FIGURE 8 C4H activity of A. trifoliata in different habitats
3.4  | Effect of rocky desertification habitat on medicinal ingredients content in A. trifoliata
It can be seen from Figure 9 that with the growth and development ofA. trifoliata , the oleanolic acid content in roots, stems and leaves first increased and then decreased, and the content of oleanolic acid in roots > leaves > stems. At the same time, the increasing rate of oleanolic acid content in rocky desertification habitat was faster, and the content was significantly higher than that in normal habitat. In Guanling base, the difference of roots was the biggest in October, increased by 1.45 times, the difference of stem in October was the largest, increased by 1.92 times, and the difference of leaves in June was the largest, increased by 1.26 times; In Huaxi base, the difference of root was the biggest in September, increased by 1.17 times, stem was the biggest in October, increased by 1.69 times, leaf was the biggest in June, increased by 1.25 times. In conclusion, the content of oleanolic acid in roots, stems and leaves of A. trifoliata could be increased in rocky desertification habitat.