Characterization of sawn wood of Eucalyptus clones

Detalhes bibliográficos
Autor(a) principal: de Lima, Israel Luiz
Data de Publicação: 2017
Outros Autores: Stape, José Luiz
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1113
Resumo: The object of this work was to characterize sawn wood of Eucalyptus clones with 7 to 13 years old planted on Entre Rios and Esplanada regions, Bahia State. For comparison and reference Eucalyptus cloeziana samples with 22 years old were used, as this species present great saw timber potential. Samples were taken along trees trunks on two vertical and three radial positions. Differences were observed among clones and radial position for end splitting of dry lumber, bowing and bending indexes, and number of knots although there was no evidence of difference due to log position along the trunk. All materials presented high incidence of knots. End splitting of the dry lumber and bending indexes and number of knots decreased from pith to bark, while bowing tended to increase.
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spelling Characterization of sawn wood of Eucalyptus clonesCaracterização da madeira serrada em clones de EucalyptusTimberWood defectsGrowth stressesProduto florestalDefeito da madeiraTensão de crescimentoThe object of this work was to characterize sawn wood of Eucalyptus clones with 7 to 13 years old planted on Entre Rios and Esplanada regions, Bahia State. For comparison and reference Eucalyptus cloeziana samples with 22 years old were used, as this species present great saw timber potential. Samples were taken along trees trunks on two vertical and three radial positions. Differences were observed among clones and radial position for end splitting of dry lumber, bowing and bending indexes, and number of knots although there was no evidence of difference due to log position along the trunk. All materials presented high incidence of knots. End splitting of the dry lumber and bending indexes and number of knots decreased from pith to bark, while bowing tended to increase.O objetivo desse trabalho foi caracterizar a madeira serrada de clones de Eucalyptus com 7 a 13 anos, plantados comercialmente na região de Entre Rios e Esplanada, BA. Para efeito de comparação e como referência, foram utilizadas amostras de Eucalyptus cloeziana com 22 anos, em função da ótima aptidão dessa espécie para serraria. As amostras foram retiradas em duas posições verticais e três posições radiais ao longo do tronco das árvores. Foram observadas diferenças entre clones e posição radial para o índice de rachaduras de extremidade de tábuas secas, flecha de encurvamento, flecha de arqueamento e quantidade de nós, enquanto não houve diferenças em relação à posição da tora ao longo do fuste. Todos os materiais apresentaram alta incidência de nós. As rachaduras de tábua seca, arqueamento e quantidade de nós diminuem no sentido medula-casca, enquanto que o encurvamento tende a aumentar.Embrapa Florestas2017-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/111310.4336/2017.pfb.37.89.1113Pesquisa Florestal Brasileira; v. 37 n. 89 (2017): jan./mar.; 55-62Pesquisa Florestal Brasileira; Vol. 37 No. 89 (2017): jan./mar.; 55-621983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1113/557Copyright (c) 2017 Israel Luiz de Lima, José Luiz Stapehttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessde Lima, Israel LuizStape, José Luiz2018-01-07T18:59:59Zoai:pfb.cnpf.embrapa.br/pfb:article/1113Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2018-01-07T18:59:59Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Characterization of sawn wood of Eucalyptus clones
Caracterização da madeira serrada em clones de Eucalyptus
title Characterization of sawn wood of Eucalyptus clones
spellingShingle Characterization of sawn wood of Eucalyptus clones
de Lima, Israel Luiz
Timber
Wood defects
Growth stresses
Produto florestal
Defeito da madeira
Tensão de crescimento
title_short Characterization of sawn wood of Eucalyptus clones
title_full Characterization of sawn wood of Eucalyptus clones
title_fullStr Characterization of sawn wood of Eucalyptus clones
title_full_unstemmed Characterization of sawn wood of Eucalyptus clones
title_sort Characterization of sawn wood of Eucalyptus clones
author de Lima, Israel Luiz
author_facet de Lima, Israel Luiz
Stape, José Luiz
author_role author
author2 Stape, José Luiz
author2_role author
dc.contributor.author.fl_str_mv de Lima, Israel Luiz
Stape, José Luiz
dc.subject.por.fl_str_mv Timber
Wood defects
Growth stresses
Produto florestal
Defeito da madeira
Tensão de crescimento
topic Timber
Wood defects
Growth stresses
Produto florestal
Defeito da madeira
Tensão de crescimento
description The object of this work was to characterize sawn wood of Eucalyptus clones with 7 to 13 years old planted on Entre Rios and Esplanada regions, Bahia State. For comparison and reference Eucalyptus cloeziana samples with 22 years old were used, as this species present great saw timber potential. Samples were taken along trees trunks on two vertical and three radial positions. Differences were observed among clones and radial position for end splitting of dry lumber, bowing and bending indexes, and number of knots although there was no evidence of difference due to log position along the trunk. All materials presented high incidence of knots. End splitting of the dry lumber and bending indexes and number of knots decreased from pith to bark, while bowing tended to increase.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-31
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1113
10.4336/2017.pfb.37.89.1113
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1113
identifier_str_mv 10.4336/2017.pfb.37.89.1113
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1113/557
dc.rights.driver.fl_str_mv Copyright (c) 2017 Israel Luiz de Lima, José Luiz Stape
https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Israel Luiz de Lima, José Luiz Stape
https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 37 n. 89 (2017): jan./mar.; 55-62
Pesquisa Florestal Brasileira; Vol. 37 No. 89 (2017): jan./mar.; 55-62
1983-2605
1809-3647
reponame:Pesquisa Florestal 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 Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
_version_ 1783370935443652608

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