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Title: Effects of release from suppression on wood functional characteristics in young Douglas-fir and western hemlock.
Author: Renninger, H.J.; Gartner, B.L.; Meinzer, F.C.;
Source: Canadian Journal of Forest Research. 36(8): 2038-2046
Publication Series: Miscellaneous Publication
Description: We assessed differences in growth-ring width, specific conductivity (Ks), tracheid dimensions, moisture content, and wood density in suppressed Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and western hemlock (Tsuga heterophylla (Raf.) Sarg.) trees and trees released from suppression. Growth-ring width was 370 percent higher for Douglas-fir and 300 percent higher for western hemlock trees released from suppression, and Ks was 182 percent higher for Douglas-fir and 42 percent higher for western hemlock trees released from suppression. Earlywood width was approximately four times greater. Tracheids were 25 percent wider and 11 percent longer in released Douglas-fir trees. Wood density decreased by 21 percent in Douglas-fir trees and by 11 percent in western hemlock trees released from suppression.
Keywords: Hydraulic conductivity, thinning, wood anatomy, wood density
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Renninger, H.J.; Gartner, B.L.; Meinzer, F.C. 2006. Effects of release from suppression on wood functional characteristics in young Douglas-fir and western hemlock. Canadian Journal of Forest Research. 36(8): 2038-2046
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