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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Longitudinal shrinkage variations within trees of sugi (Cryptomeria japonica) cultivars

Journal of Wood Science volume 55, pages 1–7 (2009)Cite this article

Abstract

The longitudinal shrinkage variations within trees and the relationship with density, microfibril angle, and modulus of elasticity were examined for five sugi cultivars selected for different within-tree distributions of density, microfibril angle, and modulus of elasticity. The cultivars showed significant differences in longitudinal shrinkage and in its within-tree distribution. The within-tree distributions were categorized into two types: (1) large values of longitudinal shrinkage near the pith that decreased with height and from pith to bark, (2) small values of longitudinal shrinkage near the pith that increased slightly from pith to bark. There were strong relationships between longitudinal shrinkage and microfibril angle, and modulus of elasticity, with large values of longitudinal shrinkage associated with large microfibril angle and low modulus of elasticity. Sugi exhibited large variation in longitudinal shrinkage within stem and among cultivars, with the variation strongly affected by microfibril angle.

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Authors and Affiliations

  1. Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, 305-8687, Japan

    Kana Yamashita & Yasuhiko Hirakawa

  2. Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, Forest Products Research Laboratory, Imizu, Toyama, 939-0311, Japan

    Hiroshi Nakatani

  3. Forestry Research and Instruction Station of Kumamoto Prefecture, Kumamoto, Kumamoto, 860-0862, Japan

    Motoyoshi Ikeda

Authors
  1. Kana Yamashita
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  2. Yasuhiko Hirakawa
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  3. Hiroshi Nakatani
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  4. Motoyoshi Ikeda
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Correspondence to Kana Yamashita.

Additional information

Part of this article was presented at the 56th Annual Meeting of the Japan Wood Research Society, Akita, Japan, August 2006

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Yamashita, K., Hirakawa, Y., Nakatani, H. et al. Longitudinal shrinkage variations within trees of sugi (Cryptomeria japonica) cultivars. J Wood Sci 55, 1–7 (2009). https://doi.org/10.1007/s10086-008-0987-z

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  • DOI: https://doi.org/10.1007/s10086-008-0987-z

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