本文报告用放射免疫分析法测定二年生毛花洋地黄叶中毛花甙C的含量变化。结果表明,毛花洋地黄叶中毛花甙C的含量存开花前半个月迅速增加,开花前一星期至开花的第一个星期内逐渐增加达最高,以后又较快地降低。毛花甙C在一天中的含量以下午4点至6点保持较高水平。本研究可供选择采收时间作参考。 In this paper, radioimmunoassay method was used to determine the content of C in the yellow hairs of Dioscorea zingiberensis. The results showed that the content of C in the yellow flowers of D. grandis increased rapidly in the first two months of flowering, gradually increasing from the week before flowering to the first week of flowering, and then decreased rapidly afterwards. The content of Flounder C in the day is kept at a high level from 4pm to 6pm. This study allows for selection of harvest time for reference.