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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
31/03/1998 |
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Data da última atualização: |
31/03/1998 |
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Autoria: |
KUROZAWA, C.; NAKAGAWA, J.; DOI, T.; MELOTTO, E. |
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Título: |
Comportamento de 13 cultivares de gergelim (Sesamum indicum) a Cercospora sesami, sua transmissibilidade por sementes e controle. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 10, p. 123-128, Fev., 1985. |
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Idioma: |
Português |
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Conteúdo: |
O comportamento de treze cultivares de gergelim foi estudado em relacao a C. sesami, em condicoes de campo, bem como a incidencia e o controle dos fungos das sementes. As sementes colhidas neste ensaio foram armazenadas em camara seca, sendo a incidencia de C. sessami avaliada em 4 epocas: tres meses, um ano, dois anos, e quatro anos apos a colheita. Duzentas sementes de cada cultivar foram tomadas ao acaso e colocadas cinquenta em cada placa de Petri, contendo duas camadas de papel de filtro "Whatman no. 2", previamente umedecidas com agua destilada. Os ensaios foram conduzidos sob temperatura de 25oC e iluminacao alternada (12 horas de luz e 12 horas sem luz). As sementes foram examinadas apos tres dias de incubacao e consideradas contaminadas aquelas que mostravam esporulacao de C. seesami. As cultivares Morada indeiscente e Morada, ambas de habito ramificado, comportaram-se como mais resistentes a C. sesami, em condicoes de campo, menor incidencia do fungo nas sementes. As outras cultivares - Preta, Venezuela 51, SM-21, SM-24, Dulce, Oro, Delco, Blade Mairochech, SM-5, RDA-6 e Russie - foram suscetiveis e apresentaram alta incidencia do fungo decresceu com o periodo de armazenamento das sementes, o que nao ocorreu com as sementes. Os fungicidas Carbendazim e Tiofanato metilico eliminaram o fungo das sementes, enquanto que Thiram, PCNB e Pyracarbolid foram ineficientes. |
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Palavras-Chave: |
Transmissao pela semente. |
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Thesagro: |
Cercospora Sesami; Cercosporiose; Doença Fúngica; Gergelim; Sesamum Indicum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02081naa a2200229 a 4500
001 1052283
005 1998-03-31
008 1985 bl --- 0-- u #d
100 1 $aKUROZAWA, C.
245 $aComportamento de 13 cultivares de gergelim (Sesamum indicum) a Cercospora sesami, sua transmissibilidade por sementes e controle.
260 $c1985
520 $aO comportamento de treze cultivares de gergelim foi estudado em relacao a C. sesami, em condicoes de campo, bem como a incidencia e o controle dos fungos das sementes. As sementes colhidas neste ensaio foram armazenadas em camara seca, sendo a incidencia de C. sessami avaliada em 4 epocas: tres meses, um ano, dois anos, e quatro anos apos a colheita. Duzentas sementes de cada cultivar foram tomadas ao acaso e colocadas cinquenta em cada placa de Petri, contendo duas camadas de papel de filtro "Whatman no. 2", previamente umedecidas com agua destilada. Os ensaios foram conduzidos sob temperatura de 25oC e iluminacao alternada (12 horas de luz e 12 horas sem luz). As sementes foram examinadas apos tres dias de incubacao e consideradas contaminadas aquelas que mostravam esporulacao de C. seesami. As cultivares Morada indeiscente e Morada, ambas de habito ramificado, comportaram-se como mais resistentes a C. sesami, em condicoes de campo, menor incidencia do fungo nas sementes. As outras cultivares - Preta, Venezuela 51, SM-21, SM-24, Dulce, Oro, Delco, Blade Mairochech, SM-5, RDA-6 e Russie - foram suscetiveis e apresentaram alta incidencia do fungo decresceu com o periodo de armazenamento das sementes, o que nao ocorreu com as sementes. Os fungicidas Carbendazim e Tiofanato metilico eliminaram o fungo das sementes, enquanto que Thiram, PCNB e Pyracarbolid foram ineficientes.
650 $aCercospora Sesami
650 $aCercosporiose
650 $aDoença Fúngica
650 $aGergelim
650 $aSesamum Indicum
653 $aTransmissao pela semente
700 1 $aNAKAGAWA, J.
700 1 $aDOI, T.
700 1 $aMELOTTO, E.
773 $tFitopatologia Brasileira$gv. 10, p. 123-128, Fev., 1985.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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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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