Intermediate Test was carried out at the Experimental Água Limpa Farm belonging to the Federal University of Uberlândia, evaluating 13 genotypes of common bean (Phaseolus vulgaris), provided by Embrapa Rice and Beans. The experimental design was a randomized complete block design with 3 replicates, consisting of 13 treatments, composed of common bean genotypes of the group, in a total of 39 plots, where each experimental plot consisted of four lines of 4 m in length , spaced 0.5 m apart and planting density of 15 seeds per meter. The total area of ​​each plot was 8.0 m2, but only the two central lines were considered useful to carry out the evaluations, being collected and analyzed. The other lines of the plot were considered bordering. The number of pods per plant, the number of grains per pod, the mass of 100 grains and the yield were evaluated in the winter season in the Municipality of Uberlândia - MG, aiming at the future indication of new strains for producing regions. The results showed that the genotypes showed no significant differences between them for the characteristic pods per plant. For the grains per pod trait only the genotypes CNFRx 16360 and CNFRx 16346 were significantly lower than the BRS Pitanga control, while for the 100 grains mass the genotypes CNFRx 16360 and CNFRx 16353 were significantly superior to the others. In yield, the genotypes did not present significant differences among them, although the CNFRx 16353 presented an increase of 30.9% more than the control.