目的 筛选出适合陕西渭北汉源地区生长的黄芩优良种质。方法 将收集河北、山西、山东、陕西、安徽、甘肃、河南、内蒙古8个省份38批样品种质种植于淳化县种植基地，通过外观指数、药典常规项、含量测定3方面指标观测，综合评价药材品质，进一步筛选出适合陕西渭北汉源地区生长的黄芩优良种质。结果 不同省份产的黄芩样品外观分布有显著性差异；样品均符合《中国药典》2020年版的规定，其中河北产黄芩种源样品醇溶性浸出物水平最高，含水量最低，总灰分符合要求；山西与河北产黄芩总成分含量最高。结论 综合评价得河北产黄芩种质种植后所得药材品质更为优良。

Objective To screen the excellent germplasm of Scutellaria baicalensis suitable for growth in Hanyuan area of Weibei, Shaanxi Province. Methods A total of 38 batches of sample germplasm from Hebei Province, Shanxi Province, Gansu Province, Shaanxi Province, Anhui Province, Gansu Province, Henan Province and Inner Mongolia were collected and planted in the planting base of Chunhua County. By observing the appearance index, routine items of Pharmacopoeia and content determination, the quality of medicinal materials was comprehensively evaluated, and the excellent germplasm of S. baicalensis suitable for growth in Weibei Hanyuan area of Shaanxi Province was further screened. Results There were significant differences in the appearance distribution of S. baicalensis samples in different provinces, and the samples were in line with the provisions of 2020 Chinese Pharmacopoeia, in which the alcohol-soluble extract level of S. baicalensis provenance samples in Hebei Province was the highest, the water content was the lowest, and the total ash content met the requirements. The content of total components in Shanxi Province and Hebei Province were the highest. Conclusion Comprehensive evaluation showed that the quality of medicinal materials obtained from germplasm planting in Hebei Province was better.

R286.2

陕西省科技厅项目（2016KTTSSF01-01-01）；陕西中医药大学“秦药”品质评价与资源开发学科创新团队项目（2019-QN01）