[Correlation Between Index Components and Climatic Factors of Pseudostellariae Radix].

ABSTRACT

Objective: To analyze the correlation between index components and climatic factors of Pseudostellariae Radix. Methods: Correlation analysis ( CA), partial least square (PLS) and PCA ordination were applied to analyze the correlation of index components in Pseudostellariae Radix and climatic factors, and to explore the main climatic factors affecting the accumulation of index components in Pseudostellariae Radix. Results: The origin and harvest time had influence on index components. The monthly minimum temperature, monthly average humidity, monthly precipitation and the annual precipitation were the dominant factors influencing the content of index components. Conclusion: Through the positive and negative correlation between climatic factors and index components, it could explain the rationality of traditional harvest time and the reason of high content of heterophyllin B in Pseudostellariae Radix from Jiangsu Jurong.