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Author (up) Clair, B.; Almeras, T.; Sugiyama, J.
Title Compression stress in opposite wood of angiosperms: observations in chestnut, mani and poplar Type Journal Article
Year 2006 Publication Annals of Forest Science Abbreviated Journal Ann. For. Sci.
Volume 63 Issue 5 Pages 507-510
Keywords reaction wood; compression wood; tension wood; opposite wood; plant biomechanics; growth stresses; microfibrils angle
Abstract In order to face environmental constraints, trees are able to re-orient their axes by controlling the stress level in the newly formed wood layers. Angiosperms and gymnosperms evolved into two distinct mechanisms: the former produce a wood with large tension pre-stress on the upper side of the tilted axis, while the latter produce a wood with large compression pre-stress on the lower side. In both cases, the difference between this stress level and that of the opposite side, in light tension, generates the bending of the axis. However, light values of compression were sometimes measured in the opposite side of angiosperms. By analysing old data on chestnut and mani and new data on poplar, this study shows that these values were not measurement artefacts. This reveals that generating light compression stress in opposite wood contributes to improve the performance of the re-orientation mechanism.
Address Kyoto Univ, Res Inst Sustainable Humanosphere, Lab Biomass Morphogenesis & Informat, Uji, Kyoto 6110011, Japan, Email: clair@lmgc.univ-montp2.fr
Corporate Author Thesis
Publisher EDP SCIENCES S A Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1286-4560 ISBN Medium
Area Expedition Conference
Notes ISI:000240514800008 Approved no
Call Number EcoFoG @ eric.marcon @ Serial 223
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