Understanding corewood in some softwoods: A selective review on stiffness and acoustics

International Forestry Review

Volumn 1, Issue 4, 1999, Pages 251-259

  Walker, J C F ^a   Nakada, Ryogo ^a,b  

^a UNIVERSITY OF CANTERBURY   (New Zealand)

^b NATIONAL VETERINARY ASSAY LABORATORY   (Japan)

Author keywords

Corewood; Cryptomeria japonica; Log sorting; Pinus radiata; Tree breeding

Indexed keywords

CLONE; COREWOOD; WOOD;

ACOUSTICS; FOREST MANAGEMENT; STIFFNESS;

EID: 0033379277     PISSN: 14655489     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Review

References (28)

1. ADDIS TSEHAYE, BUCHANAN, A.H., MEDER, R., NEWMAN, R.H. and WALKER, J.C.F. 1998 Microfibril angle: determining wood stiffness in radiata pine. In: BUTTERFIELD, B.G. (ed.) Microfibril angle in wood. University of Canterbury, Christchurch, pp. 323-336.
2. ADDIS TSEHAYE, BUCHANAN, A.H. and WALKER, J.C.F. 1992 The strength of finger-jointed, boxed-pith timber of Pinus radiata. Journal of the Institute of Wood Science 12 (5): 285-289.
3. ADDIS TSEHAYE, BUCHANAN, A.H. and WALKER, J.C.F. 1995a Stiffness and tensile strength variation within and between radiata pine trees. Journal of the Institute of Wood Science 13 (5): 513-518.
4. ADDIS TSEHAYE, BUCHANAN, A.H. and WALKER, J.C.F. 1995b A comparison of density and stiffness for predicting wood quality. Or, density: the lazy man's guide to wood quality. Journal of the Institute of Wood Science 13 (6): 539-543.
5. ADDIS TSEHAYE, BUCHANAN, A.H. and WALKER, J.C.F. 1997 Log segregation into stiffness classes. In: RIDOUTT, B.G. (ed.) Managing variability in resource quality. FRI Bulletin No. 202. Forest Research Institute, Rotorua, pp. 7-10.
6. ANON. 1997 Sugi hinshu no zaisitsu tokusei no hyoka. Ringyo siken kenkyu hokokusho no 36, Heisei 5 and 6. [Evaluation of wood qualities of sugi cultivars. Report of Forestry Research # 36 for 1993-94]. Forestry Agency, Tokyo. 117 pp.
7. ARATAKE, S., ARIMA, T., SAKODA, T. and NAKAMURA, Y. 1992 Estimation of modulus of Rupture (MOR) and modulus of elasticity (MOE) of lumber using higher natural frequency of log in pile of logs. Mokuzai Gakkaishi 38 (11): 995-1001.
8. ARIMA, T. 1991 Kokusan zai tokuni sugi zai no riyo kaihatsu sisutemu tositeno toukyu kubun [Grading as a system for the development of Japanese wood utilisation, especially sugi wood]. In: OHKUMA, M. (ed.) Shindo ni yoru ryubokuzaisitsu no sokuteihou no kentou to ryuboku zaishitsu wo kijun to suru atarashii kanbatsu hou no kaihatsu [Trial for measuring wood properties of standing tree by vibrational method and development of new method for thinning according to the wood properties of standing tree]. Research report for Grant-in-aid for Scientific Research from Ministry of education, Science, Sports and Culture of Japan. Tokyo University, Tokyo, pp. 69-78.
9. BENDTSEN, B.A. and SENFT, J.F. 1986 Mechanical and anatomical properties in individual growth rings of plantation-grown eastern cottonwood and loblolly pine. Wood and Fiber Science 18 (1): 23-38.
10. BUNN, E.H. 1981 The nature of the resource. NZ Journal of Forestry 26 (2): 162-199.
11. CAVE, I.D. 1968 Anisotropic elasticity of the plant cell wall. Wood Sci. and Tech. 2 (4): 268-278.
12. COWN, D.J. 1992 Corewood (juvenile wood) in Pinus radiata -should we be concerned? NZ Journal of Forestry Science 22 (1): 87-95.
13. DYCK, W.J. and THOMSON, P. 1999 Carter Holt Harvey's Millennium Forestry. NZ Journal of Forestry 43 (4): 3-4.
14. FUJISAWA, Y., OHTA, S., NISHIMURA, K. and TAJIMA, M. 1992 Wood characteristics and genetic variations in sugi (Cryptomeria japonica). Clonal differences and correlations between location of dynamic moduli of elasticity and diameter growths in plus-tree clones. Mokuzai Gakkaishi 38 (7): 638-644.
15. FUJISAWA, Y., OHTA, S. and TAJIMA, M. 1993 Wood characteristics and genetic variations in sugi (Cryptomeria japonica). II. Variation in growth ring components among plus trees clones and test stands. Mokuzai Gakkaishi 39 (8): 875-882.
16. HARRIS, J.M. and COWN, D.J. 1991 Basic wood properties. In: KININMONTH, J.M. and WHITEHOUSE, L.J. (eds.) Properties and uses of New Zealand radiata pine. Ministry of Forestry, New Zealand, Chapter 6, pp. 1-28.
17. HAYGREEN, J.G. and BOWYER, J.L. 1982 Forest products and wood science: an introduction. Iowa State University Press, Ames, Iowa. 495 pp.
18. HIRAKAWA, Y. and FUJISAWA, Y. 1995 The relationships between microfibril angles of the S2 layer and latewood tracheid lengths in elite sugi tree (Cryptomeria japonica) clones. Mokuzai Gakkaishi 41 (2): 123-131.
19. JANE, F.W. 1956 The structure of wood. A. & C. Black, London. 427pp.
20. JOZSA, L.A. and MIDDLETON, G.R. 1994 A discussion of wood quality attributes and their practical implications. Forintek Canada Corp, Special Publ. No SP-34, Vancouver. 42p.
21. LOO, J.A., TAUER, C.G. and MCNEW, R.W. 1985 Genetic variation in the time of transition from juvenile to mature wood in loblolly pine (Pinus taeda L.). Silvae Genetica 34 (1): 14-19.
22. SENFT, J.F., BENDTSEN, A. and GALLIGAN, W.L. 1985 Weak wood: fast-grown trees make problem lumber. Journal of Forestry 83 (8): 477-484.
23. SHELBOURNE, C.J.A. 1997 Genetics of adding value to the end-products of radiata pine. In: BURDON, R.D. and MOORE, J.M. (eds.) Genetics of radiata pine. New Zealand Forest Research Institute Bulletin 203, pp. 129-141.
24. SOBUE, N. 1986 Measurement of Young's modulus by the transient longitudinal vibration of wooden beams using a Fast Fourier Transformation spectrum analyzer. Mokuzai Gakkaishi 32 (9): 744-747.
25. ZOBEL, B.J., WEBB, C. and HENSON, F. 1959 Core or juvenile wood of loblolly and slash pine trees. Tappi 42 (5): 345-356.
26. ZOBEL, B.J. 1975 Using the wood quality concept in the southern pines. South Pulp Paper Mfr. 38 (9): 14-16.
27. ZOBEL, B.J. and VAN BUIJTENEN, J.P. 1989 Wood variation: its causes and control. Springer-Verlag, Berlin. 363 pp.
28. ZOBEL, B.J. and JETT, J.B. 1995 Genetics of wood production. Springer-Verlag, Berlin. 337 pp.