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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
14/10/1997 |
Data da última atualização: |
27/11/2014 |
Autoria: |
CASALI, V. W. D.; TIGHCELAAR, E. C. |
Título: |
Computer simulation studies comparing pedigree, bulk, and single seed descent selection in self pollinated populations. |
Ano de publicação: |
1975 |
Fonte/Imprenta: |
Journal of the American Society for Horticultural Science, v. 100, n. 4, p. 364-367, 1975. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Fertilizacao; Pollinated. |
Thesagro: |
Polinização; População. |
Thesaurus Nal: |
population. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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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Embrapa Meio-Norte (CPAMN) |
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Registros recuperados : 67 | |
13. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | 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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17. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | 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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20. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | PEREIRA, A. S.; SANTANNA, R.; GOMES, J. C.; MOREIRA, M. A.; CASALI, V. W. D. Obtencao e caracterizacao fisico quimica de um isolado proteico de semente de moranga (Cucurbita maxima, Duchesnne). Boletim da Sociedade Brasileira e Tecnologia de Alimentos, Campinas, v.19, n.1, p.23-24, jan./mar. 1985.Biblioteca(s): Embrapa Hortaliças. |
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