Figure 4

The effects of the different treatments on the yield of Isatis indigotica. The values shown are the mean ± SD, n = 3. Asterisks indicate a significant difference at the P ≤ 0.05 level.
The effects of the different treatments on the yield of Isatis indigotica. The values shown are the mean ± SD, n = 3. Asterisks indicate a significant difference at the P ≤ 0.05 level.