Abstract
This study evaluates the characteristics of superior clones of Eucalyptus pellitaandAcaciahybrid (Acacia mangium×A. auriculiformis) aged six years selected from abreeding program in Indonesia as materials for pulp and papermaking. Height, diameter, and wood densitydiffered significantly between species and among the clones, with respective mean values 21.6 m, 12.57 cm, and 657 kg.m-3for E. pellitaand 19.5 m, 24.83 cm, and 567kg.m-3for Acaciahybrid. Most fiber morphologies were significantly different between species. Cellulose and lignin differed significantly only among Acaciahybrid clones. Themean value of screened pulp yield Acaciahybrid (52.50%) was higher than that of E.pellita(50.31%). Kappa number and brightness were significantly different between species and amongE. pellitaclones. Some correlations of growth and wood properties showed a better relationship to pulp properties. Handsheet properties varied between species, and some clones showed an outstanding one.
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