Common bean genotypes under water stress

The objective of the work was to study the adaptation of common bean genotypes to water deficit. Forty-nine genotypes were evaluated in a randomized block design, with three replications, in experiments with and without water deficit, conducted at the Experimental Station of SEAGRO, in Porangatu-GO during 2006 and 2007. Multivariable analysis was applied using de Ward's method and the genotypes were divided in four groups based on the average grain yield of each water treatment, during the two years of the experimentation. The genotypes BRA 130583 CIAT G 6490 and FT 84 - 292 were classified as the most productive in the absence or under water deficit, while the genotypes BRA 283983 CIAT G 6492, BRA 129721 CIAT G 6896, and G 983 were classified as productive in the absence of water deficit, but they were more sensitive to this stress. It was also verified that the number of pods per plant was the most sensitive agronomic component to water deficit in common bean.