A Note on The Effect of Alcohol-Benzene Extractives on Juvenile Wood Specific Gravity in Red Pine

Authors

  • Chen Hui Lee

Keywords:

Red pine, statistical precision, sample size, specific gravity, extractives

Abstract

A 24-millimeter-thick disk specimen was sampled from each of the three 10-year-old trees representing each of the 40 wind-pollinated red pine (Pinus resinosa Ait.) families. A 12- x 12- x 12-mm cube was cut from the bark side along the east cardinal direction. Smith's maximum moisture content method was used to determine unextracted and extracted specific gravities. Overall mean specific gravity for unextracted and extracted wood specimens was 0.351 and 0.309, a difference of 0.042 being statistically significant at the 1% level. The correlation between unextracted and extracted specific gravities was also statistically significant (r2 = 0.444) at the 1% level. The larger experimental error variance was associated with the presence of alcohol-benzene extractives in the wood, and the need of a larger sample size to obtain the identical degrees of precision was suggested when working with unextracted wood specimens.

References

Agar, A., et al. 1983. Genetic gains from red pine seedling seed orchard. Proc. 28th Northeast Forest Tree Improve. Conf. Univ. New Hampshire, Durham, NH. Pp. 175-194.nFowler, D. P., and D. T. Lester. 1970. Genetics of red pine. USDA Forest Service Res. Paper WO-8, 13 pp.nGoggans, J. F. 1961. The interplay of environment and heredity as factors controlling wood properties in conifers with special emphasis on their effects on specific gravity. North Carolina Sta. Univ. School of For. Tech. Rep. No. 11. 56 pp.nGoggans, J. F. 1962. The correlation, variation and inheritance of wood properties in loblolly pine. North Carolina Sta. Univ. School of For. Tech. Rep. No. 14. 155 pp.nLai, Y. Z., et al. 1980. Wood and bark specific gravity determination as affected by water-soluble extractives loss. Wood Sci. 13(1):47-49.nLee, C. H. 1974. Geographic variation of growth and wood properties in eastern white pine. Proc. 21st Northeast For. Tree Improve. Conf. Pp. 36-41.nLee, C. H. 1976. Geographic variation of growth and wood properties in Japanese larch. Proc. 12th Lake States For. Tree Improve. Conf. Pp. 35-46.nLee, C. H. 1979. Absence of growth-wood property correlation in 27 black pine seed sources. Wood Fiber 11(1):22-28.nLee, C. H. and H. E. Wahlgren. 1979. Specific gravity sampling with minimal tree damage—A study of red pine. Wood Sci. 11(4):241-245.nLee, C. H. and J. T. Quirk. 1983. Precision of measuring anatomical characteristics in jack pine. Wood Fiber Sci. 15(1):74-80.nPosey, C. E., and D. W. Robinson. 1969. Extractives of shortleaf pine: An analysis of contributing factors and relationship. Tappi 52(1): 110-115.nSmith, D. M. 1954. Maximum moisture content method for determining specific gravity of small wood samples. USDA Forest Service Forest Prod. Lab. Rep. No. 2014. 8 pp.nTaras, M. A., and J. R. Saucier. 1967. Influence of extractives on specific gravity of southern pine. For. Prod. J. 17(9):97-99.nTaylor, F. W. 1974. Effect of extraction on the volume determination and specific gravity of solid wood blocks. Wood Sci. 6(4):396-404.nThor, E. 1965. Variation in some wood properties of eastern white pine. Forest Sci. 11(4):451-455.nZobel, B. J. 1961. Inheritance of wood properties in conifers. Silvae Genet. 10:65-70. Frankfurt a.M., Germany.n

Downloads

Published

2007-06-28

Issue

Number 3 / July 1986

Section

Research Contributions

License

The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:

1. All proprietary rights other than copyright, such as patent rights.

2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.

3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.