Fig. 2

Variations in dry biomass composition in sugarcane stalks. Sugar mass content (A) and frequency distribution (B) in sugarcane stalks; insoluble residue content (C) and frequency distribution (D) in sugarcane stalks; ratio (E) between biomass composition and its frequency distribution (F). Various genotypes of sugarcane were collected at five different times, and the numbers for the collections were 164, 162, 184, 70 and 48. Samples in different collections were merged together (n = 628) to calculate the distribution frequency of biomass component composition in B, D and F. Sug/Res, total soluble sugar/residues; Suc/Total, sucrose/total soluble sugar; Fru/Glc, ratio of fructose/glucose in soluble sugar