Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal

Detalhes bibliográficos
Autor(a) principal: Aguiar,Alexandre
Data de Publicação: 2003
Outros Autores: Almeida,Maria Helena, Borralho,Nuno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-63522003000200001
Resumo: A Pinus pinaster Ait. progeny trial involving 46 open pollinated families was established at two locations in Portugal (Leiria and Escaroupim). Height, diameter, Pilodyn and stem characteristics (straightness, branch size and number of whorls) were assessed at age 5 and 12 and were used to estimate variance components, heritability, phenotypic and genetic correlations between traits. Estimates varied considerably between the two sites. However, this study indicates that the heritability for height followed the general pattern of increasing with the age of the trees. A strong and favourable genetic correlation between the stem form and branching was also found. Heritability of Pilodyn was very low, suggesting that measurements taken at age 12 were not a reliable measure of wood density, probably due to the high proportion of juvenile wood.
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spelling Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugalprogeny trialvariance componentsheritabilitygenetic correlationsPinus pinaster Ait.A Pinus pinaster Ait. progeny trial involving 46 open pollinated families was established at two locations in Portugal (Leiria and Escaroupim). Height, diameter, Pilodyn and stem characteristics (straightness, branch size and number of whorls) were assessed at age 5 and 12 and were used to estimate variance components, heritability, phenotypic and genetic correlations between traits. Estimates varied considerably between the two sites. However, this study indicates that the heritability for height followed the general pattern of increasing with the age of the trees. A strong and favourable genetic correlation between the stem form and branching was also found. Heritability of Pilodyn was very low, suggesting that measurements taken at age 12 were not a reliable measure of wood density, probably due to the high proportion of juvenile wood.Unidade de Silvicultura e Produtos Florestais2003-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-63522003000200001Silva Lusitana v.11 n.2 2003reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-63522003000200001Aguiar,AlexandreAlmeida,Maria HelenaBorralho,Nunoinfo:eu-repo/semantics/openAccess2024-02-06T16:59:00Zoai:scielo:S0870-63522003000200001Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:15:28.762873Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
title Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
spellingShingle Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
Aguiar,Alexandre
progeny trial
variance components
heritability
genetic correlations
Pinus pinaster Ait.
title_short Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
title_full Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
title_fullStr Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
title_full_unstemmed Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
title_sort Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
author Aguiar,Alexandre
author_facet Aguiar,Alexandre
Almeida,Maria Helena
Borralho,Nuno
author_role author
author2 Almeida,Maria Helena
Borralho,Nuno
author2_role author
author
dc.contributor.author.fl_str_mv Aguiar,Alexandre
Almeida,Maria Helena
Borralho,Nuno
dc.subject.por.fl_str_mv progeny trial
variance components
heritability
genetic correlations
Pinus pinaster Ait.
topic progeny trial
variance components
heritability
genetic correlations
Pinus pinaster Ait.
description A Pinus pinaster Ait. progeny trial involving 46 open pollinated families was established at two locations in Portugal (Leiria and Escaroupim). Height, diameter, Pilodyn and stem characteristics (straightness, branch size and number of whorls) were assessed at age 5 and 12 and were used to estimate variance components, heritability, phenotypic and genetic correlations between traits. Estimates varied considerably between the two sites. However, this study indicates that the heritability for height followed the general pattern of increasing with the age of the trees. A strong and favourable genetic correlation between the stem form and branching was also found. Heritability of Pilodyn was very low, suggesting that measurements taken at age 12 were not a reliable measure of wood density, probably due to the high proportion of juvenile wood.
publishDate 2003
dc.date.none.fl_str_mv 2003-12-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-63522003000200001
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-63522003000200001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-63522003000200001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Unidade de Silvicultura e Produtos Florestais
publisher.none.fl_str_mv Unidade de Silvicultura e Produtos Florestais
dc.source.none.fl_str_mv Silva Lusitana v.11 n.2 2003
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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