Analysis of diallel crosses between elephantgrass (Pennisetum purpureum Schum.) and pearl millet (Pennisetum glaucum (L.) R. Br.). 1. Morphoagronomic characteristics - DOI: 10.4025/actasciagron.v28i2.1128

• Autor(a) principal: Pereira, Antônio Vander
• Data de Publicação: 2008
• Outros Autores: Daher, Rogério Figueiredo, Pereira, Messias Gonzaga, Lédo, Francisco José da Silva, Souza Sobrinho, Fausto da, Amaral Junior, Antônio Teixeira do, Freitas, Vicente de Paula, Pereira, Telma Nair Santana, Ferreira, Cláudia Fortes
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1128
• topic: hibridação interespecífica; capacidade de combinação; produção de matéria seca; relação folha caule; efeitos gênicos aditivos; efeitos gênicos de dominância; 2.02.00.00-5 Genética

This work aimed to estimate general combining ability (GCA) and specific combining ability (SCA) in ten morphoagronomic characteristics through diallel crossing among eleven elephantgrass (Pennisetum purpureum Schum.) and twelve pearl millet (Pennisetum glaucum (L.) R. Br.) genotypes using the method 4, Griffing (1956) model. The 132 interespecific hybrids were evaluated in a complete randomized block design, with three replications, from march of 2001 to april of 2002, in Embrapa Gado de Leite, Coronel Pacheco, Minas Gerais State. The genetic variability was superior in elephantgrass genitors, so that intraspecific breeding, mainly in elephantgrass, can result in greater gains to almost all characteristics than to intraspecific mode. The best hybrid combinations to forage production, both in integral plant and in leaf fraction, were BAG-64 x Wrajpop 88, BAG-64 x HiGrop, BAG-19 x BN 2, and BAG-19 x NPM 1.