Spatial variation of eucalyptus fibres considering the structure of annual growth rings

Detalhes bibliográficos
Autor(a) principal: Mendes, Fabiola Magalhães
Data de Publicação: 2022
Outros Autores: Massuque, Jonas, Carneiro, Angélica de Cássia Oliveira, Pádua, Franciane Andrade de, Hein, Paulo Ricardo Gherardi, Trugilho, Paulo Fernando
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/55438
Resumo: Background: The fibres dimensions vary along a tree trunk, and these variations are related to the apical meristem and vascular cambium activities; understanding these variations would guide the best use of wood. There have been studies on the pattern of fibres dimensions’ variation along the tree trunk in the radial and longitudinal directions; however, the vast majority do not take into account the structure of the annual growth rings. Hence, this study aimed to obtain the pattern of fibres dimensions’ variation and their quality indexes along the tree trunk take into account the structure of the annual growth rings. Two Eucalyptus urophylla x Eucalyptus grandis hybrid clones were used in the study. Ten-year-old trees were selected and discs were removed from 13 longitudinal positions. The disks were prepared and the growth rings were subsequently identified and the samples used for maceration were collected. Twenty fibres were measured in the annual growth rings present in each longitudinal position. Results: In the longitudinal direction, within the annual growth rings, the fibre dimensions and their quality indices did not show a well-defined pattern of variation. In the radial direction, the length, cell wall thickness, wall fraction, and Runkel ratio of the fibres tended to increase following the pith-bark direction, while the lumen diameter and flexibility coefficient decreased. Conclusion: Nevertheless, the fibre width and fibre slenderness index did not present a well-defined pattern of variation in the radial direction.
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spelling Spatial variation of eucalyptus fibres considering the structure of annual growth ringsAnatomy of woodBiometry of fibresFibre characteristicsQuality indexAnatomia da madeiraBiometria de fibrasCaracterísticas da fibraÍndice de qualidadeBackground: The fibres dimensions vary along a tree trunk, and these variations are related to the apical meristem and vascular cambium activities; understanding these variations would guide the best use of wood. There have been studies on the pattern of fibres dimensions’ variation along the tree trunk in the radial and longitudinal directions; however, the vast majority do not take into account the structure of the annual growth rings. Hence, this study aimed to obtain the pattern of fibres dimensions’ variation and their quality indexes along the tree trunk take into account the structure of the annual growth rings. Two Eucalyptus urophylla x Eucalyptus grandis hybrid clones were used in the study. Ten-year-old trees were selected and discs were removed from 13 longitudinal positions. The disks were prepared and the growth rings were subsequently identified and the samples used for maceration were collected. Twenty fibres were measured in the annual growth rings present in each longitudinal position. Results: In the longitudinal direction, within the annual growth rings, the fibre dimensions and their quality indices did not show a well-defined pattern of variation. In the radial direction, the length, cell wall thickness, wall fraction, and Runkel ratio of the fibres tended to increase following the pith-bark direction, while the lumen diameter and flexibility coefficient decreased. Conclusion: Nevertheless, the fibre width and fibre slenderness index did not present a well-defined pattern of variation in the radial direction.Universidade Federal de Lavras2022-11-07T18:29:51Z2022-11-07T18:29:51Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMENDES, F. M. et al. Spatial variation of eucalyptus fibres considering the structure of annual growth rings. Cerne, Lavras, v. 28, e-103056, 2022. DOI: 10.1590/01047760202228013056.http://repositorio.ufla.br/jspui/handle/1/55438Cernereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessMendes, Fabiola MagalhãesMassuque, JonasCarneiro, Angélica de Cássia OliveiraPádua, Franciane Andrade deHein, Paulo Ricardo GherardiTrugilho, Paulo Fernandoeng2022-11-07T18:29:51Zoai:localhost:1/55438Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2022-11-07T18:29:51Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Spatial variation of eucalyptus fibres considering the structure of annual growth rings
title Spatial variation of eucalyptus fibres considering the structure of annual growth rings
spellingShingle Spatial variation of eucalyptus fibres considering the structure of annual growth rings
Mendes, Fabiola Magalhães
Anatomy of wood
Biometry of fibres
Fibre characteristics
Quality index
Anatomia da madeira
Biometria de fibras
Características da fibra
Índice de qualidade
title_short Spatial variation of eucalyptus fibres considering the structure of annual growth rings
title_full Spatial variation of eucalyptus fibres considering the structure of annual growth rings
title_fullStr Spatial variation of eucalyptus fibres considering the structure of annual growth rings
title_full_unstemmed Spatial variation of eucalyptus fibres considering the structure of annual growth rings
title_sort Spatial variation of eucalyptus fibres considering the structure of annual growth rings
author Mendes, Fabiola Magalhães
author_facet Mendes, Fabiola Magalhães
Massuque, Jonas
Carneiro, Angélica de Cássia Oliveira
Pádua, Franciane Andrade de
Hein, Paulo Ricardo Gherardi
Trugilho, Paulo Fernando
author_role author
author2 Massuque, Jonas
Carneiro, Angélica de Cássia Oliveira
Pádua, Franciane Andrade de
Hein, Paulo Ricardo Gherardi
Trugilho, Paulo Fernando
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mendes, Fabiola Magalhães
Massuque, Jonas
Carneiro, Angélica de Cássia Oliveira
Pádua, Franciane Andrade de
Hein, Paulo Ricardo Gherardi
Trugilho, Paulo Fernando
dc.subject.por.fl_str_mv Anatomy of wood
Biometry of fibres
Fibre characteristics
Quality index
Anatomia da madeira
Biometria de fibras
Características da fibra
Índice de qualidade
topic Anatomy of wood
Biometry of fibres
Fibre characteristics
Quality index
Anatomia da madeira
Biometria de fibras
Características da fibra
Índice de qualidade
description Background: The fibres dimensions vary along a tree trunk, and these variations are related to the apical meristem and vascular cambium activities; understanding these variations would guide the best use of wood. There have been studies on the pattern of fibres dimensions’ variation along the tree trunk in the radial and longitudinal directions; however, the vast majority do not take into account the structure of the annual growth rings. Hence, this study aimed to obtain the pattern of fibres dimensions’ variation and their quality indexes along the tree trunk take into account the structure of the annual growth rings. Two Eucalyptus urophylla x Eucalyptus grandis hybrid clones were used in the study. Ten-year-old trees were selected and discs were removed from 13 longitudinal positions. The disks were prepared and the growth rings were subsequently identified and the samples used for maceration were collected. Twenty fibres were measured in the annual growth rings present in each longitudinal position. Results: In the longitudinal direction, within the annual growth rings, the fibre dimensions and their quality indices did not show a well-defined pattern of variation. In the radial direction, the length, cell wall thickness, wall fraction, and Runkel ratio of the fibres tended to increase following the pith-bark direction, while the lumen diameter and flexibility coefficient decreased. Conclusion: Nevertheless, the fibre width and fibre slenderness index did not present a well-defined pattern of variation in the radial direction.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-07T18:29:51Z
2022-11-07T18:29:51Z
2022
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv MENDES, F. M. et al. Spatial variation of eucalyptus fibres considering the structure of annual growth rings. Cerne, Lavras, v. 28, e-103056, 2022. DOI: 10.1590/01047760202228013056.
http://repositorio.ufla.br/jspui/handle/1/55438
identifier_str_mv MENDES, F. M. et al. Spatial variation of eucalyptus fibres considering the structure of annual growth rings. Cerne, Lavras, v. 28, e-103056, 2022. DOI: 10.1590/01047760202228013056.
url http://repositorio.ufla.br/jspui/handle/1/55438
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras
publisher.none.fl_str_mv Universidade Federal de Lavras
dc.source.none.fl_str_mv Cerne
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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