The genetic control of microfibril angle (MFA) and the genetic correlations of MFA with other wood and growth traits are poorly documented for Eucalyptus. The objective of this work was to determine the heritability of MFA, wood density ( ) and stiffness (E), and growth traits from clonal and progeny tests of Eucalyptus in Brazil and Republic of Congo. Resonance, X-ray diffraction and NIR spectroscopy were combined to evaluate the wood traits. The heritability estimates were moderate to high for MFA,, E, Klason lignin and growth traits according to the spatial position within the tree and the...