川牛膝种子质量分级标准研究

Study on Seed Quality Standard of Cyathula officinalis Kuan

目的:制定川牛膝种子质量分级标准。方法:对所搜集的48份不同产地川牛膝种子进行发芽率、千粒重、生活力、净度和含水量等指标的测定,利用K聚类分析的数学分级原理,对发芽率、千粒重等指标的相关数据进行标准化转变,通过聚类分析,制定分级标准。结果:川牛膝种子质量等级可以分为3个,其中发芽率和千粒重作为分级的主要指标,生活力次之,净度和含水量是质量分级的参考指标。结论:此法制定的川牛膝种子质量分级标准科学可行,能够作为川牛膝药材规范生产的参考标准。

Objective：To formulate the seed quality grading standard of Cyathula officinalis Kuan.Method：Germination rate,thousand-grain weight,viability,purity and moisture content of 48 C.officinalis seed samples from different producing areas were tested.The data of germination and thousand-grain weight and other indexes were transferred to standard.Thus,the seed quality grading standard of C.officinalis was formulated by K-clustering.Result：The seed quality grading of C.officinalis were divided into 3 grades.Germination rate and thousand-grain weight were the primary indicators of seed quality grading,viability the secondary,purity and moisture content were reference indicators.Conclusion：The seed quality grading standard of C.officinalis was scientific and feasible by this method.And the grade could be as reference standard in standard producing of C.officinalis.