Thinning effects on wood quality of slash pine

Detalhes bibliográficos
Autor(a) principal: Pereira, José Carlos Duarte
Data de Publicação: 2004
Outros Autores: Tomaselli, Ivan
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/1587
Resumo: This paper deals with the effect of thinning intensities on the wood quality of Pinus elliottii Engelm var. elliottii produced in plantations located in Southern Brazil. The following properties were analized: growth ring width, basic density, late wood percentage, fiber angle, chemical composition, fiber dimensions, shrinkage and static bending strength. The results pointed out that a higher thinning intensity increases basic density, late wood percent, growth ring width, grain angle, as well as tracheid and lumen diameter. Tracheid lenght and shrinkage decreased with increasing thinning intensity. Chemical composition and cell wall thicknesses were not affected. Wood produced in plots where 25% of its basal area was thinned had the higher static bending strength.
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spelling Thinning effects on wood quality of slash pineA influência do desbaste na qualidade da madeira de Pinus elliottii Engelm. var. elliottiiPinus elliottii var. elliottiiIntensidade de desbastePropriedades da madeiraPinus elliottii var. elliottiiSlash pineThinning intensityWood propertiesThis paper deals with the effect of thinning intensities on the wood quality of Pinus elliottii Engelm var. elliottii produced in plantations located in Southern Brazil. The following properties were analized: growth ring width, basic density, late wood percentage, fiber angle, chemical composition, fiber dimensions, shrinkage and static bending strength. The results pointed out that a higher thinning intensity increases basic density, late wood percent, growth ring width, grain angle, as well as tracheid and lumen diameter. Tracheid lenght and shrinkage decreased with increasing thinning intensity. Chemical composition and cell wall thicknesses were not affected. Wood produced in plots where 25% of its basal area was thinned had the higher static bending strength.Como subsídio para o aprimoramento da qualidade da madeira de Pinus elliottii Engelm var. elliottii, plantado no sul do Brasil, foram estudados os efeitos de diferentes intensidades de desbaste em algumas de suas principais propriedades. Em função do aumento da intensidade de desbaste, observaram-se tendências de aumento da densidade básica, teor de lenho tardio, espessura dos anéis de crescimento, ângulo de inclinação das fibras e diâmetros externo e interno (lúmen) dos traqueóides. O comprimento dos traqueóides e os coeficientes de retratibilidade revelaram tendências inversas. Os teores de pentosana, lignina e celulose não foram significativamente influenciados pelo desbaste. A resistência à flexão estática apresentou seus maiores valores na madeira produzida nas parcelas submetidas a desbaste moderado, nas quais 25% da área basal foi removida.Embrapa Florestas2004-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1587Pesquisa Florestal Brasileira; n. 49 (2004): jul./dez.; 61-81Pesquisa Florestal Brasileira; No. 49 (2004): jul./dez.; 61-811983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1587/628Pereira, José Carlos DuarteTomaselli, Ivaninfo:eu-repo/semantics/openAccess2018-03-22T16:21:17Zoai:pfb.cnpf.embrapa.br/pfb:article/1587Revistahttps://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:2018-03-22T16:21:17Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Thinning effects on wood quality of slash pine
A influência do desbaste na qualidade da madeira de Pinus elliottii Engelm. var. elliottii
title Thinning effects on wood quality of slash pine
spellingShingle Thinning effects on wood quality of slash pine
Pereira, José Carlos Duarte
Pinus elliottii var. elliottii
Intensidade de desbaste
Propriedades da madeira
Pinus elliottii var. elliottii
Slash pine
Thinning intensity
Wood properties
title_short Thinning effects on wood quality of slash pine
title_full Thinning effects on wood quality of slash pine
title_fullStr Thinning effects on wood quality of slash pine
title_full_unstemmed Thinning effects on wood quality of slash pine
title_sort Thinning effects on wood quality of slash pine
author Pereira, José Carlos Duarte
author_facet Pereira, José Carlos Duarte
Tomaselli, Ivan
author_role author
author2 Tomaselli, Ivan
author2_role author
dc.contributor.author.fl_str_mv Pereira, José Carlos Duarte
Tomaselli, Ivan
dc.subject.por.fl_str_mv Pinus elliottii var. elliottii
Intensidade de desbaste
Propriedades da madeira
Pinus elliottii var. elliottii
Slash pine
Thinning intensity
Wood properties
topic Pinus elliottii var. elliottii
Intensidade de desbaste
Propriedades da madeira
Pinus elliottii var. elliottii
Slash pine
Thinning intensity
Wood properties
description This paper deals with the effect of thinning intensities on the wood quality of Pinus elliottii Engelm var. elliottii produced in plantations located in Southern Brazil. The following properties were analized: growth ring width, basic density, late wood percentage, fiber angle, chemical composition, fiber dimensions, shrinkage and static bending strength. The results pointed out that a higher thinning intensity increases basic density, late wood percent, growth ring width, grain angle, as well as tracheid and lumen diameter. Tracheid lenght and shrinkage decreased with increasing thinning intensity. Chemical composition and cell wall thicknesses were not affected. Wood produced in plots where 25% of its basal area was thinned had the higher static bending strength.
publishDate 2004
dc.date.none.fl_str_mv 2004-12-30
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/1587
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1587
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/1587/628
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 Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; n. 49 (2004): jul./dez.; 61-81
Pesquisa Florestal Brasileira; No. 49 (2004): jul./dez.; 61-81
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
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