The Correlation Between Effective Components of American Ginseng and Climatic Factors
西洋参有效成分与气候生态因子的关系

The correlation between effective components of American ginseng and climatic factors were analyzed by using regression analysis and grey correlation analysis. Results show that air temperature and sunshine are main factors influencing the content of total saponin in American ginseng cultivated in China. In addition, the content of amino acid is negatively correlative with that of total saponin significantly and climatic factors have inverse effects on them. Daily range of temperature and sunshine duration are main factors influencing the content of ether-soluble, alcohol-soluble and water-soluble components in American ginseng.