ASPECTO PRODUTIVO DA CULTURA DO FEIJOEIRO SOB DIFERENTES LÂMINAS VIA PIVÔ CENTRAL

Abstract

Rational irrigation management requires specific knowledge, especially in terms of water application efficiency. The experiment was carried out in the research area of Goiano Federal Institute - Campus Ceres, located at latitude 15°21'0.51"S, longitude 49°35'55.10"O and altitude of 600m, in a central pivot with a total area of 5.36 ha, in the years 2015 and 2016. The objective was to evaluate the productive performance of two bean cultivars, BRS Estilo and IPR Uirapuru, irrigated through central pivot, under four irrigation slides, differentiated by the percentage of crop evapotranspiration, managed by the class A tank method. A completely randomized design was used, in subdivided plots, with four replications. In the plots the effects of the four irrigation levels (35, 70, 105 and 140% of the daily Evapotranspiration of the culture managed by the tank method class A - TCA) were evaluated, as well as the bean cultivars (BRS Estilo and IPR Uirapuru) in the subplots. Grain yield, plant height, number of pods per plant, pod length, number of grains per pod and weight of 1000 grains were evaluated for two cycles. The results were analyzed through the Tukey test, at 5% probability and through regression analysis. All characteristics analyzed were significantly influenced by the differentiation of the irrigation slides, and the slides of 92% and 107.5% were those that showed the highest productivity for the years 2015 and 2016, respectively. The cultivar IPR Uirapuru presented superior productivity in relation to BRS Estilo in both years of study.