土壤因子对药用白菊花活性成分含量影响研究

目的:研究土壤因子对药用白菊花活性成分的影响,筛选主导因子。方法:测定不同产地药用白菊花中水溶性浸出物、黄酮类化合物、酚类化合物和矿质元素含量,分析相应土壤化学性状和矿质元素含量,应用相关分析、逐步回归分析、通径分析、灰色关联等统计方法探讨土壤因子对药用白菊花活性成分含量的影响。结果:土壤化学性状中对药用白菊花活性成分总体影响最大的为速效磷和速效钾,其次为脲酶、磷酸酶、蔗糖酶活性和有机质;药用白菊花中矿质元素与土壤矿质元素具有良好的相关性,其中对元素磷(P)、钾(K)的富集能力较强,其次是镉(Cd)、钙(Ca)、锌(Zn)、铜(Cu),影响药用白菊花活性成分含量的土壤矿质元素主要为磷(P)和钾(K),其次是铁(Fe)、铜(Cu)、锌(Zn)。结论:土壤因子是影响药用白菊花活性成分含量的重要因素。

Effects of soil factors on active component content ofChrysanthemum morifolium

Objective: To study the effects of soil factors on the active component content of Chrysanthemum morifolium and screen out the leading factors. Method : The active component of water soluble extracts, flavonoids, phenolic compounds and mineral elements were determined and chemical properties and mineral elements of soil were analyzed for studying the effects on Ch. morifolium through correlation, stepwise regression, path and grey correlation analysis. Result : Soil available P and K were the most important factors that affected the active component content of Ch. morifolium, followed by urease, phosphatase and invertase activities and organic matter. The mineral elements in Ch. morifolium and in soil correlated well, P and K were enriched in the plant mostly, followed by Cd, Ca, Zn, Cu. The main leading factors of mineral elements in soil were P and K, followed by Fe, Cu and Zn. Conclusion : Soil was one of the important factors which affected the active component content of Ch. morifolium.