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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
14/10/1997 |
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Data da última atualização: |
27/11/2014 |
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Autoria: |
CASALI, V. W. D.; TIGHCELAAR, E. C. |
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Título: |
Computer simulation studies comparing pedigree, bulk, and single seed descent selection in self pollinated populations. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
Journal of the American Society for Horticultural Science, v. 100, n. 4, p. 364-367, 1975. |
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Idioma: |
Inglês |
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Conteúdo: |
Computer simulation was used to compare breeding progress under self fertilization with pedigree or mass selection, single seed descent (SSD) and combinations of early generation pedigree or mass selection with SSD. Pedigree selection was the most effective selection method at high (75%) and moderate (50%) heritabilities. At low (25%) and very low (10%) heritabilities, mass selection and SSD respectively yielded the best single F6 line. Early generation pedigree selection to F4 followed by SSD was not significantly different from pedigree selection alone at all heritabilities simulated. SSD offers greatest benefits in situations where simultaneous selection is required for several characteristics under different heritabilities. SSD alone or in combination with mass selection retained greater genetic variability for line selection in F6. Pedigree or mass selection for highly heritable characters in early generations (F2 and F3) followed by SSD and F6 selection on the basis of line performance for characters of low heritability would appear to maximize progress for most breeding situations. |
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Palavras-Chave: |
Fertilizacao; Pollinated. |
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Thesagro: |
Polinização; População. |
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Thesaurus Nal: |
population. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01716naa a2200193 a 4500
001 1050523
005 2014-11-27
008 1975 bl --- 0-- u #d
100 1 $aCASALI, V. W. D.
245 $aComputer simulation studies comparing pedigree, bulk, and single seed descent selection in self pollinated populations.
260 $c1975
520 $aComputer simulation was used to compare breeding progress under self fertilization with pedigree or mass selection, single seed descent (SSD) and combinations of early generation pedigree or mass selection with SSD. Pedigree selection was the most effective selection method at high (75%) and moderate (50%) heritabilities. At low (25%) and very low (10%) heritabilities, mass selection and SSD respectively yielded the best single F6 line. Early generation pedigree selection to F4 followed by SSD was not significantly different from pedigree selection alone at all heritabilities simulated. SSD offers greatest benefits in situations where simultaneous selection is required for several characteristics under different heritabilities. SSD alone or in combination with mass selection retained greater genetic variability for line selection in F6. Pedigree or mass selection for highly heritable characters in early generations (F2 and F3) followed by SSD and F6 selection on the basis of line performance for characters of low heritability would appear to maximize progress for most breeding situations.
650 $apopulation
650 $aPolinização
650 $aPopulação
653 $aFertilizacao
653 $aPollinated
700 1 $aTIGHCELAAR, E. C.
773 $tJournal of the American Society for Horticultural Science$gv. 100, n. 4, p. 364-367, 1975.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 66 | |
| 13. |  | CARVALHO, C. G. P. de; OLIVEIRA, V. R.; CRUZ, C. D.; CASALI, V. W. D. Análise de trilha sob multicolinearidade em pimentão. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 4, p. 603-13, abr. 1999 Título em inglês: Path analysis under multicollinearity in green pepper.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 14. | | SANTOS, R. H. S.; SILVA, F. da; CASALI, V. W. D.; CONDE, A. R. Conservação pós-colheita de alface cultivada com composto orgânico. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 3, p. 521-25, mar. 2001 Título em inglês: Post harvest conservation of lettuce cultivated with organic compost.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 18. | | LEDO, F. J. da S.; CASALI, V. W. D.; CRUZ, C. D.; PEREIRA, P. R. G. Diversidade genética em cultivares de alface, por meio de análise multivariada. In: CONGRESSO BRASILEIRO DE OLERICULTURA, 39., 1999, Tubarão, SC. A olericultura no Mercosul: resumos. Tubarão: SOB, 1999. R161. 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| 19. | | RAMOS, S. R. R.; QUEIROZ, M. A. de; CASALI, V. W. D.; CRUZ, C. D. Divergencia genetica em germoplasma de abobora procedente de diferentes areas do Nordeste. Horticultura Brasileira, Brasília, DF, v. 18, n. 3, p. 195-199, nov. 2000.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Semiárido. |
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| 20. | | MOURA, W. de M.; CASALI, V. W. D.; CRUZ, C. D.; LIMA, P. C. de. Divergência genética em linhagens de pimentão em relação a eficiência nutricional de fósforo. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 2, p. 217-24, fev. 1999 Título em inglês: Genetic divergence of phosphorus nutritional efficiency in sweet pepper lines.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 66 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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