Description of progeny trials in the different sites, numbers of individuals phenotyped and genotyped and phenotypic trait means (see text for traits' abbreviations).

a<p>Number of provenances (number of open-pollinated families) in the trial.</p>b<p>Number of provenances (number of open-pollinated families) sampled in the association population.</p>c<p>Ages at measurements of diameter at breast height and Pilodyn penetration and wood properties.</p>d<p>Number of trees measured for wood properties (WP) and genotyped for the association study.