潞党参的种苗质量分级标准

Quality Grading Standards for Codonopsis pilosula Seeds

目的:拟制定出潞党参的种苗质量分级标准。方法:以山西省道地产区的21份潞党参种苗为试验样品,通过测定种苗单株鲜质量、苗长、苗粗、芽体长和芽体个数等指标,并利用K-均值聚类分析法划分种苗级别,结合实际生产制定分级标准。结果:将党参种苗划分为3个等级,一级种苗苗长21.0~29.0 cm,苗粗5.0~8.0 mm,单株鲜质量2.0~3.0 g;二级种苗苗长15.0~20.9 cm,苗粗4.7~4.9 mm,单株鲜质量1.6~1.9 g;三级种苗苗长10.0~15.0 cm,苗粗3.7~4.7 mm,单株鲜质量1.5~1.6 g。结论:综合分析党参药材产量、返青率和投入成本等指标,实际生产中推广采用一级或二级种苗。

Objective:This study aimed to investigate quality grading standards for Codonopsis pilosula seeds.Methods:A total of 21 shares of C.pilosula seeds were collected in Shanxi province as research materials.On the basis of fresh weight per plant seedlings long buds diameter and the number of buds,the quality grading standards for C.pilosula seeds with K-center clustering method were established.Results:C.pilosula seedlings were divided into three levels:level 1:buds long 21.0-29.0 cm,buds diameter 5.0-8.0 mm,fresh weight per plant 2.0-3.0 g;level 2:buds long 15.0-20.9 cm,buds diameter 4.7-4.9 mm,fresh weight per plant 1.6-1.9 g;level 3:buds long 10.0-15.0 cm,buds diameter 3.7-4.7 mm,fresh weight per plant 1.5-1.6 g.Conclusion:Based on the comprehensive analysis of the green recovery rate and input cost of Radix Codonopsis,it is suggested to adopt primary and secondary seedlings in standardized production.