Technical Note: Shrinkage Properties of Partially Cad-Deficient Loblolly Pine Lumber


  • Teofisto C. Saralde
  • Perry N. Peralta
  • Ilona Peszlen
  • Balazs Horvath


Partially cinnamyl alcohol dehydrogenase-deficient and wild-type loblolly pine (Pinus taeda) were studied for shrinkage properties. The study established no significant difference between these two genotypes. Results also showed that shrinkage of juvenile wood is significantly different from the corresponding shrinkage of mature wood only in the radial direction. Tangential shrinkage difference between juvenile and mature wood was significant when the uncorrected values were used but not when the true shrinkage values were used, thus highlighting the need to account for the effect of growth ring curvature on tangential shrinkage measurement of small-diameter trees.


Forest Products Laboratory (1999) Wood handbook - Wood as an engineering material. General Technical Report FPL-GTR-113. USDA For Serv Forest Products Laboratory, Madison, WI. 463 pp.nKelsey KE, Kingston RST (1953) An investigation of standard methods for determining the shrinkage of wood. J Forest Prod Res Soc 3(11):49-53.nSaralde TC Jr, Peralta PN, Peszlen I, Kasal B (2008) Mechanical properties of lumber from partially CAD-deficient loblolly pine (Pinus taeda). Wood Fiber Sci 40(4):657-662.n






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