Genetic Control of Growth, Wood Density and Stem Characteristics of Pinus pinaster in Portugal
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
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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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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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1799137254706249728 |