Abstract:Seeds of Chinese medicinal plants Leonurus artemisia (Lour.) S. Y Hu, Platycodon grandoforus (Jacq.) A DC. and Atractylodes macrocephala Koidz. were used as materials for germination test under various storage conditions. The optimal germination temperature for L. artemisia and P grandoflorus were 25℃1℃, and that for A. macrocepha;a was 15 1℃. At optimal temperature, seed germination percentages of L. artemisia (25℃), P. grandiflorus (25℃) and A. macrocephala (15℃) were 69.8%, 39.8% and 46.8%, respectively. 15% of relative humidity (RH) was the optimal storage condition，followed by 43% RH．15℃ was the optimal temperature of seed storage for L. artemisia but 5 ℃ for P．grandiflorus．The germination percentage of P. grandiflorus seeds could be raised by PEG 6000 treatment，but contrary effect was observed in L. artemisia seeds．
