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

Figure 2

Quantitative variation of iridoid glycosides between different organs. (Description: this figure shows the quantitative variation of four iridoid glycosides between different organs of 1-, 2-, and 3-year-old G. rigescens resources based on HPLC method. The content of metabolites is represented as the average value and the standard deviations of these metabolites are also presented.)