Figure 4

Contents of four diterpenoids in various tissues of Andrographis paniculata at different growth stages (A–G) in greenhouse experiment (January 2007). Stages were as follows: A. Seedling (7 days); B. First true leaf (14 days); C. Transfer (45 days); D. Vegetative (114 days); E. 50% Flowering (141 days); F. Seed-forming (149 days); and G. Mature seed (206 days).