Initial growth characterization of bean genotypes (Phaseolus vulgaris L.) cultivated in lowland soil

Abstract

The objective was to evaluate the initial performance of the bean genotypes grown in lowland soil in the State of Rio Grande do Sul. The experiment was conducted in the 2015/2016 agricultural harvest, in a chapel greenhouse, arranged in the North-South direction, covered with polycarbonate and equipped with temperature controllers, located under the coordinates 31º 52'00 " South latitude and 52º 21'00 "west longitude with an altitude of 13 meters, this structure is located at the Federal University of Pelotas. The experiment was carried out in a randomized block design with five bean genotypes (IPR Tuiuiú, Carioca, Mouro, BRS Guabiju and BRS Embaixador) and four initial collection periods (9 DAS, 13 DAS, 17 DAS and 21 DAS), arranged in five replicates. The different bean genotypes reveal dissimilar initial growth rates in the face of the adversities imposed by lowland soils. The BRS Guabiju genotype is superior to the others for initial growth and is more acclimatized to the soils of the extreme south of Rio Grande do Sul.