Genotypic variability and response to the selection in foxtail millet (setaria italica (l.) p. beauv.)

Foxtail millet (Setaria italica) is a summer annual C4 short-season crop used as cereal and forage. The aim of this study was to estimate genetic parameters useful for genetic improvement of traits related to grain and forage yield in populations adapted to Argentina. Genotypic variation, genotypic correlations and the expected genetic gain in pure lines selection were estimated in cultivars Carapé INTA y Yaguané INTA. The cultivars differed mainly in number of tillers, plant height and panicle size. Yaguané INTA showed higher levels of genotypic variation than Carapé INTA in all traits. The number of tillers had strong negative correlations with the rest of morphological traits in Yaguané INTA while these correla- tions were less marked in Carapé INTA. The expected genetic gains in Yaguané INTA were higher than those obtained in Carapé INTA for all traits with greater gains in panicle size and number of tillers. The estimated parameters suggest that Yaguané INTA has the greatest potential for genetic improvement.

• Autores: Gabriel Velazco, Julio; Rimieri, Pedro
• Tipo de recurso: Article of journal
• Fecha de publicación: 2012
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/72170
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/72170; http://bdigital.unal.edu.co/36643/
• Palabra clave: 6 Tecnología (ciencias aplicadas) / Technology; 63 Agricultura y tecnologías relacionadas / Agriculture; Correlaciones genotípicas; heredabilidad; líneas puras; rendimiento de biomasa.; Biomass yield; genotypic correlations; heritability; inbred lines.
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional