SciELO - Scientific Electronic Library Online

vol.22 issue2Identificación de ambientes representativos y discriminatorios para seleccionar genotipos de arroz mediante el Biplot GGEAfinidad y efecto de Azospirillum sp. en maíz author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Agronomía Mesoamericana

On-line version ISSN 2215-3608Print version ISSN 1659-1321


GUERRERO-GUERRERO, César et al. Aptitud combinatoria del rendimiento y sus componentes en dos grupos de líneas de maíz. Agron. Mesoam [online]. 2011, vol.22, n.2, pp.257-267. ISSN 2215-3608.

Yield combining ability and components in two groups of inbred lines of maize. The objective of this work was to estimate the effects of the General Combining Ability (GCA) of inbreed lines, and Specific Combining Ability (SCA) of its crosses, and to evaluate its use in maize hybridization program. The present work was conducted in two stages; in year 2006 the crosses were done at the experimental station from Universidad Autónoma Agraria Antonio Narro Unidad Laguna (UAAANUL), and evaluation of the crosses was conducted in year 2007, at two localities and in three environments: UAAAN’s experimental station during spring and summer cycles, Niagara and Aguascalientes Municipality during the spring cycle. The genetic material used were two groups of inbred lines, the first formed by four inbred lines from UAAANUL, and the second group was formed by ten inbred lines from Centro Internacional para el Mejoramiento del Maíz y Trigo (CIMMYT). The estimation of General Combining Ability (GCA) and Specific Combining Ability (SCA) were obtained using a test of line x line. CML254 (10.88 t/ha) and AN447 (6.64 t/ha) had the highest effects of GCA for both groups. The highest effects of SCA were for CML264 x AN447 (128.8 t/ha) and CML247 x AN123 (116.2 t ha-1). These results show that is possible to structure a maize hybridization program, using the best inbred lines from CIMMYT and UAAANUL.

Keywords : hybrids; genetic material; crosses; SCA.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License