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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
14/06/2006 |
Data da última atualização: |
31/10/2022 |
Autoria: |
BRAVO, F. |
Título: |
Perspectives for the study of Diptera (Insecta) in the Brazilian semi-arid. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
In: QUEIROZ, L. P. de; RAPINI, A.; GIULIETTI, A. M. (Ed.). Towards greater knowledge of the brazilian semi-arid biodiversity. Brasília, DF: Ministério da Ciência e Tecnologia, 2006. |
Páginas: |
cap. 16, p.91-92. |
Idioma: |
Inglês |
Palavras-Chave: |
Diversidade; Estudo; Recursos naturais; Região semi-árida. |
Thesagro: |
Biodiversidade; Díptera; Espécie; Inseto. |
Thesaurus Nal: |
Biodiversity. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 00750naa a2200229 a 4500 001 1157328 005 2022-10-31 008 2006 bl uuuu u00u1 u #d 100 1 $aBRAVO, F. 245 $aPerspectives for the study of Diptera (Insecta) in the Brazilian semi-arid. 260 $c2006 300 $acap. 16, p.91-92. 650 $aBiodiversity 650 $aBiodiversidade 650 $aDíptera 650 $aEspécie 650 $aInseto 653 $aDiversidade 653 $aEstudo 653 $aRecursos naturais 653 $aRegião semi-árida 773 $tIn: QUEIROZ, L. P. de; RAPINI, A.; GIULIETTI, A. M. (Ed.). Towards greater knowledge of the brazilian semi-arid biodiversity. Brasília, DF: Ministério da Ciência e Tecnologia, 2006.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
27/08/1997 |
Data da última atualização: |
13/06/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GAMA, E. E. G. e; HALLAUER, A. R.; FERRAO, R. G.; BARBOSA, D. M. |
Afiliação: |
EMBRAPA/CNPMS. |
Título: |
Heterosis in maize single crosses derived from a yellow Tuxpeño variety in Brazil. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Revista Brasileira de Genética, Ribeirão Preto, v. 18, n. 1, p. 81-85, 1995. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Heterose; Maize. |
Thesagro: |
Melhoramento; Milho; Zea Mays. |
Thesaurus NAL: |
breeding; heterosis. |
Categoria do assunto: |
G Melhoramento Genético |
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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Embrapa Milho e Sorgo (CNPMS) |
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