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dc.contributor.author
Winck, Rosa Angela
dc.contributor.author
Fassola, Hugo Enrique
dc.contributor.author
Tomazello, Mario Filho
dc.contributor.author
Area, Maria Cristina
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dc.date.available
2016-12-13T19:59:16Z
dc.date.issued
2013-05
dc.identifier.citation
Winck, Rosa Angela; Fassola, Hugo Enrique; Tomazello, Mario Filho; Area, Maria Cristina; Case study: Microfibril angle and its relationship with basic density in Pinus taeda L. wood from silvopastoral systems; ABTCP; O Papel; 74; 5; 5-2013; 55-61
dc.identifier.issn
0031-1057
dc.identifier.uri
http://hdl.handle.net/11336/9296
dc.description.abstract
The material resulting from fast-growing plantations is presumed to present a high percentage of juvenile wood, with high micro!bril angle (MFA) and low basic density (BD), which would negatively affect the technological properties of wood. The objective of this study was to measure the MFA using the technique of the orientation of bordered and cross-!eld pit apertures of the tracheids walls, determine BD and verify the correlation between the two variables. The used material was Pinus taeda 15 years old from a stand with silvopastoral management. The pit apertures of the earlywood tracheids showed to be more rounded and abundant compared to those of the latewood. The MFA decreased from 56.2 to 42.1 degrees, and wood density increased from 0.31 to 0.42 g/cm3 from the pith to the bark. The high values of MFA could be explained by the genetic material with low degree of breeding, and also by the wide spacing between trees - which favors the fast growth -, but could also be due to the employed methodology. The correlation between MFA and density in this study is moderate and negative (R= -0.59), indicating that density would not be a parameter suf!cient to infer about the structural quality of the wood.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
ABTCP
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Basic Density
dc.subject
Microfibril Angle
dc.subject
Pinus Taeda
dc.subject
Pits
dc.subject.classification
Papel y Madera
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Case study: Microfibril angle and its relationship with basic density in Pinus taeda L. wood from silvopastoral systems
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-18T15:10:30Z
dc.journal.volume
74
dc.journal.number
5
dc.journal.pagination
55-61
dc.journal.pais
Brasil
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dc.journal.ciudad
Sao Paulo
dc.description.fil
Fil: Winck, Rosa Angela. Instituto Nacional de Tecnología Agropecuaria; Argentina
dc.description.fil
Fil: Fassola, Hugo Enrique. Instituto Nacional de Tecnología Agropecuaria; Argentina
dc.description.fil
Fil: Tomazello, Mario Filho. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Area, Maria Cristina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
O Papel
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