General and specific combining ability of tropical and subtropical maize (Zea mays) lines.
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| Autores: | , , |
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| 格式: | artículo original |
| 状态: | Versión publicada |
| Fecha de Publicación: | 2005 |
| 实物特征: | Twenty maizelines were crossed with six inbreds used as testers, with theobjective of examining their general and specific combiningability and determine their usefulness in a hybridizationprogram. The crosses were evaluated in three environmentsat Mexico during 1997. General combining ability (GCA)and specific combining ability (SCA) effects were calculatedusing a Line x Tester analysis. CML264 (1586 kg/ha) andCML319 (1285 kg/ha) were the highest GCA lines in thetropical and subtropical group, respectively. The highestSCA effects were for the crosses CML322 x M.L.S4-1 (1651kg/ha) and CML258 x SSE255-18-19 (1512 kg/ha). Theseresults indicate that it is possible to develop a hybrid programusing the best lines released by the International Maize andWheat Improvement Center (CIMMYT), and the best testersfrom UAAAN. |
| País: | Portal de Revistas UCR |
| 机构: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 语言: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/11866 |
| 在线阅读: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11866 |
| Palabra clave: | Lines testers GCA SCA hybrids. Líneas probadores ACG ACE híbridos. |