Fig. 2From: Variation in leaf anatomy, vascular traits and nanomechanical cell-wall properties among European beech (Fagus sylvatica L.) provenancesProvenance means (+ standard deviations) of nanomechanical properties (adhesion; left, and deformation; right) in beech provenances. Differences between means denoted by the same letter are non-significant (pairwise Wilcoxon test)Back to article page