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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças; Embrapa Soja. |
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Data corrente: |
27/09/2005 |
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Data da última atualização: |
27/09/2005 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LAMBERT, E. de S.; PINTO, C. A. B. P.; SIMON, G. A. |
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Título: |
Sequential selection of potato clones. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 5, n. 2, p. 149-156, Jun. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
Selection in species ofvegetative propagation can be realized with the phenotypic information of genotypes obtained in earlier stages grouped in a selection index, denominated sequential selection. Objective of this study was to verify the efficiency of the sequential selection in potato. Nine generations were used and the trials conducted at different sites in different years and different planting periods. For the construction of this index the phenotypic means were weighed by the number of replications per trial. A low correlation was observed between the clone means in the generations, indicating that the data of a single generation only should be used to discard the worst clones. Owing to the sequential selection index, a reduced number of generations for selection can be recommended for highly heritable traits. For low-heritability traits, the index presented an' even greater efficiency, but evaluations of a larger number of generations are needed in such cases. |
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Palavras-Chave: |
Genética quantitativa. |
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Thesagro: |
Batata; Clone; Seleção; Solanum Tuberosum. |
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Thesaurus Nal: |
Potatoes. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01589naa a2200217 a 4500
001 1778402
005 2005-09-27
008 2005 bl uuuu u00u1 u #d
100 1 $aLAMBERT, E. de S.
245 $aSequential selection of potato clones.$h[electronic resource]
260 $c2005
520 $aSelection in species ofvegetative propagation can be realized with the phenotypic information of genotypes obtained in earlier stages grouped in a selection index, denominated sequential selection. Objective of this study was to verify the efficiency of the sequential selection in potato. Nine generations were used and the trials conducted at different sites in different years and different planting periods. For the construction of this index the phenotypic means were weighed by the number of replications per trial. A low correlation was observed between the clone means in the generations, indicating that the data of a single generation only should be used to discard the worst clones. Owing to the sequential selection index, a reduced number of generations for selection can be recommended for highly heritable traits. For low-heritability traits, the index presented an' even greater efficiency, but evaluations of a larger number of generations are needed in such cases.
650 $aPotatoes
650 $aBatata
650 $aClone
650 $aSeleção
650 $aSolanum Tuberosum
653 $aGenética quantitativa
700 1 $aPINTO, C. A. B. P.
700 1 $aSIMON, G. A.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 5, n. 2, p. 149-156, Jun. 2005.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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