Value for cultivation and use of upland rice cultivars tested in multi-environments

• Autor(a) principal: Resende, Marcos Deon Vilela de
• Data de Publicação: 2012
• Outros Autores: Borges, Vanderley, Soares, Antônio Alves, Reis, Moizés de Sousa, Cornelio, Vanda Maria de Oliveira, Leite, Natália Alves, Soares, Plínio César, Costa Júnior, Geovani Tadeu
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://dx.doi.org/10.1590/S1984-70332012000100004; http://locus.ufv.br//handle/123456789/25902
• topic: Oryza sativa; Mixed models; Genotypic values; Modelos mistos; Valor genotípico

Data from 11 years of a breeding program for upland rice of the partner institutions Embrapa arroz e feijão, Epamig and UFLA conducted in 11 regions of Minas Gerais, were analyzed by the mixed model methodology. The genotypic correlations between environments ranged from medium to high, suggesting the predominance of simple interaction, but with differentiated ranking of genotypes at the different locations. Lines with specific performance, as well as lines of broad adaptation were identified. The performance of cultivar BRSMG Caravera, released in 2007, was superior to the others in terms of grain yield at all sites assessed, in other words, broad adaptation, in addition to a high genotypic performance.