|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
06/11/2008 |
Data da última atualização: |
24/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MIRANDA, G. V.; SOUZA, L. V de; GALVÃO, J. C. C.; GUIMARAES, L. J. M.; MELO, A. V. de; SANTOS, I. C. dos. |
Afiliação: |
Glauco Vieira Miranda, UFV; Leandro Vagno de Souza, UFV; João Carlos Cardoso Galvão, UFV; LAURO JOSE MOREIRA GUIMARAES, CNPMS; Aurélio Vaz de Melo, EPAMIG; Isabel Crisitna dos Santos, EPAMIG. |
Título: |
Genetic variability and heterotic groups of Brazilian popcorn populations. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Euphytica, Wageningen, v. 162, n. 3, p. 431-440, 2008. |
DOI: |
10.1007/s10681-007-9598-9 |
Idioma: |
Inglês |
Conteúdo: |
The development of successful advanced lines and cultivars in maize is dependent on parental selection and assignment to defined heterotic groups. So, the objectives of this study were to evaluate genetic variability and identify heterotic groups among Brazilian popcorn varieties. Thus, diallel crosses of advanced generations of the popcorn hybrids, IAC 112 and Zélia, and of three open-pollinated popcorn varieties, RS 20, Branco, and SAM were performed. Ten hybrid combinations, the five parents, and five check treatments were arranged in a block design with four replicates in two tropical-zone locations (CWb climate). Both additive and non-additive effects were important for grain yield, plant height, ear height, and husk cover. For popping expansion, only the additive effects were important. Hybrid combinations between the local variety (Branco) and F2 populations (IAC 112 and Zelia) resulted in the third and fourth highest values for popping expansion. The best grain yields were obtained with hybrid combinations involving SAM. Cultivars Zélia, IAC 112, and RS 20 increased popping expansion, whereas cultivar Branco increased grain yield of hybrid combinations. The following conclusions may be drawn: Brazilian popcorn populations have reduced heterosis and genetic variability to popping expansion in relation commercial cultivars; there is genetic variability among Brazilian popcorn populations that allows the exploitation of additive and non-additive effects for grain yield; it is possible to increase grain yield by using local varieties; but it would be difficult to obtain commercial hybrids from local varieties because they have poor performance for popping expansion MenosThe development of successful advanced lines and cultivars in maize is dependent on parental selection and assignment to defined heterotic groups. So, the objectives of this study were to evaluate genetic variability and identify heterotic groups among Brazilian popcorn varieties. Thus, diallel crosses of advanced generations of the popcorn hybrids, IAC 112 and Zélia, and of three open-pollinated popcorn varieties, RS 20, Branco, and SAM were performed. Ten hybrid combinations, the five parents, and five check treatments were arranged in a block design with four replicates in two tropical-zone locations (CWb climate). Both additive and non-additive effects were important for grain yield, plant height, ear height, and husk cover. For popping expansion, only the additive effects were important. Hybrid combinations between the local variety (Branco) and F2 populations (IAC 112 and Zelia) resulted in the third and fourth highest values for popping expansion. The best grain yields were obtained with hybrid combinations involving SAM. Cultivars Zélia, IAC 112, and RS 20 increased popping expansion, whereas cultivar Branco increased grain yield of hybrid combinations. The following conclusions may be drawn: Brazilian popcorn populations have reduced heterosis and genetic variability to popping expansion in relation commercial cultivars; there is genetic variability among Brazilian popcorn populations that allows the exploitation of additive and non-additive effects for grain yield;... Mostrar Tudo |
Palavras-Chave: |
Local variety; Maize; Popping expansion. |
Thesagro: |
Zea Mays. |
Thesaurus Nal: |
breeding; heterosis. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 02450naa a2200265 a 4500 001 1491590 005 2018-05-24 008 2008 bl uuuu u00u1 u #d 024 7 $a10.1007/s10681-007-9598-9$2DOI 100 1 $aMIRANDA, G. V. 245 $aGenetic variability and heterotic groups of Brazilian popcorn populations.$h[electronic resource] 260 $c2008 520 $aThe development of successful advanced lines and cultivars in maize is dependent on parental selection and assignment to defined heterotic groups. So, the objectives of this study were to evaluate genetic variability and identify heterotic groups among Brazilian popcorn varieties. Thus, diallel crosses of advanced generations of the popcorn hybrids, IAC 112 and Zélia, and of three open-pollinated popcorn varieties, RS 20, Branco, and SAM were performed. Ten hybrid combinations, the five parents, and five check treatments were arranged in a block design with four replicates in two tropical-zone locations (CWb climate). Both additive and non-additive effects were important for grain yield, plant height, ear height, and husk cover. For popping expansion, only the additive effects were important. Hybrid combinations between the local variety (Branco) and F2 populations (IAC 112 and Zelia) resulted in the third and fourth highest values for popping expansion. The best grain yields were obtained with hybrid combinations involving SAM. Cultivars Zélia, IAC 112, and RS 20 increased popping expansion, whereas cultivar Branco increased grain yield of hybrid combinations. The following conclusions may be drawn: Brazilian popcorn populations have reduced heterosis and genetic variability to popping expansion in relation commercial cultivars; there is genetic variability among Brazilian popcorn populations that allows the exploitation of additive and non-additive effects for grain yield; it is possible to increase grain yield by using local varieties; but it would be difficult to obtain commercial hybrids from local varieties because they have poor performance for popping expansion 650 $abreeding 650 $aheterosis 650 $aZea Mays 653 $aLocal variety 653 $aMaize 653 $aPopping expansion 700 1 $aSOUZA, L. V de 700 1 $aGALVÃO, J. C. C. 700 1 $aGUIMARAES, L. J. M. 700 1 $aMELO, A. V. de 700 1 $aSANTOS, I. C. dos 773 $tEuphytica, Wageningen$gv. 162, n. 3, p. 431-440, 2008.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 3 | |
1. | | MIRANDA, G. V.; COIMBRA, R. R.; GODOY, C. L.; SOUZA, L. V.; GUIMARÃES, L. J. M.; MELO, A. V. de. Potencial de melhoramento e divergência genética de cultivares de milho-pipoca. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 6, p. 681-688, jun. 2003 Título em inglês: Potential to breeding and genetic divergence in popcorn cultivars.Biblioteca(s): Embrapa Unidades Centrais. |
| |
2. | | MIRANDA, G. V.; SOUZA, L. V de; GALVÃO, J. C. C.; GUIMARAES, L. J. M.; MELO, A. V. de; SANTOS, I. C. dos. Genetic variability and heterotic groups of Brazilian popcorn populations. Euphytica, Wageningen, v. 162, n. 3, p. 431-440, 2008.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
Biblioteca(s): Embrapa Milho e Sorgo. |
| |
3. | | NUNES, A. P.; POSSO, S. R.; FROTA, A. V. B da; VITORINO, B. D; LAPS, R. R.; DONATELLI, R. J.; STRAUBE, F. C.; PIVATTO, M. A. C.; OLIVEIRA, D. M. M. de; CARLOS, B.; MELO, A. V. de; TOMAS, W. M.; FREITAS, G. O. de; SOUZA, R, A. D. de; BENITES, M.; MAMEDE, S.; MOREIRA, R. S. Birds of the Pantanal floodplains, Brazil: historical data, diversity, and conservation. Papéis Avulsos de Zoologia, v.61, e20216182, 2021.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Pantanal. |
| |
Registros recuperados : 3 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|