Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam
- 176 Downloads
Variations in intrinsic wood properties [growth ring width (GRW), specific gravity (SG), fiber length (FL), and microfibril angle (MFA)] of 17–19-year-old Melia azedarach trees grown in two sites in northern Vietnam were investigated for effective utilization of the wood. Five discs were collected at 0.3-, 1.3-, 3.3-, 5.3-, and 7.3-m heights above the ground. The estimated mean GRW, SG, FL, and MFA were 7.44 mm, 0.548, 1.07 mm, and 14.65°, respectively. There were significant (P < 0.05) differences among trees and between sites in SG, FL, and MFA. Longitudinal position significantly (P < 0.05) influenced GRW and SG. Radial position was highly (P < 0.001) significant to all the wood properties and contributed the highest (GRW: 52.58%, SG: 58.49%, FL: 77.83%, and MFA: 26.20%) of the total variations. FL and SG increased from pith to bark, while GRW and MFA decreased from pith to bark. Fiber length increment (FLI) tends to stabilize between 7th and 10th rings. This should be taken into account when processing logs. The results of this study, therefore, provide a basis for determining management strategies appropriate to structural timber production of M. azedarach plantation trees in northern Vietnam.
KeywordsMelia azedarach Growth ring width Specific gravity Fiber length Microfibril angle
The first author was funded by Vietnam government for a Doctor course at Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan.
Compliance with ethical standards
Conflict of interest
The authors declare no conflict of interest.
- 1.EL-Juhany LI (2011) Evaluation of some wood quality measures of eight-year-old Melia azedarach trees. Turk J Agric For 35:165–171Google Scholar
- 4.Nghia NH (2007) Atlas of Vietnam’s forest tree species. Agric Publ House 1:242Google Scholar
- 6.Sharma CL, Sharma M, Jamir L (2014) Radial variation in wood properties of plantation grown Terminalia myriocarpa Heurck and Muell-Arg in Nagaland, India. Res J Recent Sci 3:9–14Google Scholar
- 11.Richter HG, Dallwitz MJ (2000) Commercial timbers: descriptions, illustrations, identification, and information retrieval. Version: 25th June 2009. http://delta-intkey.com. Accessed 24 Febr 2017
- 12.Trianoski R, Iwakiri S, Matos JLM (2011) Potential use of planted fast-growing species for production of particleboard. J Trop For Sci 23(3):311–317Google Scholar
- 13.Wiemann MC, Williamson GB (2002) Geographic variation in wood specific gravity: effects of latitude, temperature, and precipitation. Wood Fiber Sci 34(1):96–107Google Scholar
- 15.Lin CJ, Chung CH, Cho CL, Yang TH (2012) Tree ring characteristics of 30-year-old Swietenia macrophylla plantation trees. Wood Fiber Sci 44(2):202–213Google Scholar
- 16.Wahyudi I, Ishiguri F, Makino K, Aiso H, Takashima Y, Ohshima J, Iizuka K, Yokota S (2016) Evaluation of xylem maturation and the effects of radial growth rate on anatomical characteristics and wood properties of Azadirachta excelsa planted in Indonesia. J Indian Acad Wood Sci 13(2):138–144CrossRefGoogle Scholar
- 17.Ofori J, Brentuo B (2005) Green moisture content, basic density, shrinkage and drying characteristics of the wood of Cedrela odorata grown in Ghana. J Trop For Sci 17(2):211–223Google Scholar
- 21.Abdul WM (2007) Physical and mechanical properties of noncommercial timbers of NWFP. In: A project titled “Strengthening the forest products research at PFI, Peshawar”. Pakistan Forest Institute (SFPR), Peshawar, PakistanGoogle Scholar
- 23.Gartner BL, Lei H, Milota MR (1997) Variation in the anatomy and specific gravity of wood within and between trees of red alder (Alnus rubra Bong.). Wood Fiber Sci 29(1):10–20Google Scholar
- 25.Uetimane JRE, Ali AC (2011) Relationship between mechanical properties and selected anatomical features of ntholo (Pseudolachnostylis maprounaefolia). J Trop For Sci 23(2):166–176Google Scholar
- 26.Hein PRG, Lima JT (2012) Relationships between microfibril angle, modulus of elasticity and compressive strength in Eucalyptus wood. Maderas. Ciencia y tecnologia 14(3):267–274Google Scholar