Document Type : Research Paper

Authors

1 Assistant Professor, Faculty of Paper and wood Sciences Technology, Department of Natural Resources, University of Zabol, Iran

2 M.Sc., Composite Products Engineering, University of Zabol, Iran

Abstract

Cordia (Sepestan in Persian) species (Cordia myxa L.) is in the borage family (Boraginaceae) and it is growing with geographical distribution in the moderate and tropical regions of Iran such as near the Persian Gulf, especiallyin Bandar Abbas and some places in Kerman and Sistan and Baluchestan region but its anatomical characteristics have not been studied yet. In this study, some of the anatomical, chemical and physical properties of Sepestan wood in Iranshahr region in Sistan and Baluchestan Province were measured. Anatomical studies showed that this species has average diameter vessels, simple vascular perforation plate and intervessel pits alternate. Its ray xylems type is heterogeneous and contains abundant crystals. The wood tissue is parenchyma with abundant prismatic crystals and in the cross-section parenchyma was observed in gregarious and continuous formation. Average length, overall diameter, lumen diameter and wall thickness of the fibers were measured 1329, 33.5, 21.7 and 5.9 microns respectively. Also investigation of chemical characteristics showed that Sepestan wood has average cellulose 34.75, lignin 20.6, extractives soluble in acetone 7.88 and also 8.9 percent ash. The results also showed that the specific gravity of the wood is 0.4 and maximum volumetric swelling and shrinkage were 10.98 and 12.34 percent respectively.

Keywords

Main Subjects

-Aberoumand, A., 2011. Preliminary Evaluation of Some Phytochemical and Nutrients Constituents of Iranian Cordia myxa Fruits. International Journal of Agricultural and Food Science, 1(2): 30–33.
-Barajas-Morales, J., 1985. Wood structural differences between trees of two tropical forests in Mexico. IAWA Bulletin, 6(4): 355–364.
-Borhidi, A.E., Gondáry, Zs., and Orosz, K., 1988. The reconsideration of the genus Cordia L. Acta Botanica Hungarica, 34: 375–423.
-Canny, M.J., 1997. Tyloses and the maintenance of transpiration. Annals of Botany, 80: 565–570.
-Carlquist, S., 2001. Comparative Wood Anatomy. Systematic, Ecological, and Evolutionary Aspects of Dicotyledon Wood, 2nd Ed., Springer-Verlag, Berlin, Germany, 448 pp.
-Franklin, G.L., 1954. A rapid method for softening wood for microtome sectioning. Tropical woods, 88: 35-36.
-Gholizadeh Sarcheshmeh, T., Farajpour Roudsari, A., and Tabei, A., 2013. Comparative study of chemical components and morphological features of trunk and cone fibers from loblolly pine grown in Gilan province. Iranian Journal of Wood and Paper Science Research, 28 (3): 545–560. (In Persian).
-Gorgij, R., Tarmian, A., Nasiriani, S., and Oladi, R., 2014. Some anatomical, physical and chemical properties of toothbrush wood (Salvadora persica L.) grown in Zabol region. Iranian Journal of Wood and Paper Science Research, 29 (1): 132–141. (In Persian).
-Gottwald, H., 1982. First Description of the Wood Anatomy of Antrophora, Lepidocordia and Pteleocarpa (Boraginaceae). IAWA Bulletin new series, 3(3–4): 161–165.
Gottwald, H., 1983. Wood anatomical studies of Boraginaceae (sl): 1. Cordioideae. IAWA Bulletin new series, 4(2-3), 161-178.
-IAWA Committee, 1989. IAWA list of microscopic features for hardwood identification by an IAWA Committee. E. A. Wheeler, P. Baas & P. E. Gasson (eds.) IAWA Bull. n.s.10(3): 219-332.
-Johansen, D.A., 1940. Plant microtechnique. McGraw- Hill Book Co, New York, 194 pp.
-McElrone, A.J., Grant, J.A., and Kluepfel, D.A., 2010. The role of tyloses in crown hydraulic failure of mature walnut trees afflicted by apoplexy disorder. Tree Physiology, 30(6): 761–-772.
-Pearson, R.S., and Brown, H.P., 1932. Commercial timbers of India: their distribution, supplies, anatomical structure, physical and mechanical properties and uses. Volumes I & II, Central Publication Branch, Government of India, 1150 pp.
-Polhill, R.M., 1991. Flora of Tropical East Africa. Taylor & Francis, 474 pp.
-Schmelzer, GH., Gurib-Fakim, A., Arroo, R., Bosch, CH., De-Ruijter, A. and Simmonds, M.S.J., 2008. Plant Resources of Tropical Africa 11(1) – Medicinal Plants 1. Backhuys Publishers, Wageningen, Netherlands, 790 pp.
-Schweingruber, F.H., Borner, A., and Schulze, E.D., 2006. Atlas of woody plant stems: Evolution, Structure, and Environmental Modifications, . New York, NY, USA: Springer.
-Toghraei, N., Azizi Heris, E., and Parsapajouh, D., 1993. Anatomical characteristics of saxaul wood (Haloxylon) in Iran (Sistan-Baluchestan Province). Pajouhesh & Sazandegi, 81: 2-12. (In Persian).
-Zargari, A., 1989. Herbal plants. Third volume, Tehran university pub, 894 pp. (In Persian).