采用不同激素及浓度配比对蓖麻不同外植体进行愈伤组织诱导。结果表明以幼嫩真叶、茎尖愈伤组织诱导效率最高,子叶柄、真叶柄次之,而子叶、根、胚轴愈伤组织诱导效率较低。 Callus induction was conducted on different explants of castor by using different hormones and their concentrations. The results showed that the callus induction efficiency of young leaves and shoot tips was highest, followed by the cotyledonary petioles and true petioles, while the cotyledons, roots and hypocotyls were less efficiently induced.