| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Prediction of Hevea progeny performance in the presence of genotype-environment interaction
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| Autores: |
Gonçalves,Paulo de Souza
Moraes,Mário Luiz Teixeira de
Silva,Marcelo de Almeida
Gouvêa,Lígia Regina Lima
Aguiar,Adriano Tosoni da Eira
Costa,Reginaldo Brito da
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| Data: |
2009-02-01
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| Ano: |
2009
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| Palavras-chave: |
Hevea brasiliensis
Stability
Adaptability
Environmental index
Linear regression
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| Resumo: |
Twenty two open-pollinated Hevea progenies from different parental clones of the Asian origin were tested at five sites in the Northwestern São Paulo State Brazil to investigate the progeny girth growth, rubber yield, bark thickness and plant height. Except for the rubber yield, the analysis of variance indicated highly significant (p<0.01) genotype x environment interaction and heterogeneity of regressions among the progenies. However, the regression stability analysis identified only a few interacting progenies which had regression coefficients significantly different from the expected value of one. The linear regressions of the progeny mean performance at each test on an environmental index (mean of all the progenies in each test) showed the general stability and adaptability of most selected Hevea progenies over the test environments. The few progenies which were responsive and high yielding on different test sites could be used to maximize the rubber cultivars productivity and to obtain the best use of the genetically improved stock under different environmental conditions.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100004
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132009000100004
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.52 n.1 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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