金铁锁不同居群药材质量评价研究

目的：对珍稀濒危植物金铁锁不同野生居群药材样品进行质量评价，为其人工引种、良种选育及规范化种植提供科学依据。方法：用水分测定法、灰分测定法、浸出物测定法对16份不同居群的金铁锁药材质量进行了评价研究。结果：不同居群药材样品的水分、总灰分、浸出物含量有显著的差别。其中，象山居群药材的水分和总灰分含量最低，浸出物含量最高；六德居群药材的总灰分含量最高，浸出物含量最低；顺州居群药材的水分含量最高。结论：不同野生居群药材质量有差别，发现稀缺药用植物金铁锁优势居群为其人工培植和可持续利用提供科学依据。

A Comparative Study on Quality of Different Populations of Wild Herbs of Psammosilene tunicoides

This article was aimed to carry a comparative study on the quality of 16 populations of wild herbs of rare and endangered plant of Psammosilene tunicoides in order to provide a basis for its domestication, GAP and selective breeding. Methods for determination of moisture content, total ash and extract content were taken in this comparative study. The results showed that different populations had different moisture content, total ash and extract content. The moisture content and the total ash of Xiang-Shan population were the lowest; and the extract content was the highest. The total ash of Liu-De population was the highest; and the extract content was the lowest. The moisture content of Shun-Zhou population was the highest. It was concluded that different populations had different quality among 16 populations of wild herbs. Therefore, there was a probability to choose the best population.