**5. Conclusion**

The five elite *Eucalyptus* clones at 4 years generally presented wood quality for pulping or paper end-use with adequate values for most fiber ratios and average basic density. Good technological performance was obtained with respect to pulp yield. In contrast, genotypes presented a high required alkali charge to obtain a kappa number ±18.0 as a disadvantage. Overall, clone E (*E. grandis* x *E. urophylla*) stands out among the analyzed genotypes in terms of combined characteristics. Clone D (*E. grandis* x *E. urophylla* x *E. tereticornis*) presented inferior fiber quality as a consequence of thicker cell wall associated to thinner fibers. Conversely, clone B (*E. pellita* x *E. grandis*), which has the lowest wood density associated to wider lumen and fibers, displayed relatively lower pulping performance.

The prior selection of *Eucalyptus* genotypes with drought tolerance and high productivity traits, associated to the significant variations found among them in this present work for important parameters associated with wood properties and pulpability, represents the basis for an efficient evaluation based on pulp potential in aiming to select genotypes for commercial plantations. Future studies to explore other important quality traits must be performed.
