The relationship between growth rate and wood properties has great importance in the management of forest plantation for wood and fiber production. Anatomical characteristics and wood density relationship in two different clones and planting densities as well as its variations from pith to bark were evaluated in this study. Eight trees of 9-year-old rubber tree (Hevea brasiliensis Muell. Arg.) plantation were taken as samples. Wood density of 0.65 and 0.54g.cm-3 were recorded in clone Ι, while clone ΙΙ and respective planting densities revealed density values of 0.60 and 0.5g.cm-3. Wood density and fiber features showed an increasing trend from pith to bark. Measuring vessel parameters also showed a direct relation with planting density. The properties of clone ΙΙ were found to be comparatively better than clone Ι with longer fiber length and higher wood density.
