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Revista de Ciências Agrárias
Article . 2018 . Peer-reviewed
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Revista de Ciências Agrárias
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Características físicas e anatômicas da madeira de Tectona grandis L.f. aos 7 anos de idade

Anatomical and physical properties of wood of 7-year-old Tectona grandis L.f.
Authors: Gil,Júlia Lobo Ribeiro Anciotti; Barboza,Frederico Severino; Coneglian,Ademilson; Sette Jr.,Carlos Roberto; Silva,Macksuel Fernades da; Moraes,Mariana Dianese Alves de;

Características físicas e anatômicas da madeira de Tectona grandis L.f. aos 7 anos de idade

Abstract

Este trabalho objetivou a caracterização física e anatômica da madeira de Tectona grandis obtida do desbaste, aos 7 anos. Foram selecionadas cinco árvores de plantio comercial e cortados discos de madeira em diferentes posições base-topo (0, 25, 50, 75 e 100% da altura total) para a determinação da densidade básica e obtidos corpos de prova em três posições radiais (0, 50 e 100% do raio), por disco de madeira, para a determinação das dimensões das fibras (comprimento, largura, diâmetro do lúmen e espessura da parede) e dos vasos (diâmetro, área ocupada e frequência). Foram cortados ainda toretes da região basal do tronco e obtidos corpos de prova para a determinação da retratibilidade da madeira (retração, inchamento e fator anisotrópico). A densidade média encontrada foi de 0,40 g.cm-3. Os valores médios encontrados de retração axial e radial, retratibilidade volumétrica e fator anisotrópico de retração são consideravelmente altos, indicando instabilidade dimensional da espécie. As avaliações das características físicas e anatômicas da madeira de desbaste de T. grandis, aos sete anos, indicaram que as estruturas formadas pelo câmbio ainda não atingiram a estabilização das suas dimensões, não sendo indicada para as aplicações da madeira adulta de Teca como na construção naval e movelaria.

Revista de Ciências Agrárias, vol. 41 n.º 2 (2018)

Keywords

Teca, posições base-topo e radiais, qualidade de madeira

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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gold