Components of variance and interaction between genotype and environment for annual girth increment in rubber tree
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , , , , , |
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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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) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
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) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416698788839424 |