ANATOMICAL RADIAL VARIATION AND DENSITY IN WOOD OF RUBBER TREE [Hevea brasiliensis (Willd. ex A. Juss.) Muell. Arg.] CLONES

The anatomical structure and physical properties of wood change signifcantly among trees the same species even different parts tree. However, studies that characterize radial variation characteristics density clones are scarce, specifcally for rubber tree [Hevea brasiliensis (Will. ex Adr. De Juss.) Muell]. Thus, objective research was evaluating in Hevea clones. For this study, 30 trees, three each progeny from 10 were used. most clones, we noticed an increase fber length vessel diameter towards bark. frequency, ray height, width observed a decrease Fiber wall thickness distinctive characteristic, compared to others, presenting trend thicker walls middle position, consequently infuencing basic