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ARPN Journal of Science and Technology >> Volume 7, Issue 1, January 2017

ARPN Journal of Science and Technology

Assessment of Some Physical Properties of Pinus Caribeae (Morlet) in a Four Different Age Plantation in Oluwa Forest Reserve, Nigeria

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Author Udoakpan U.I.
ISSN 2225-7217
On Pages 662-668
Volume No. 3
Issue No. 6
Issue Date July 01, 2013
Publishing Date July 01, 2013
Keywords Physical properties, Pinus caribeaa (Morlet), Oluwa Forest Reserve, Nigeria


This study assessed of the effects of within tree variation on wood density, ring width and volumetric shrinkage of Pinus caribeae (Morlet) among four different plantation ages in Oluwa forest reserve. Five Pinus caribaea (Morlet) in three partitions were randomly selected from each of the four different ages (15, 16, 17 and 18) of the plantation and felled for the study. Wood samples were prepared from five height levels, 10%, 30%, 50%, 70% and 90% and also among the wood type; inner wood, middle wood and outer wood positions of the stem according to standard procedures. The result showed that the wood density ranged between 0.33g/cm3 and 0.56g/cm3. Among the plantation ages, a strong positive correlation was established between density, ring width and shrinkage properties including the relationship between ring width and volumetric shrinkage being positive. Thus, it may be possible to use density and grain orientation biometry to predict anisotropic shrinkage of the wood and its dimensional stability.

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