Adaptabilidade e estabilidade de genótipos de feijoeiro-comum com grãos tipo carioca na Região Central do Brasil

The aim of this work was to test different methods to identify carioca grain type common bean (Phaseolus vulgaris) genotypes with high adaptability and yield stability for central Brazil. Forty five production trials were carried out with 16 genotypes, in randomized complete block designs with three replications, in the states Goias, Mato Grosso, Mato Grosso do Sul, Tocantins, and the Distrito Federal, in 2003 and 2004. The grain yield data were submitted to analysis of variance and to analysis of stability and adaptability using the methods of Lin & Binns (modified by Carneiro), Annichiarico, Eberhart & Russell, Cruz et al., and AMMI. The Lin & Binns (modified by Carneiro) and Annichiarico's methods were very useful to the common beans genetic breeding program, because of their easiness of use in separating favorable and unfavorable environments and their identification of stable genotypes among the most productive ones. The cultivar BRS Estilo combined high adaptability, stability, and grain yield in central Brazil. The cultivar Perola, widely utilized in Brazil, also had good stability and adaptability in this region.