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

aNumber of provenances (number of open-pollinated families) in the trial.
bNumber of provenances (number of open-pollinated families) sampled in the association population.
cAges at measurements of diameter at breast height and Pilodyn penetration and wood properties.
dNumber of trees measured for wood properties (WP) and genotyped for the association study.