Spatial variation of eucalyptus fibres considering the structure of annual growth rings
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
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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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 |
_version_ |
1815439269289787392 |