Figure 4.

Main volatile compounds of floral fragrance released by 17 herbaceous peony cultivars. 1−17 represents 17 cultivars, and numbers assigned as described in Figure 2. (A) The relative contents of 26 main volatile components from 17 cultivars. (B) The proportion of 26 main volatile components from 17 cultivars. (C) Trend comparison of relative content and sensory evaluation score. Data represent means and standard errors of three biological replicates, and the relative content is calculated using the internal standard method. Detailed data were shown in the Supplementary Table S4.