Fig. 7From: An NIRS-based assay of chemical composition and biomass digestibility for rapid selection of Jerusalem artichoke clonesFeedstock quality grades distribution of 59 Jerusalem artichoke accessions in China. a National scope. b Regional scope. Different small letters indicate significant differences among six typical regions at P < 0.001. The solid lines overlaid upon each histogram represent normal distributions and were used to embody the discrepancy between histogram and normality. NEC Northeast China, NC North China, EC East China, CSC Central-South China, NWC Northwest China, and SWC Southwest ChinaBack to article page