Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density
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 we...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad del Bío-Bío
2018-10-01
|
| Series: | Maderas: Ciencia y Tecnología |
| Subjects: | |
| Online Access: | https://revistas.ubiobio.cl/index.php/MCT/article/view/3204 |
| _version_ | 1827381295298117632 |
|---|---|
| author | Luiz Eduardo de Lima Melo Selma Lopes Goulart Bárbara Maria Ribeiro Guimarães Rosalvo Maciel Guimarães Neto Caroline Junqueira Sartori José Tarcísio Lima |
| author_facet | Luiz Eduardo de Lima Melo Selma Lopes Goulart Bárbara Maria Ribeiro Guimarães Rosalvo Maciel Guimarães Neto Caroline Junqueira Sartori José Tarcísio Lima |
| author_sort | Luiz Eduardo de Lima Melo |
| collection | DOAJ |
| description |
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 an microfibril angle predictor, accounting for 96% and 79% of its variation, respectively.
|
| first_indexed | 2024-03-08T13:53:09Z |
| format | Article |
| id | doaj.art-5780d1332432409f91cb58bedc6e2545 |
| institution | Directory Open Access Journal |
| issn | 0717-3644 0718-221X |
| language | English |
| last_indexed | 2024-03-08T13:53:09Z |
| publishDate | 2018-10-01 |
| publisher | Universidad del Bío-Bío |
| record_format | Article |
| series | Maderas: Ciencia y Tecnología |
| spelling | doaj.art-5780d1332432409f91cb58bedc6e25452024-01-15T18:34:15ZengUniversidad del Bío-BíoMaderas: Ciencia y Tecnología0717-36440718-221X2018-10-012043204Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic densityLuiz Eduardo de Lima MeloSelma Lopes GoulartBárbara Maria Ribeiro GuimarãesRosalvo Maciel Guimarães NetoCaroline Junqueira SartoriJosé Tarcísio Lima 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 an microfibril angle predictor, accounting for 96% and 79% of its variation, respectively. https://revistas.ubiobio.cl/index.php/MCT/article/view/3204Eucalyptfiber morphologymicrofibril slopespecific gravitywood variation |
| spellingShingle | Luiz Eduardo de Lima Melo Selma Lopes Goulart Bárbara Maria Ribeiro Guimarães Rosalvo Maciel Guimarães Neto Caroline Junqueira Sartori José Tarcísio Lima Prediction of microfibril angle for Eucalyptus microcorys wood by fiber length and basic density Maderas: Ciencia y Tecnología Eucalypt fiber morphology microfibril slope specific gravity wood variation |
| title | 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_short | 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 |
| topic | Eucalypt fiber morphology microfibril slope specific gravity wood variation |
| url | https://revistas.ubiobio.cl/index.php/MCT/article/view/3204 |
| work_keys_str_mv | AT luizeduardodelimamelo predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT selmalopesgoulart predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT barbaramariaribeiroguimaraes predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT rosalvomacielguimaraesneto predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT carolinejunqueirasartori predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity AT josetarcisiolima predictionofmicrofibrilangleforeucalyptusmicrocoryswoodbyfiberlengthandbasicdensity |