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- Title
Inheritance of static bending properties and classification of load-deflection curves in Cryptomeria japonica.
- Authors
Takahashi, Yusuke; Ishiguri, Futoshi; Aiso, Haruna; Takashima, Yuya; Hiraoka, Yuichiro; Iki, Taiichi; Ohshima, Jyunichi; Iizuka, Kazuya; Yokota, Shinso
- Abstract
To clarify inheritance of static bending properties in relation to elastic and plastic regions, air-dry density, microfibril angle of the S2 layer in latewood tracheid (MFA), and static bending properties (modulus of elasticity [MOE], modulus of rupture [MOR] and bending work) were examined for juvenile wood of 18 full-sib families in 20-year-old Cryptomeria japonica. Heritability of all traits ranged from 0.12 (bending work) to 0.51 (air-dry density). Based on the results from principal component analysis (PCA) and cluster analysis, the families were classified into four groups with different types of load-deflection curves, suggesting that both elastic properties and deflection in plastic region differed among families. Furthermore, families included in a group were produced from specific parents, suggesting that deflection in plastic region as well as elastic property is inheritable. It can be concluded that mating parents may affect elasticity and plasticity of offspring.
- Subjects
CRYPTOMERIA japonica; ELASTICITY; FLEXURAL strength; PRINCIPAL components analysis; MODULUS of elasticity; ELASTIC modulus
- Publication
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 2021, Vol 75, Issue 2, p105
- ISSN
0018-3830
- Publication type
Article
- DOI
10.1515/hf-2019-0316