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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
11/09/1997 |
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Data da última atualização: |
21/07/2018 |
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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. |
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Afiliação: |
EMBRAPA/CNPMS. |
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Título: |
Stability of hybrids produced from selected and unselected lines of maize. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Crop Science, Madison, v. 20, n. 5, p. 623-626, 1980. |
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Idioma: |
Inglês |
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Conteúdo: |
Interpopulation ans intrapopulation single-cross hybrids of maize (Zea mays L.) produced from selected and unselected lines were compared for grain yield productivity ans stability. Selected lines were chosen from paired plant interpopulation crosses tested from So x So through S4 x S4 generations, whereas unselected lines were derived by single-seed descent from the So plants. Our objective was to compare relative stability of grain yield among hybrids produced from selected ans unselected lines. Mean grain yield and stability analysis of variance, Which included linear regression coefficient (b1) and deviation from the regression (sd2), were used to determine relative stability of the single-cross hybrids. Simple correlation coefficients among mean grain yield, b1, and Sd2 also were determine. Hybrids of selected lines produced significantly greater grain yield than did hybrids of unselected lines. Significant hybrid-environment interactions were detected for both groups of hybrids, and both groups has similar contributions to total hybrid-environment variances. Hybrids of selected nas unselected lines had significantly differnt regression coefficient, as indicated by the hybrid-environment (linear) mean squares. Both groups of hybrids had similar number of stable hybrids when both stability parameters (b1 and S42) were considered. Simple correlations between mean yield and b1 and means yield and S42 for both gropus of hybrids were highly significant (...) |
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Palavras-Chave: |
Maize. |
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Thesagro: |
Melhoramento; Milho; Zea Mays. |
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Thesaurus Nal: |
breeding. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02014naa a2200193 a 4500
001 1476469
005 2018-07-21
008 1980 bl uuuu u00u1 u #d
100 1 $aGAMA, E. E. G. e
245 $aStability of hybrids produced from selected and unselected lines of maize.$h[electronic resource]
260 $c1980
520 $aInterpopulation ans intrapopulation single-cross hybrids of maize (Zea mays L.) produced from selected and unselected lines were compared for grain yield productivity ans stability. Selected lines were chosen from paired plant interpopulation crosses tested from So x So through S4 x S4 generations, whereas unselected lines were derived by single-seed descent from the So plants. Our objective was to compare relative stability of grain yield among hybrids produced from selected ans unselected lines. Mean grain yield and stability analysis of variance, Which included linear regression coefficient (b1) and deviation from the regression (sd2), were used to determine relative stability of the single-cross hybrids. Simple correlation coefficients among mean grain yield, b1, and Sd2 also were determine. Hybrids of selected lines produced significantly greater grain yield than did hybrids of unselected lines. Significant hybrid-environment interactions were detected for both groups of hybrids, and both groups has similar contributions to total hybrid-environment variances. Hybrids of selected nas unselected lines had significantly differnt regression coefficient, as indicated by the hybrid-environment (linear) mean squares. Both groups of hybrids had similar number of stable hybrids when both stability parameters (b1 and S42) were considered. Simple correlations between mean yield and b1 and means yield and S42 for both gropus of hybrids were highly significant (...)
650 $abreeding
650 $aMelhoramento
650 $aMilho
650 $aZea Mays
653 $aMaize
700 1 $aHALLAUER, A. R.
773 $tCrop Science, Madison$gv. 20, n. 5, p. 623-626, 1980.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Roraima. Para informações adicionais entre em contato com cpafrr.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Roraima. |
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Data corrente: |
18/01/2008 |
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Data da última atualização: |
15/08/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - A |
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Autoria: |
NECHET, K. L.; HALFELD-VIEIRA, B. A. |
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Afiliação: |
Kátia de Lima Nechet, CPAF-RR; Bernardo de Almeida Halfed Vieira, CPAF-RR. |
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Título: |
Caracterização de isolados de Rhizoctonia spp., associados à mela do feijão-caupi (vigna unguiculata), coletados em Roraima. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 31 (5), p. 505-508, 2006. |
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Idioma: |
Português |
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Palavras-Chave: |
Feijão-caupi; Roraima. |
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Thesagro: |
Rhizoctonia Solani; Vigna Unguiculata. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00550naa a2200169 a 4500
001 1688855
005 2012-08-15
008 2006 bl --- 0-- u #d
100 1 $aNECHET, K. L.
245 $aCaracterização de isolados de Rhizoctonia spp., associados à mela do feijão-caupi (vigna unguiculata), coletados em Roraima.
260 $c2006
650 $aRhizoctonia Solani
650 $aVigna Unguiculata
653 $aFeijão-caupi
653 $aRoraima
700 1 $aHALFELD-VIEIRA, B. A.
773 $tFitopatologia Brasileira$gv. 31 (5), p. 505-508, 2006.
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