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Article Dans Une Revue Journal of the Indian Academy of Wood Science Année : 2015

Growth stresses in old beech poles after thinning: distribution and relation with wood anatomy

Résumé

In the present study, we investigated the reaction of small diameter but old beech poles to canopy opening with particular interest in occurrence of growth stresses which allows the tree to maintain or correct its spatial position. We studied the relationships between growth stresses and (i) thinning treatment and (ii) anatomical structure. Forty-two beech poles were used for the study, half of which were thinned in 2007. We measured the growth stresses indicators (GSI) at eight positions around the trunk periphery and wood anatomical characteristics including proportion of G-fibers and vessel characteristics. Surprisingly, thinning treatment did not affect the average growth stress level and intensity of reaction in old beech poles. This rather unexpected result may be related to the high age of these trees and/or the high reaction wood occurrence prior to thinning resulting from the growth in suppressed condition. Considering the relationship between the proportions of G-fiber and the level of growth stresses, a significant positive correlation was found in agreement with previous studies on other species. Further, a negative correlation was found between vessel surface area and GSI level. Vessel frequency was also decreasing with the increasing GSI level and proportion of G-fibers
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Dates et versions

hal-01269222 , version 1 (05-02-2016)

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Citra Yanto Ciki Purba, Estelle Noyer, Julien Ruelle, Jana Dlouha, Lina Karlinasari, et al.. Growth stresses in old beech poles after thinning: distribution and relation with wood anatomy. Journal of the Indian Academy of Wood Science, 2015, 12 (1), pp.37-43. ⟨10.1007/s13196-015-0142-6⟩. ⟨hal-01269222⟩
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