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目的:制定川续断种子的质量分级标准。方法:对来自不同居群的川续断成熟种子进行千粒重、含水量、发芽率、生活力、单粒大小、净度等指标的测定和外观形态的观察,使用SPSS统计软件,通过聚类分析制定川续断种子的质量分级标准。结果:Ⅰ级川续断种子的发芽率不低于85%,千粒重不低于3.94 g,净度不低于90.95%,含水量不高于9.08%;Ⅱ级川续断种子的发芽率不低于64%,千粒重不低于3.57 g,净度不低于83.66%,含水量不高于10.23%;Ⅲ级川续断种子的发芽率不低于35%,千粒重不低于3.04 g,净度不低于75.51%,含水量不高于11.37%。结论:千粒重和发芽率是川续断种子质量分级标准的主要指标,净度和含水量是质量分级标准的重要参考指标。该方法制定的质量分级标准科学、可行,可作为川续断种子的质量控制标准。
Objective: To establish the quality grading standards of Chuanxiong broken seeds. Methods: The indexes of 1000-grain weight, water content, germination rate, viability, grain size and net density of mature seeds from different populations were observed and observed by SPSS statistical software and cluster analysis Develop Chuanxiong broken seeds quality grading standards. Results: The seed germination rate of Ⅰ seeds was not less than 85%, the grain weight was not less than 3.94 g, the clarity was not less than 90.95% and the water content was not higher than 9.08%. The seed germination rate of Ⅱ seeds was not Less than 64%, 1000 grain weight of not less than 3.57 g, the clarity of not less than 83.66%, the water content of not more than 10.23%; Ⅲ grade Dictyospermum seed germination rate of not less than 35%, 1000 grain weight of not less than 3.04 g, Clarity of not less than 75.51%, moisture content not higher than 11.37%. Conclusion: The 1000-grain weight and germination rate are the main indexes of seed quality grading standards. The clarity and water content are important reference indexes of quality grading standards. The method of quality classification standards developed by science, feasible, can be used as the quality control standards of Sichuan seeds cut off.