Earticle

초록

영어

Zelkova serrata is an important hardwood species for the timber industry in Japan. Tree breeding programs for this species have mainly focused on growth characteristics such as stem diameter (D), tree height (TH), stem form, and branching. In order to fulfill timber industry needs, wood quality improvement should be included in the tree breeding program of this species. In the present study, growth characteristics, such as D and TH, and the stress- wave velocity (SWV), which is highly correlated with Young’s modulus of wood, were measured for 20-year-old Z. serrata from eight half-sib families planted in a progeny test site with three different initial spacings. Significant differences in all the measured characteristics were found among the eight half-sib families. The variance components of the half-sib families for D, TH, and SWV were 27.2%, 47.3%, and 33.5%, respectively. These results indicate that all the measured characteristics of this species could be improved by tree breeding programs. In addition, only low correlation coefficients were obtained between the growth characteristics and SWV, indicating that extensive selection on SWV in tree breeding programs may not always lead to a reduction in yield volume.

목차

Abstract
 Introduction
 Materials and Methods
 Results and Discussion
  Among family variation
  Variance components
  Relationships between growth characteristics and SWV
  Implications of breeding for wood quality
 Acknowledgements

키워드

저자

• Agung Prasetyo [ United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509 Japan ]
• Ryota Endo [ Chiba Prefectural Center Part of Forestry Office, Kimitsu, Chiba 299-1152, Japan ]
• Yuya Takashima [ Forest Tree Breeding Center, Forestry and Forest Products Research Insititute, Hitachi, Ibaraki 319-1301, Japan ]
• Haruna Aiso [ United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509 Japan ]
• Fanny Hidayati [ Faculty of Forestry, Gadjah Mada University, Yogyakarta 55281, Indonesia ]
• Jun Tanabe [ United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509 Japan ]
• Futoshi Ishiguri [ Faculty of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan ] Corresponding author
• Kazuya Iizuka [ Faculty of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan ]
• Shinso Yokota [ Faculty of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634