Selected Physical Properties and Microscopic Description of <i>Ziziphus mauritiana </i>Lam. Wood in Sudano-Sahelian Region of Nigeria


  • Josiah Thomas Bitrus Riki Department of Forestry and Wildlife Management, Faculty of Agriculture and Life Sciences, Federal of Wukari, Wukari. Taraba
  • Olufemi Ashimiyu Sotannde
  • Abiodun Oluwafemi Oluwadare



Physical, Anisotropic Shrinkage, Microscopy


Background and Objective:

Wood is a hard, fibrous tissue found in many trees. It has been used for hundreds of thousands of years for fuel, construction and industrial raw materials.  Ziziphus mauritiana is a tropical fruit tree species, belonging to the family Rhamnaceae, the specie is abundant in Sudano-sahelion region of Nigeria and it has been reported to have several medicinal uses from the leaves, stem and  roots,  but  technical  information on the  use  of the wood for construction purposes is limited. Therefore, determinations of selected physical and microscopic description of the wood of Z. mauritiana as a potential wood material for timber were investigated.


Materials and Methods: Three matured trees of Z. mauritiana were felled from a research plantation of the Department of Forestry and Wildlife within the University of Maiduguri, in the North-eastern part of Nigeria and cross-cut into billets at the base, middle and top of the stems with estimated age of 7, 6 and 6 years old accordingly from the three sampled trees. Discs were obtained from each billet for determination of Physical properties (Bark, Bast, Sapwood, heartwood and pith proportion, Moisture content (MC), Density and some microscopic description (fibre and parenchyma cells) were all determined.


Results: The average wood density of the sampled trees stood at 0.55±0.01g/cm3 and decreased from base to top. Similarly, moisture content decreased from 75.66±3.83% at the base to 54.08±1.19% at the top of the sampling height. The volumetric shrinkage is the total shrinkage in wood volume and it amounted to 10.11±3.17%. Averagely, bast accounted for 3.56±0.70%, 6.50±0.89%, 69.38±0.50 %, 16.00±3.23% and 10.38±1.96 % for bark, sapwood, heartwood and pith proportions respectively across the stem.



Conclusion: The wood of Z. mauritiana is heavy. Within tree, wood density decreased from the base to the top. The range of values obtained in this study fall within the range of 450-750 kg/m-3 for species suitable for furniture, sheeting and lining, parquet, veneer wood for peeling and slicing with large vessel size and parenchyma cells. The range of values of volumetric shrinkage along the height and radial position shows that the wood is dimensionally stable. This was evident in the low tangential–radial shrinkage ratios recorded. Thus, indicating a low risk of deformation in wood during seasoning.



Winandy, J.E. 1994. Effects of long-term elevated temperature on CCA-treated Southern Pine lumber. Forest Products Journal. 44(6): 49–55.

Jamala, G.Y., Olubunmi, S.O., Mada, D.A. and Abraham, P. 2013. Physical and Mechanical Properties of Selected Wood Species in Tropical Rainforest Ecosystem, Ondo State, Nigeria.IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS) e-ISSN: 2319- 2380, p-ISSN: 2319-2372. Volume 5, Issue 3 (Sep. - Oct. 2013), PP 29-3.

Philips, E. W. J. 1941. The inclination of the fibrils in the cell wall and its relation to the compression strength of timber. Empire Forestry J. 20, 74-78.

az4. Palejkar, C. J., Palejkar, J. H., Patel, A. J. and Patel, M. A. 2012. A Plant Review on Ziziphus Mauritiana. International Journal of Universal Pharmacy and Life Sciences 2(2) 2249- 6793.

Sotannde, O. A. and Riki, J. T. B. (2019). Wood Quality Studies Of Some Wood Species In Sudano-Sahelian Environment Of Borno State, Nigeria. Journal of Research in Forestry, Wildlife & Environment Vol. 11(3) 8-19pp.

American Society for Testing and Materials (ASTM) 1984. Standard Method for Preparation of Extractive –free Wood.

Sotannde, O. A., Oluyege, A. O., Adeogun, P. F. and Maina, S. B. 2010. Variation in Wood Density, Grain Orientation and Anisotropic Shrinkage of Plantation Grown Azadirachta Indica. Journal of Applied Sciences Research, 6(11): 1855-1861.

Eckelman, C. A. 2014. The Shrinking and Swelling of Wood and Its Effect on Furniture Purdue University • Department of Forestry &Natural Resources • 1159 Forestry Bldg. • West Lafayette, IN 479071.

Quilho, T., J. Gominho and H. Pereira, 2004. Anatomical characterisation and variability of the thistle Cynara cardunculus in view of pulping potential. IAWA J., 25: 217-230.

Oluwadare, A. O. and Egbewole, Z. T. 2008. Wood quality studies in plantation-grown Sterculia (Sterculia setigera Del.) in the Guinea savanna, Nigeria. Research Journal of Forestry 2 (1): 22-23.

Sotannde A. O, Anguruwa, G. T. and Ishaya, D. 2015. Wood Quality Study of 9-Year Old Plantation Grown Khaya senegalensis in Sudano-Sahelian Environment of Borno State Nigeria. Journal of Forestry Research and Management. Vol. 12, 95-112.

Wiedenhoeft, A.C. and Miller, R.B. 2005. USDA, Forest Service, Forest Products Laboratory, Madison, WI. Pp 12.

Hoadley, R. B. 2000. Understanding Wood: A Craftsman’s Guide to Wood Technology.

Taylor, A. M and Cooper, P. A. 2002. The effect of pre harvesting girding on selected properties of red maple and eastern larch wood fiber sci. 34(2): 212-220.

Reyes, G., Brown, S., Chapman, J. and Lugo, A. E. (1992) Wood Densities of Tropical Tree Species. General Technical Report SO-88. USDA Forest Service, Southern Forest Experiment Station, New Orleans.

Maiti, R., Rodriguez, H.G. and Kumari, A. (2016). Wood Density of Ten Native Trees and Shrubs and Its Possible Relation with a Few Wood Chemical Compositions. American Journal of Plant Sciences, 7, 1192-1197.

Evan, P. D. 1991. The strength properties of clear wood materials forum 15; 231-244.

Barker, D. A., Philips, O. L., Laurance, W. F., Pitman, N. C. A., Almeida, S., Arroyo, L. and Difiore, A. 2009. Do species traits determined patterns of wood production in Amazonian forests? Biogeosciences 6: 297-307.

Ogunsanwo, O. Y. 2000. Effects of pulp blending and beating on selected strength properties of Pine- Gmelina hand sheets in Nigeria. Journal of Tropical Forest Resources Vol. 16 (58 – 65).

Akpan, M. 1999. Dimensional changes of wood in service; potential of Eribroma oblanga for interior decoration. Journal of technology and development, 7: 6-11.

Oyagade, A. O. and Fasulu, S. A. 2005. Physical and Mechanical Properties of Trilepisium madagascariense and Funtumia elasticawood. Journal of Tropical Forest Science 17(2): 258 264.

Josue, J. 2004. Some wood properties of Xylia xylocarpa planted in Sabah. Sepilok Bulletin 1: 1-15.

Skadson, E. N. (2007). Basic Wood Anatomy and behaviour.




How to Cite

Riki, J. T. B., Sotannde, O. A., & Oluwadare, A. O. (2019). Selected Physical Properties and Microscopic Description of <i>Ziziphus mauritiana </i>Lam. Wood in Sudano-Sahelian Region of Nigeria. Asian Journal of Applied Sciences, 7(6).