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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
24/10/1996 |
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Data da última atualização: |
24/05/2018 |
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Autoria: |
SOUZA, V. A. B. de. |
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Título: |
Genetic studies on quantitative traits in peach. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Texas: A & M University, 1996. |
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Páginas: |
160p. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
The objectives of this research were to study variance components and heritabilities (h2) of several peach traits, evaluate genetic and phenotypic correlations among traists, predict correlated response to selection and detemine parental breeding values. Seedings of one hundred-eight crosses among 42 peach cultivars and selections were were evvaluated for sevealplant and fruit characteristics in 1993, 1994 and 1995. The data were analyzed bu using a mixed linear model, with years treated as fixed and additive genotypes as random factors. The predicted selection response indicates that for most traits genetic advance is possible. Most genetic correlations within both groups of traits were equal to or greater than 0.30. The phenotupic correlations were, in general, much lower than the corresponding geneticc correlations. For many cobinations of traits genetic correlations were very strong and indicate that in a multiple trait selection program, correlated response will play an important role in dictating genetic advance. For plant traits, direct selection for flower density would result in a correlated response greater than direc response for flowers per node and % VGN (vegetaive + blind nodes). For fruit traits, percent soluble solids and TA would be the trais most affected by direct selection for ripening or FDP. The predicted parental BVs indicate a high range in genetic values for most traits under study. |
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Palavras-Chave: |
Melhoramento genetico; Peach. |
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Thesagro: |
Pêssego. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 01853nam a2200169 a 4500
001 1054491
005 2018-05-24
008 1996 bl uuuu m 00u1 u #d
100 1 $aSOUZA, V. A. B. de
245 $aGenetic studies on quantitative traits in peach.
260 $aTexas: A & M University$c1996
300 $a160p.
500 $aPh.D. Thesis.
520 $aThe objectives of this research were to study variance components and heritabilities (h2) of several peach traits, evaluate genetic and phenotypic correlations among traists, predict correlated response to selection and detemine parental breeding values. Seedings of one hundred-eight crosses among 42 peach cultivars and selections were were evvaluated for sevealplant and fruit characteristics in 1993, 1994 and 1995. The data were analyzed bu using a mixed linear model, with years treated as fixed and additive genotypes as random factors. The predicted selection response indicates that for most traits genetic advance is possible. Most genetic correlations within both groups of traits were equal to or greater than 0.30. The phenotupic correlations were, in general, much lower than the corresponding geneticc correlations. For many cobinations of traits genetic correlations were very strong and indicate that in a multiple trait selection program, correlated response will play an important role in dictating genetic advance. For plant traits, direct selection for flower density would result in a correlated response greater than direc response for flowers per node and % VGN (vegetaive + blind nodes). For fruit traits, percent soluble solids and TA would be the trais most affected by direct selection for ripening or FDP. The predicted parental BVs indicate a high range in genetic values for most traits under study.
650 $aPêssego
653 $aMelhoramento genetico
653 $aPeach
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 209 | |
| 14. |  | SOUZA, V. A. B. de; SANTOS, C. A. F. Biotecnologia. In: FREIRE FILHO, F. R.; LIMA, J. A. de A.; RIBEIRO, V. Q. (Ed. tecn.). Feijão caupi: avanços tecnológicos. Brasília, DF: Embrapa Informação Tecnológica, 2005. cap. 2, p. 93-156.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio-Norte; Embrapa Semiárido. |
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| 19. | | CHENG, S. S.; SOUZA, V. A. B. de. Situação atual de produção e abastecimento de hortaliças no trópico úmido brasileiro. In: SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. Anais. Belém, PA: EMBRAPA-CPATU, 1986. v. 3, p. 259-272. (EMBRAPA-CPATU. Documentos, 36). v.3 Culturas temporárias.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 209 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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