Browsing Tree-Ring Bulletin, Vol. 56 (2000) by Authors
Twisted Increment Cores: Getting it StraightYoung, P. J.; Cleaveland, M. K.; School of Forestry, Wildlife and Fisheries, Louisiana State University, Baton Rouge, Louisiana; Tree-Ring Laboratory, Department of Geosciences, University of Arkansas, Fayetteville, Arkansas (Tree-Ring Society, 2000)Increment cores that dry with a spiral twist are a problem in any study where a clear view of transverse wood anatomy is required. This problem may become acute when working with wood that is partially decomposed. After soaking cores in a urea solution, we can remove spiral twists by applying steam to the cores and gently twisting cores until they straighten. Treatment does not result in a serious distortion of ring widths.