Pruning effects on growth ring thickness and wood density of Pinus taeda L.

Detalhes bibliográficos
Autor(a) principal: Pereira, José Carlos Duarte
Data de Publicação: 2003
Outros Autores: Ahrens, Sérgio
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/1617
Resumo: Effects of pruning on growth ring thickness and density were studied in young trees of Pinus taeda L. A reduction in growth ring thickness and an increase in density were found only in the first year after the most severe pruning, in which branches were removed up to 3,0 m height. Pruning had no effect on wood density in the following years. On the other hand, there was a significant increase in ring thickness after the initial reduction in the first year, suggesting the existence of a negative trophic balance in the lower branches. If properly applied, pruning can improve both growth process and wood quality of the main stem.
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spelling Pruning effects on growth ring thickness and wood density of Pinus taeda L.Efeito da desrama artificial sobre a espessura e a densidade dos anéis de crescimento de Pinus taeda L.Pinus taedaPodaMadeiraPinus taedaPruningWoodEffects of pruning on growth ring thickness and density were studied in young trees of Pinus taeda L. A reduction in growth ring thickness and an increase in density were found only in the first year after the most severe pruning, in which branches were removed up to 3,0 m height. Pruning had no effect on wood density in the following years. On the other hand, there was a significant increase in ring thickness after the initial reduction in the first year, suggesting the existence of a negative trophic balance in the lower branches. If properly applied, pruning can improve both growth process and wood quality of the main stem.Estudou-se o efeito da desrama sobre a espessura e a densidade dos anéis de crescimento de árvores jovens de Pinus taeda L, na posição correspondente ao DAP, a 1,30 m de altura. Nos anéis de crescimento formados no primeiro ano após a aplicação dos tratamentos, observou-se um aumento nas respectivas densidades apenas para o tratamento mais severo, correspondente à remoção dos ramos até a altura de 3,0 m, aos quatro anos de idade. Este efeito não foi observado nos anos subsequentes. Com relação à espessura dos anéis, constatou-se uma redução inicial no primeiro ano após a desrama, também apenas para o tratamento mais severo. Ambos os tratamentos em que se praticou a desrama determinaram um acréscimo significativo na espessura dos anéis, nos terceiro e quarto anos subseqüentes, sugerindo um balanço trófico negativo dos ramos inferiores da copa naquele período. Assim, se aplicada adequadamente, a desrama pode contribuir para o crescimento do fuste, além de melhorar a qualidade da madeiraEmbrapa Florestas2003-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1617Pesquisa Florestal Brasileira; n. 46 (2003): jan./jun.; 47-56Pesquisa Florestal Brasileira; No. 46 (2003): jan./jun.; 47-561983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1617/625Pereira, José Carlos DuarteAhrens, Sérgioinfo:eu-repo/semantics/openAccess2018-03-22T17:49:20Zoai:pfb.cnpf.embrapa.br/pfb:article/1617Revistahttps://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:2018-03-22T17:49:20Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Pruning effects on growth ring thickness and wood density of Pinus taeda L.
Efeito da desrama artificial sobre a espessura e a densidade dos anéis de crescimento de Pinus taeda L.
title Pruning effects on growth ring thickness and wood density of Pinus taeda L.
spellingShingle Pruning effects on growth ring thickness and wood density of Pinus taeda L.
Pereira, José Carlos Duarte
Pinus taeda
Poda
Madeira
Pinus taeda
Pruning
Wood
title_short Pruning effects on growth ring thickness and wood density of Pinus taeda L.
title_full Pruning effects on growth ring thickness and wood density of Pinus taeda L.
title_fullStr Pruning effects on growth ring thickness and wood density of Pinus taeda L.
title_full_unstemmed Pruning effects on growth ring thickness and wood density of Pinus taeda L.
title_sort Pruning effects on growth ring thickness and wood density of Pinus taeda L.
author Pereira, José Carlos Duarte
author_facet Pereira, José Carlos Duarte
Ahrens, Sérgio
author_role author
author2 Ahrens, Sérgio
author2_role author
dc.contributor.author.fl_str_mv Pereira, José Carlos Duarte
Ahrens, Sérgio
dc.subject.por.fl_str_mv Pinus taeda
Poda
Madeira
Pinus taeda
Pruning
Wood
topic Pinus taeda
Poda
Madeira
Pinus taeda
Pruning
Wood
description Effects of pruning on growth ring thickness and density were studied in young trees of Pinus taeda L. A reduction in growth ring thickness and an increase in density were found only in the first year after the most severe pruning, in which branches were removed up to 3,0 m height. Pruning had no effect on wood density in the following years. On the other hand, there was a significant increase in ring thickness after the initial reduction in the first year, suggesting the existence of a negative trophic balance in the lower branches. If properly applied, pruning can improve both growth process and wood quality of the main stem.
publishDate 2003
dc.date.none.fl_str_mv 2003-06-30
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/1617
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1617
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/1617/625
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. 46 (2003): jan./jun.; 47-56
Pesquisa Florestal Brasileira; No. 46 (2003): jan./jun.; 47-56
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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