Assessing the genotypic performance of carioca beans through mixed models/ Desempenho genotipico de feijao carioca via modelos mistos

Using genotypes adapted to different regions is one of the main ways to increase Brazilian bean yield. The aim of the present study was to assess the genotypic performance of Carioca beans through mixed models. Fourteen Carioca bean genotypes were assessed in four locations in Pernambuco State (Arcoverde, Caruaru, Belem de Sao Francisco and Sao Joao counties) in 2015. The experiments followed a completely randomized block design, with three repetitions. Genetic parameters were estimated according to the REML/BLUP methodology, whereas genotype selection was based on the harmonic mean of relative performance of genetic values method (MHPRVG). The mean genotype heritability had moderate magnitude, high selective accuracy, besides allowing selection of agronomically superior individuals. Genotypes BRS Notavel', CNFC 15480 and 'IPR 139' showed good adaptability and grain yield stability. There was agreement among the statistics ([mathematical expression not reproducible]), stability (MHVG), adaptability (PRVG), and stability and adaptability of genetic values (MHPRVG) in the discrimination of the most productive genotypes, which presented high adaptability and stability. This outcome indicated that these genotypes can be part of the selection criteria regularly used in bean breeding programs. Key words: Phaseolus vulgaris L., adaptability, productivity, REML/BLUP, stability. O uso de genotipos adaptados a diferentes regioes e uma das principais formas de aumentar a produtividade brasileira de feijao. O presente trabalho objetivou avaliar o desempenho genotipico de feijao carioca via modelos mistos. Foram avaliados 14 genotipos de feijao carioca em quatro locais do estado de Pernambuco (Arcoverde, Caruaru, Belem de Sao Francisco e Sao Joao) no ano de 2015. Os experimentos foram instalados em delineamento de blocos ao acaso com tres repeticoes. Os parametros geneticos foram estimados pela metodologia REML/BLUP, e a selecao baseou-se no metodo da media harmonica da performance relativa dos valores geneticos (MHPRVG). A herdabilidade media dos genotipos apresentou magnitude moderada, aliada a alta acuracia seletiva, o que possibilita a selecao de individuos agronomicamente superiores. Os genotipos 'BRS Notavel', CNFC 15480 e IPR 139' apresentaram boa adaptabilidade e estabilidade produtiva de graos. Houve concordancia entre as estatisticas ([mathematical expression not reproducible]), estabilidade de valores geneticos (MHVG), adaptabilidade de valores geneticos (PR