Physical, Chemical and Biometrical Properties of Stem and Branch Wood of Persian Oak (Quercus brantii Lindl.)

In this study, physical, chemical and biometrical properties of stem and branch wood of
Persian oak (Quercus brantii Lindl.) were studied in central Zagros forests. Persian oak from Fagacea family is the most important tree wood species in the central Zagros forest. In order to determine its physical, chemical and biometrical properties, 3 normal trees from Lordegan forest stands in Charmahal va Backtiari province were selected and cut. The biometrical characteristics including fiber length, fiber diameter, lumen and cell wall thickness were investigated. Physical properties including dry and basic density as well as volumetric shrinkage and swelling were measured. In addition, chemical compositions e.g. cellulose, lignin and ash content were determined. The results showed that dry and basic density as well as volumetric shrinkage and swelling of stem wood was higher than those of branch wood. There was statistical significant different at 5 percent level between fiber length, fiber diameter, lumen and cell wall in stem and branch wood. It is indicated the content of cellulose, lignin and ash in stem- and branch were 45,15, 24,12, 3,34 41, 25,12, 28,68 and 2,58 %respectively.