Avaliação de densidades de semeadura, nas características da cv. BRSMG Uai, do grupo carioca, no inverno, em Uberlândia-MG

Abstract

The common bean (Phaseolus vulgaris L.) belongs to the Fabaceae botanical family, and has wide genetic and morphological diversity. It is a legume that can be classified as climbing or creeping, produced in all Brazilian regions, cultivated by small, medium and large producers. The common bean has considerable phenotypic plasticity, with the ability to adapt its physiology and morphology according to environmental conditions. This culture represents great importance, not only agriculturally, but also nutritionally, as it is a basic component of the brazilian diet. The great advantage of the culture is that’s possible to harvest three times a year. The presente study aimed to evaluate sowing density, on the performance of the cultivar BRSMG Uai, for five agronomic characteristics, in Uberlândia-MG, in the winter. The experiment was accomplished at the Água Limpa Experimental Farm, owned by the Federal University of Uberlândia, located at geographic coordinates 48º 21’ 04’’ W longitude and 19º 06’ 09’’ S latitude, with an average altitude of 800 meters. The work was conducted in the experimental outlining of randomized blocks, consisting of five treatments, with four replications, with 20 plots total. Each plot consisted of two lines, spaced 0.5 m apart, five meters long, resulting in plots with a total area of 5m2 and 5m2 of useful area. The two cultivated lines were harvested. The sowing densities used were 6, 9, 12, 15 and 18 seeds per linear meter of furrow, to evaluate the performance of the cultivar BRSMG Uai, from the carioca group. This experiment was part of the Phytotechnical Adjustment Trials of Bean Cultivars, a work by Embrapa Arroz e Feijão, in collaboration with the Federal University of Uberlândia. The agronomic characteristics evaluated were number of pods per plant, number of grains per pod, mass of 100 grains (g), productivity (kg ha-1) and number of final plants. The data obtained were subjected to analysis of variance, using the F test and regression analysis, at a 5% probability level. The treatments did not show significant differences for the characteristics, with the exception of the number of final plants.