Components of variance and interaction between genotype and environment for annual girth increment in rubber tree

Detalhes bibliográficos
Autor(a) principal: Gonçalves, Paulo de Souza
Data de Publicação: 1998
Outros Autores: Gallo, Paulo Boller, Segnini Junior, Ivo, Ortolani, Altino Aldo, Brioschi, Afonso Pedro, Landell, Marcos Guimarães, de Souza, Sérgio Ricardo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/4966
Resumo: To determine the nature and extent of genetical and environmental control of vigour through annual girth increment in rubber trees [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.], seven clones were studied in a replicated trial in São Paulo State at four different locations. The clones represented a range of imported germoplasm while the locations were selected to represent a range of rubber growing areas. Trees were studied for annual girth increment over five years before the initiation of tapping for latex. The results of the analyses show a consistent decrease in genetic component over the five years from 10 per cent to 0.5 per cent with a corresponding increase in the effect of environment (19.0 per cent to 93.0 per cent). The genotype x environment effects from combined analysis were significant for three factor analysis of variance. Genetic correlations between locations for annual girth increment revealed a consistent positive and significant correlation between Mococa and Matão in the fifth year (rg= 0.7128), Ribeirão Preto and Matão in the fifth year (rg=0.7113) and Ribeirão Preto and Presidente Prudente in the fourth year (rg=0.9367). The implications of these findings in selection of rubber for annual girth increment trait are discussed.
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spelling Components of variance and interaction between genotype and environment for annual girth increment in rubber treeComponentes de variância e interação entre genótipo e ambiente no incremento anual do caule em seringueiraHevea brasiliensis; clones; genetic correlationsHevea brasiliensis; clones; correlações genéticasTo determine the nature and extent of genetical and environmental control of vigour through annual girth increment in rubber trees [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.], seven clones were studied in a replicated trial in São Paulo State at four different locations. The clones represented a range of imported germoplasm while the locations were selected to represent a range of rubber growing areas. Trees were studied for annual girth increment over five years before the initiation of tapping for latex. The results of the analyses show a consistent decrease in genetic component over the five years from 10 per cent to 0.5 per cent with a corresponding increase in the effect of environment (19.0 per cent to 93.0 per cent). The genotype x environment effects from combined analysis were significant for three factor analysis of variance. Genetic correlations between locations for annual girth increment revealed a consistent positive and significant correlation between Mococa and Matão in the fifth year (rg= 0.7128), Ribeirão Preto and Matão in the fifth year (rg=0.7113) and Ribeirão Preto and Presidente Prudente in the fourth year (rg=0.9367). The implications of these findings in selection of rubber for annual girth increment trait are discussed.Com o objetivo de determinar a natureza da grandeza e controle genético e ambiental do vigor através do incremento anual do caule em seringueira [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.], sete clones foram estudados em quatro diferentes locais do Estado de São Paulo. Os clones em estudo, na sua maioria, são de origem asiática, e os locais selecionados representam as diferentes regiões da heveicultura do Estado. O incremento anual da circunferência das árvores de cada local foi obtido por um período de cinco anos antes do início da sangria para obtenção do látex. Os resultados das análises mostraram uma redução consistente no componente genético, no período de cinco anos, de 10,0 a 0,5 por cento, com um aumento correspondente no efeito do ambiente de 19,0 a 93,0 por cento. Os efeitos de genótipo x ambiente da análise de variância agrupada foram significantes para análise de variância de três fatores (genótipos x locais x anos). Correlações genéticas entre locais para o incremento anual do caule mostraram valores positivos entre Mococa e Matão no quinto ano (rg = 0,7128), Ribeirão Preto e Matão no quinto ano (rg = 0,7113), e Ribeirão Preto e Presidente Prudente no quarto ano (rg = 0,9367). Discutem-se as implicações destes resultados em relação à seleção de clones com base no incremento anual do caule.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGonçalves, Paulo de SouzaGallo, Paulo BollerSegnini Junior, IvoOrtolani, Altino AldoBrioschi, Afonso PedroLandell, Marcos Guimarãesde Souza, Sérgio Ricardo1998-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4966Pesquisa Agropecuaria Brasileira; v.33, n.8, ago. 1998; 1329-1337Pesquisa Agropecuária Brasileira; v.33, n.8, ago. 1998; 1329-13371678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/4966/7108info:eu-repo/semantics/openAccess2015-01-08T15:26:44Zoai:ojs.seer.sct.embrapa.br:article/4966Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2015-01-08T15:26:44Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
Componentes de variância e interação entre genótipo e ambiente no incremento anual do caule em seringueira
title Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
spellingShingle Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
Gonçalves, Paulo de Souza
Hevea brasiliensis; clones; genetic correlations
Hevea brasiliensis; clones; correlações genéticas
title_short Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
title_full Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
title_fullStr Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
title_full_unstemmed Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
title_sort Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
author Gonçalves, Paulo de Souza
author_facet Gonçalves, Paulo de Souza
Gallo, Paulo Boller
Segnini Junior, Ivo
Ortolani, Altino Aldo
Brioschi, Afonso Pedro
Landell, Marcos Guimarães
de Souza, Sérgio Ricardo
author_role author
author2 Gallo, Paulo Boller
Segnini Junior, Ivo
Ortolani, Altino Aldo
Brioschi, Afonso Pedro
Landell, Marcos Guimarães
de Souza, Sérgio Ricardo
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Gonçalves, Paulo de Souza
Gallo, Paulo Boller
Segnini Junior, Ivo
Ortolani, Altino Aldo
Brioschi, Afonso Pedro
Landell, Marcos Guimarães
de Souza, Sérgio Ricardo
dc.subject.por.fl_str_mv Hevea brasiliensis; clones; genetic correlations
Hevea brasiliensis; clones; correlações genéticas
topic Hevea brasiliensis; clones; genetic correlations
Hevea brasiliensis; clones; correlações genéticas
description To determine the nature and extent of genetical and environmental control of vigour through annual girth increment in rubber trees [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.], seven clones were studied in a replicated trial in São Paulo State at four different locations. The clones represented a range of imported germoplasm while the locations were selected to represent a range of rubber growing areas. Trees were studied for annual girth increment over five years before the initiation of tapping for latex. The results of the analyses show a consistent decrease in genetic component over the five years from 10 per cent to 0.5 per cent with a corresponding increase in the effect of environment (19.0 per cent to 93.0 per cent). The genotype x environment effects from combined analysis were significant for three factor analysis of variance. Genetic correlations between locations for annual girth increment revealed a consistent positive and significant correlation between Mococa and Matão in the fifth year (rg= 0.7128), Ribeirão Preto and Matão in the fifth year (rg=0.7113) and Ribeirão Preto and Presidente Prudente in the fourth year (rg=0.9367). The implications of these findings in selection of rubber for annual girth increment trait are discussed.
publishDate 1998
dc.date.none.fl_str_mv 1998-08-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/4966
url https://seer.sct.embrapa.br/index.php/pab/article/view/4966
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/4966/7108
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.33, n.8, ago. 1998; 1329-1337
Pesquisa Agropecuária Brasileira; v.33, n.8, ago. 1998; 1329-1337
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
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instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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