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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/04/1997 |
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Data da última atualização: |
22/04/1997 |
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Autoria: |
PERKINS, J. M.; JINKS, J. L. |
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Título: |
Enviromental and genotype-enviromental components of variability. III. Multiple lines and crosses. |
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Ano de publicação: |
1968 |
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Fonte/Imprenta: |
Heredity, v. 23, p. 339-356, 1968. |
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Idioma: |
Inglês |
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Conteúdo: |
The analysis of genotype-environmental interaction developed in earlier papers in this series for a pair of inbred lines and their F1 has been extended to many inbred lines and the F1's produced by crosses between them. The analysis is illustrated by data on final height for three experiments involving a number of lines of N. rustica grown in different seasons and locations and the outcome is compared with that from statistical analyses. The analyses show that most of the lines exhibit genotype-environmental interaction and for some of the lines the interaction is wholly or partly accounted for by a linear regression on to the environmental values. In the inbred varieties the sensitivity to the environment as measured by the linear regression is correlatedwith the relative mean performance. This correlation, however, has been broken in the progeny of a cross between two of the varieties. The practical implications of breeding for the simultaneous improvement of both the sensitivity to the environment and the relative mean performance are discusses. |
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Palavras-Chave: |
Componente de variancia; Genotype-environmental. |
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Thesagro: |
Melhoramento Genético Vegetal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01577naa a2200169 a 4500
001 1053393
005 1997-04-22
008 1968 bl --- 0-- u #d
100 1 $aPERKINS, J. M.
245 $aEnviromental and genotype-enviromental components of variability. III. Multiple lines and crosses.
260 $c1968
520 $aThe analysis of genotype-environmental interaction developed in earlier papers in this series for a pair of inbred lines and their F1 has been extended to many inbred lines and the F1's produced by crosses between them. The analysis is illustrated by data on final height for three experiments involving a number of lines of N. rustica grown in different seasons and locations and the outcome is compared with that from statistical analyses. The analyses show that most of the lines exhibit genotype-environmental interaction and for some of the lines the interaction is wholly or partly accounted for by a linear regression on to the environmental values. In the inbred varieties the sensitivity to the environment as measured by the linear regression is correlatedwith the relative mean performance. This correlation, however, has been broken in the progeny of a cross between two of the varieties. The practical implications of breeding for the simultaneous improvement of both the sensitivity to the environment and the relative mean performance are discusses.
650 $aMelhoramento Genético Vegetal
653 $aComponente de variancia
653 $aGenotype-environmental
700 1 $aJINKS, J. L.
773 $tHeredity$gv. 23, p. 339-356, 1968.
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Embrapa Meio-Norte (CPAMN) |
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