Quantitative and Qualitative Characterization of Gentiana rigescens Franch (Gentianaceae) on Different Parts and Cultivations Years by HPLC and FTIR Spectroscopy

Figure 5

The score plots of G. rigescens samples based on the first two PCs. (Description: (a) shows the classification result between different cultivation ages, where the first 2 PCs can explain 59.7% information of total variance. (b) shows the classification result between different organs, where the first 2 PCs can explain 73.8% information of total variance.)

(a)

(b)