Comparing of Anatomical and Morphological Properties of Trunk and Root of Heaven tree (Ailanthus Altissima)

We are attempted to study the anatomical properties of trunk and root wood of (Ailanthus altissima) belongs to (Simaroubaceae) family. Wood discs prepared from trunk and root sections. Then, using microtome, microscopic thin samples provided and after staining with estra-blue and saphranine, fixed on glass lams via Canada Balsam glue and carefully observed by microscope with polarized light and photos took through microscope equipped to Nikon camera and connected to computer. Then images of the samples described according to microscopic traits of broad-leaves provided by IAWA committee. Also, morphological samples prepared according to Franklin in order to determination of fiber length, cellular pit diameter and consequently biometric coefficients. Results showed that there were differences between trunk and root wood in terms of clarity of growth rings in trunk and non-clarity in some years in root, lower wood parenchyma width in root as well as lower frequency of parenchyma length compared to trunk which was reported in many species. According to results, except limited characteristics, there were no much difference between root and trunk wood. Among different characteristics are growth rings, vessels arrangement, single vessels, fiber type and width and length of parenchyma. Results of physical traits showed that Ailanthuswood is a light wood which had specific mass of 0.59.