Fig. 2From: Transcriptomic and metabolomic analyses reveal how girdling promotes leaf color expression in Acer rubrum LSoluble sugar and flavonoid concentrations of leaves collected from upper stem, lower stem and control branch. Standard error bars represent ± 1 SE. Different letters (a and b) behind the data indicate significant (P < 0.05) differences between leaf positions. (US represents the upper stem; LS represents the lower stem; CB represents the control branch)Back to article page