Caracterização anatômica de clones comerciais de Eucalyptus para a produção de papel

Abstract

Wood is a renewable natural resource that has advantages when compared to other materials used by industry, knowledge of the anatomical properties of the genus Eucalyptus, such as vessel and fiber dimensions, play a fundamental role in physiological and sustentation processes, and guarantee the better use of the species. The objective of the study was to characterize the wood of six commercial clones of Eucalyptus spp. From the point of view of fiber anatomy and basic density, considering their use in the pulp industry. The materials of six clones came from commercial plantations with spacing of 2 x 3 meters, with 7 years of age. In order to do so, six specimens of each clone were prepared to verify the specific mass and anatomy of the fibers from discs taken at chest height (DAP), which were transformed into specimens for qualitative anatomical studies and quantitative. The preparation of macerated slides followed the method Nitric-Acetic Acid. For the anatomical study of the fibers, it was observed values of the Runkel index less than 1, these are indicated for paper production and considered very good and good, however, for a safe recommendation for this purpose, it is important to perform a chemical analysis.