Fig. 1

The content of dihydromyricetin (DHM) in different leaf stages and tissues of A. grossedentata. a. The young and old leaves from A. grossedentata. 1–3: young leaves; 4–5: old leaves. Leaves part were used for experiment without branch, bar indicate 1 cm. b. The content of dihydromyricetin (DHM) in different tissues of vine tea. L1–3: young leaves; L4–5: old leaves, S: stems, R: roots. The height of each bar represents a mean of 3 replicates, ANOVA was processed for statistical analysis by using SPSS 18.0 software