[Comparison of the content of effective components between tree peony wild species and main cultivars]

To determine the content of paeonol and paeoniflorin in wild tree peony species and main medicinal cultivars in order to provide scientific foundations for the industrialization of tree peony cortex.

HPLC was used to compare the effective content of different resources.

(1) The content range of paeonol and paeoniflorin of 7 wild species was 0.10%-0.61% and 2.22%-5.57%, respectively; (2) The content range of paeonol and paeoniflorin of all cultivars from different producing area was 0.33%-1.43% and 1.60%-2.85%; (3) The content range of paeonol and paeoniflorin of different cultivars in the same place (Changping, Beijing) was 0.27%-0.75% and 1.87%-3.96%; (4) The content range of paeonol of cultivars from the same area was 0.34%-1.10%. There was no significant difference of relative content of paeoniflorin from the same areas.

The relative content of main medicinal components of wild species was not higher than cultivar; the differences were significant among cultivars; the relative content of paeonol of 'JSF' was high; more attention of choosing cultivars and producing areas should be paid in tree peony cortex producing.