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Radial variation of density and anatomical features of Eucalyptus Nitens trees
Wood Drying Research Group, Department of Wood Engineering, Universidad del Bío Bío, Chile.
Forest Products Consultant, San José, Costa Rica.
Department of Wood Engineering, Universidad del Bío Bío, Chile.
Université Laval, Canadá.
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2017 (English)In: Wood and Fiber Science, ISSN 0735-6161, Vol. 49, no 3, 1-11 p.Article in journal (Refereed) Epub ahead of print
Abstract [en]

This paper studies the relationship between apparent density and some anatomical propertiesof Eucalyptus nitens such as vessel frequency, vessel area, ring width, fiber cell wall thicknesses, andfiber length. The study involved 29 trees from 10 families of Eucalyptus nitens cut from a 17-yr-oldplantation in Southern Chile. The properties were determined along the radial direction of the trees byusing X-ray equipment and at selected positions through microscope and fiber quality analyzer equipment.The results showed that the anatomical properties of E. nitens did not change gradually from pith tobark, but they were better described by dividing the tree radius into three different wood-zones referred as inner-, middle-, and outer-wood. The apparent density of E. nitens was dependent of the vessel area,cell wall area, ring width, and latewood width. The correlation coefficient between apparent density andvessels area was negative and the correlation coefficient between apparent density and cell wall area,latewood ring width, and total ring width were positive. These means that E. nitens wood with lowerdensity tended to have higher vessel area, and lower fiber cell wall area, ring width, and latewood width.

Place, publisher, year, edition, pages
Monona, WI: Society of Wood Science and Technology , 2017. Vol. 49, no 3, 1-11 p.
Keyword [en]
Earlywood, fiber, latewood, apparent density, ring width, solid lumber, vessel, X-ray densitometry
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-64887OAI: oai:DiVA.org:ltu-64887DiVA: diva2:1127553
Available from: 2017-07-17 Created: 2017-07-17 Last updated: 2017-07-17

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