白花蛇舌草种子质量分级标准研究

Quality classification criteria of Oldenlandia diffusa seeds

目的:制定白花蛇舌草种子质量标准。方法:对所收集的30份不同产地和不同年份的白花蛇舌草种子进行发芽率、净度、千粒重、含水量和生活力等指标的测定,使用SPSS 11.0软件,利用K类系统聚类方法制定分级标准。结果与结论:以发芽率作为主要指标,净度、千粒重和含水量作为重要参考指标,初步制订了白花蛇舌草种子质量分级标准。

Objective： To establish the quality classification criteria of Oldenlandia diffusa seeds. Method： Thirty batches of O. diffusa seeds from different provenances with different collecting time were selected. And the seed germination percentage, seed pu- rity, weight per 1 000 grains, moisture content and seed viability were determined and analyzed through SPSS 11.0 software. Result and Conclusion： Seed germination percentage was selected as the main index for classification, while seed purity, weight per 1 000 grains and moisture content could be used as references. The quality classification criteria of 0. diffusa seeds have been initially estab- lished.