Fig. 3From: Patterns of within-stem variations in wood specific gravity and water content for five temperate tree speciesRadial variations of basic specific gravity (BSG) and relative water content of lumens (R W C L ) for Fagus sylvatica, Acer pseudoplatanus, Abies alba and Pseudotsuga menziesii for three classes of diameter at breast height (small, medium, large). The inside area includes the two innermost 1-cm-thick bands, the outside area includes the two outermost centimetres, and the middle area includes the remaining part. The letters above the boxplots identify the statistically significant different groups according to pairwise t testsBack to article page