ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/1113 |
Resumo: | The objective of this study was to evaluate the anatomical characteristics and wood physical-mechanical properties of two African mahogany species (Khaya ivorensis and Khaya senegalensis). Five trees of each species with 19-years-old, proceeding from experimental parcels in the areas of the Reserva Natural Vale, located in Sooretama, Espírito Santo State, Brazil. For the anatomical characteristics samples were taken at the position of transition between heartwood and sapwood (peripheral heart). In the evaluation of the specific density were used two opposing wedges from discs gotten in the corresponding region to the diameter the height of the breast (DHB), taken the 1,30 m of the ground, and in positions 0, 25, 50, 75 and 100% of the commercial height of the tree. For shrinkage 20 samples obtained randomly throughout the trunk of each species. The mechanical tests were carried through in removed samples of the central large plank, to the discarded the pith. The species were different how much to the type and frequency of vases and porosity. Rays were predominantly multiseriates, heterocellulars and fibers are libriform. The wood of Khaya ivorensis has low specific density and wood of Khaya senegalensis has medium specific density. The two wood species have normal dimensional stability. In relation the mechanical properties, the Khaya senegalensis wood had the biggest values for all the carried through tests. |
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Cerne (Online) |
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ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIESKhaya ivorensisKhaya senegalensisWood Properties.The objective of this study was to evaluate the anatomical characteristics and wood physical-mechanical properties of two African mahogany species (Khaya ivorensis and Khaya senegalensis). Five trees of each species with 19-years-old, proceeding from experimental parcels in the areas of the Reserva Natural Vale, located in Sooretama, Espírito Santo State, Brazil. For the anatomical characteristics samples were taken at the position of transition between heartwood and sapwood (peripheral heart). In the evaluation of the specific density were used two opposing wedges from discs gotten in the corresponding region to the diameter the height of the breast (DHB), taken the 1,30 m of the ground, and in positions 0, 25, 50, 75 and 100% of the commercial height of the tree. For shrinkage 20 samples obtained randomly throughout the trunk of each species. The mechanical tests were carried through in removed samples of the central large plank, to the discarded the pith. The species were different how much to the type and frequency of vases and porosity. Rays were predominantly multiseriates, heterocellulars and fibers are libriform. The wood of Khaya ivorensis has low specific density and wood of Khaya senegalensis has medium specific density. The two wood species have normal dimensional stability. In relation the mechanical properties, the Khaya senegalensis wood had the biggest values for all the carried through tests.CERNECERNE2016-04-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/1113CERNE; Vol. 21 No. 4 (2015); 633-640CERNE; v. 21 n. 4 (2015); 633-6402317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://cerne.ufla.br/site/index.php/CERNE/article/view/1113/874Copyright (c) 2016 CERNEinfo:eu-repo/semantics/openAccessFrança, Tâmara Suely Filgueira AmorimArantes, Marina Donária ChavesPaes, Juarez BenignoVidaurre, Graziela BaptistaOliveira, José Tarcísio da SilvaBaraúna, Edy Eime Pereira2016-04-19T15:00:16Zoai:cerne.ufla.br:article/1113Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2016-04-19T15:00:16Cerne (Online) - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
title |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
spellingShingle |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES França, Tâmara Suely Filgueira Amorim Khaya ivorensis Khaya senegalensis Wood Properties. |
title_short |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
title_full |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
title_fullStr |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
title_full_unstemmed |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
title_sort |
ANATOMICAL CHARACTERISTICS AND WOOD PHYSICAL- MECHANICAL PROPERTIES OF TWO AFRICAN MAHOGANY SPECIES |
author |
França, Tâmara Suely Filgueira Amorim |
author_facet |
França, Tâmara Suely Filgueira Amorim Arantes, Marina Donária Chaves Paes, Juarez Benigno Vidaurre, Graziela Baptista Oliveira, José Tarcísio da Silva Baraúna, Edy Eime Pereira |
author_role |
author |
author2 |
Arantes, Marina Donária Chaves Paes, Juarez Benigno Vidaurre, Graziela Baptista Oliveira, José Tarcísio da Silva Baraúna, Edy Eime Pereira |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
França, Tâmara Suely Filgueira Amorim Arantes, Marina Donária Chaves Paes, Juarez Benigno Vidaurre, Graziela Baptista Oliveira, José Tarcísio da Silva Baraúna, Edy Eime Pereira |
dc.subject.por.fl_str_mv |
Khaya ivorensis Khaya senegalensis Wood Properties. |
topic |
Khaya ivorensis Khaya senegalensis Wood Properties. |
description |
The objective of this study was to evaluate the anatomical characteristics and wood physical-mechanical properties of two African mahogany species (Khaya ivorensis and Khaya senegalensis). Five trees of each species with 19-years-old, proceeding from experimental parcels in the areas of the Reserva Natural Vale, located in Sooretama, Espírito Santo State, Brazil. For the anatomical characteristics samples were taken at the position of transition between heartwood and sapwood (peripheral heart). In the evaluation of the specific density were used two opposing wedges from discs gotten in the corresponding region to the diameter the height of the breast (DHB), taken the 1,30 m of the ground, and in positions 0, 25, 50, 75 and 100% of the commercial height of the tree. For shrinkage 20 samples obtained randomly throughout the trunk of each species. The mechanical tests were carried through in removed samples of the central large plank, to the discarded the pith. The species were different how much to the type and frequency of vases and porosity. Rays were predominantly multiseriates, heterocellulars and fibers are libriform. The wood of Khaya ivorensis has low specific density and wood of Khaya senegalensis has medium specific density. The two wood species have normal dimensional stability. In relation the mechanical properties, the Khaya senegalensis wood had the biggest values for all the carried through tests. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-19 |
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://cerne.ufla.br/site/index.php/CERNE/article/view/1113 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/1113 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/1113/874 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 21 No. 4 (2015); 633-640 CERNE; v. 21 n. 4 (2015); 633-640 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1789440344701534208 |