Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density

Abstract: Aim of the study was to estimate the influence of the fiber length and basic density on microfibril angle of Eucalyptus microcorys wood. The study area was in an experimental planting at the Universidade Federal de Lavras, Minas Gerais State, Brazil. Three 37 year-old Eucalyptus microcorys...

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Autores principales:	Melo,Luiz Eduardo de Lima, Goulart,Selma Lopes, Guimarães,Bárbara Maria Ribeiro, Guimarães Neto,Rosalvo Maciel, Sartori,Caroline Junqueira, Lima,José Tarcísio
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2018
Materias:	Eucalypt fiber morphology microfibril slope specific gravity wood variation.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000400553
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spelling	oai:scielo:S0718-221X20180004005532019-02-14Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic densityMelo,Luiz Eduardo de LimaGoulart,Selma LopesGuimarães,Bárbara Maria RibeiroGuimarães Neto,Rosalvo MacielSartori,Caroline JunqueiraLima,José Tarcísio Eucalypt fiber morphology microfibril slope specific gravity wood variation. Abstract: Aim of the study was to estimate the influence of the fiber length and basic density on microfibril angle of Eucalyptus microcorys wood. The study area was in an experimental planting at the Universidade Federal de Lavras, Minas Gerais State, Brazil. Three 37 year-old Eucalyptus microcorys trees were used, from whose stems six centimeter-thick discs were removed, cut at a high of three meters. The disks were sanded and planed to highlight the growth rings. Specimens were taken every 1,5 cm across the radius from pith to bark for determining microfibril angle, fiber length and wood basic density. The microfibril angles were determined by use of polarized light microscopy, while the fiber morphology and basic density were determined by usual methods. The averages found for microfibril angle (12,6°), fiber length (968 µm) and basic density (480 kg.m-3) are, in general, within the range of values reported for these characteristics of wood. The microfibril angle showed accentuated reduction of the average values in the pith-bark direction. The fiber length and basic density showed the opposite behavior. We observed that the density and fiber length may be used as a microfibril angle predictor, accounting for 96% and 79% of its variation, respectively.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.20 n.4 20182018-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000400553en10.4067/S0718-221X2018005004301
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Eucalypt fiber morphology microfibril slope specific gravity wood variation.
spellingShingle	Eucalypt fiber morphology microfibril slope specific gravity wood variation. Melo,Luiz Eduardo de Lima Goulart,Selma Lopes Guimarães,Bárbara Maria Ribeiro Guimarães Neto,Rosalvo Maciel Sartori,Caroline Junqueira Lima,José Tarcísio Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
description	Abstract: Aim of the study was to estimate the influence of the fiber length and basic density on microfibril angle of Eucalyptus microcorys wood. The study area was in an experimental planting at the Universidade Federal de Lavras, Minas Gerais State, Brazil. Three 37 year-old Eucalyptus microcorys trees were used, from whose stems six centimeter-thick discs were removed, cut at a high of three meters. The disks were sanded and planed to highlight the growth rings. Specimens were taken every 1,5 cm across the radius from pith to bark for determining microfibril angle, fiber length and wood basic density. The microfibril angles were determined by use of polarized light microscopy, while the fiber morphology and basic density were determined by usual methods. The averages found for microfibril angle (12,6°), fiber length (968 µm) and basic density (480 kg.m-3) are, in general, within the range of values reported for these characteristics of wood. The microfibril angle showed accentuated reduction of the average values in the pith-bark direction. The fiber length and basic density showed the opposite behavior. We observed that the density and fiber length may be used as a microfibril angle predictor, accounting for 96% and 79% of its variation, respectively.
author	Melo,Luiz Eduardo de Lima Goulart,Selma Lopes Guimarães,Bárbara Maria Ribeiro Guimarães Neto,Rosalvo Maciel Sartori,Caroline Junqueira Lima,José Tarcísio
author_facet	Melo,Luiz Eduardo de Lima Goulart,Selma Lopes Guimarães,Bárbara Maria Ribeiro Guimarães Neto,Rosalvo Maciel Sartori,Caroline Junqueira Lima,José Tarcísio
author_sort	Melo,Luiz Eduardo de Lima
title	Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
title_short	Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
title_full	Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
title_fullStr	Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
title_full_unstemmed	Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
title_sort	prediction of microfibril angle for eucalyptus microcorys wood by fiber length and basic density
publisher	Universidad del Bío-Bío
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000400553
work_keys_str_mv	AT meloluizeduardodelima predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT goulartselmalopes predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT guimaraesbarbaramariaribeiro predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT guimaraesnetorosalvomaciel predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT sartoricarolinejunqueira predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT limajosetarcisio predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity
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Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density

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