Compositional analysis. Composition of control, tension wood-induced, 2,6-dichlorobenzonitrile (DCB)-treated, and tension wood-induced, DCB-treated trees in the 26-day treatment group (n = 6). Debarked control trees and isolated tension and opposite wood are also included for comparison in the 43-day treatment group (n = 3). (A) Glucan content expressed as the percentage of dry matter (% DM). (B) Total lignin content expressed as % DM. Error bars = 1 standard error of the mean. Results of Tukey's Honestly Significant Difference (HSD) post hoc test (α = 0.05) are represented by a, b, c, d, e and f.