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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
27/08/1997 |
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Data da última atualização: |
13/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GAMA, E. E. G. e; HALLAUER, A. R.; FERRAO, R. G.; BARBOSA, D. M. |
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Afiliação: |
EMBRAPA/CNPMS. |
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Título: |
Heterosis in maize single crosses derived from a yellow Tuxpeño variety in Brazil. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Revista Brasileira de Genética, Ribeirão Preto, v. 18, n. 1, p. 81-85, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
Most maize (Zea mays L.) crosses in Tropical regions use the heterotic pattern of Tupeno dent and Caribbean flint. Corsses between related lines are not used for commercial production. Related inbred lines are used in either double or three-way hybrids with other unrelated lines to develop superior hybrids. This study was conducted to determine the combining ability among 11 related inbred lines from a Tuxpeno population. The 11 inbred lines were crossed in a diallel series and were evaluated at six locations. A combinig ability analysis was made for grain yeild. The average yield across environments for the 55 single (44.8 q/ha) was not comparable to that of the single-cross hybrid (56.5 q/ha), induced as check. General combining ability (GCA) effects and specific combining ability (SCA) effects were highly significant (P < 0.01). Variation due to GCA, however, accounted for 68% of the variation among crosses. Indicating that additive genetic effects were more important than nonadditive effects. Highly significantly positive GCA effects were observed for lines 6 (2.44 q/ha) and 7 (6.40 q/ha) and highly significantly negative GCA effects for lines 5 (1.63 q/ha), 10 (2.64 q/ha), and 11 (4,01 q/ha). Significantly positive SCA effects were observed with line 4 x line 11, line 5 x line 9, and line 5 x 11 crosses. Lines 6 and 7 may have potential use as parents for three-way or double-cross hybrids. |
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Palavras-Chave: |
Heterose; Maize. |
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Thesagro: |
Melhoramento; Milho; Zea Mays. |
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Thesaurus Nal: |
breeding; heterosis. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43809/1/Heterosis-maize.pdf
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Marc: |
LEADER 02097naa a2200241 a 4500
001 1475991
005 2018-06-13
008 1995 bl uuuu u00u1 u #d
100 1 $aGAMA, E. E. G. e
245 $aHeterosis in maize single crosses derived from a yellow Tuxpeño variety in Brazil.$h[electronic resource]
260 $c1995
520 $aMost maize (Zea mays L.) crosses in Tropical regions use the heterotic pattern of Tupeno dent and Caribbean flint. Corsses between related lines are not used for commercial production. Related inbred lines are used in either double or three-way hybrids with other unrelated lines to develop superior hybrids. This study was conducted to determine the combining ability among 11 related inbred lines from a Tuxpeno population. The 11 inbred lines were crossed in a diallel series and were evaluated at six locations. A combinig ability analysis was made for grain yeild. The average yield across environments for the 55 single (44.8 q/ha) was not comparable to that of the single-cross hybrid (56.5 q/ha), induced as check. General combining ability (GCA) effects and specific combining ability (SCA) effects were highly significant (P < 0.01). Variation due to GCA, however, accounted for 68% of the variation among crosses. Indicating that additive genetic effects were more important than nonadditive effects. Highly significantly positive GCA effects were observed for lines 6 (2.44 q/ha) and 7 (6.40 q/ha) and highly significantly negative GCA effects for lines 5 (1.63 q/ha), 10 (2.64 q/ha), and 11 (4,01 q/ha). Significantly positive SCA effects were observed with line 4 x line 11, line 5 x line 9, and line 5 x 11 crosses. Lines 6 and 7 may have potential use as parents for three-way or double-cross hybrids.
650 $abreeding
650 $aheterosis
650 $aMelhoramento
650 $aMilho
650 $aZea Mays
653 $aHeterose
653 $aMaize
700 1 $aHALLAUER, A. R.
700 1 $aFERRAO, R. G.
700 1 $aBARBOSA, D. M.
773 $tRevista Brasileira de Genética, Ribeirão Preto$gv. 18, n. 1, p. 81-85, 1995.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 217 | |
| 1. |  | FERRÃO, R. G.; FERRAO, M. A. G. Cultivares de Coffea arabica, para as regiões baixas, quentes, tecnificadas e irrigadas do Estado do Espírito Santo. IN: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 1., 2000, Poços de Caldas. Resumos Expandidos. Brasília, DF: Embrapa Café/MINASPLAN, 2000.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
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| 4. | | FERRAO, R. G.; GAMA, E. E. G.; CARVALHO, H. W. L.; FERRAO, M. A. G. Avaliação da capacidade combinatória entre vinte linhagens de milho (Zea mays, L.). In: CONGRESSO NACIONAL DE MILHO E SORGO, 19.; REUNIAO TECNICA ANUAL DO MILHO, 37.; REUNIAO TECNICA ANUAL DO SORGO, 21., 1992, Porto Alegre. Resumos... Porto Alegre: SSA, 1992. p. 33.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | SCHMILDT, E. R.; CRUZ, C. D.; ZANUNCIO, J. C.; PEREIRA, P. R. G.; FERRÃO, R. G. Avaliação de métodos de correção do estande para estimar a produtividade em milho. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 8, p. 1011-18, ago. 2001 Título em inglês: Evaluation of stand correction methods to estimate productivity in cornfields.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 12. | | FERRÃO, R. G.; FONSECA, A. F. A. da; FERRAO, M. A. G. Banco ativo de germoplasma de Coffea canephora, variedade conilon, no Estado do Espírito Santo. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 1., 2000, Poços de Caldas. Resumos Expandidos. Brasília, DF: Embrapa Café/MINASPLAN, 2000.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
| |
| Registros recuperados : 217 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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