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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
20/10/1998 |
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Data da última atualização: |
06/01/2015 |
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Autoria: |
HECHT, S. B. [Ed.]. |
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Título: |
Amazonia: investigación sobre agricultura y uso de tierras. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Cali: CIAT, 1982. |
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Páginas: |
448 p. |
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Descrição Física: |
il. |
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Série: |
(CIAT. Serie 035-4(82)). |
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ISBN: |
84-89206-15-5 |
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Idioma: |
Espanhol |
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Conteúdo: |
Evaluacion general del potencial agropecuario de la Amazonia boliviana; Evaluacion general de las politicas de desarrollo e investigacion en la Amazonia brasileira; Algunas consideraciones sobre la Amazonia colombiana; Investigacion de ecossistemas; Los usos de la terra en la region amazonica; Los sistemas naturales; Investigacion agricola; Silvicultura y agrosilvicultura. |
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Palavras-Chave: |
Brasil; Natural resource. |
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Thesagro: |
Agricultura; Pesquisa; Recurso Natural; Uso da Terra. |
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Thesaurus Nal: |
agriculture; Amazonia; land use; research. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01032nam a2200265 a 4500
001 1570084
005 2015-01-06
008 1982 bl uuuu 00u1 u #d
020 $a84-89206-15-5
100 1 $aHECHT, S. B. [Ed.].
245 $aAmazonia$binvestigación sobre agricultura y uso de tierras.
260 $aCali: CIAT$c1982
300 $a448 p.$cil.
490 $a(CIAT. Serie 035-4(82)).
520 $aEvaluacion general del potencial agropecuario de la Amazonia boliviana; Evaluacion general de las politicas de desarrollo e investigacion en la Amazonia brasileira; Algunas consideraciones sobre la Amazonia colombiana; Investigacion de ecossistemas; Los usos de la terra en la region amazonica; Los sistemas naturales; Investigacion agricola; Silvicultura y agrosilvicultura.
650 $aagriculture
650 $aAmazonia
650 $aland use
650 $aresearch
650 $aAgricultura
650 $aPesquisa
650 $aRecurso Natural
650 $aUso da Terra
653 $aBrasil
653 $aNatural resource
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | 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
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
06/11/2008 |
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Data da última atualização: |
24/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
MIRANDA, G. V.; SOUZA, L. V de; GALVÃO, J. C. C.; GUIMARAES, L. J. M.; MELO, A. V. de; SANTOS, I. C. dos. |
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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. |
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Título: |
Genetic variability and heterotic groups of Brazilian popcorn populations. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Euphytica, Wageningen, v. 162, n. 3, p. 431-440, 2008. |
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DOI: |
10.1007/s10681-007-9598-9 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Local variety; Maize; Popping expansion. |
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Thesagro: |
Zea Mays. |
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Thesaurus NAL: |
breeding; heterosis. |
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Categoria do assunto: |
G Melhoramento Genético |
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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.
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Embrapa Milho e Sorgo (CNPMS) |
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