Methods: Percentage of restraining platelet aggregation, prothrombin time and partial thromboplastic time were measured to compare the huoxuehuayu effects of different populations of safflower.

• 方法：测定血小板聚集抑制率、凝血酶原时间和部分凝血活酶时间，比较不同栽培居群红花的活血化瘀作用。