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目的:研究野生与栽培红芪中微量元素的差异,探讨微量元素鉴别野生与栽培红芪的可行性。方法:采用原子吸收光谱法测定微量元素含量,并进行单因素方差分析、相关性、最优尺度度量分析、聚类分析及判别分析。结果:野生与栽培红芪中Cu含量无显著性差异,Fe,Ca,K,Zn,Ni,Na,Mg,Mn,Cr,Li,Co含量均具显著性差异性;Mg,K,Fe,Ca,Cu,Ni含量野生品高于栽培品,Zn,Na,Mn,Cr,Li,Co含量栽培品高于野生品;红芪样品生长类型与Fe,Ca,K,Ni,Mg元素含量呈极显著的正相关,与Zn元素含量呈显著的负相关,与Na,Mn,Cr,Li,Co元素含量呈极显著的负相关;28批红芪样品分为野生品与栽培品两类;Fe,Li,Co与野生、栽培生长类型存在Fisher线性关系。结论:红芪野生与栽培生长类型与微量元素含量存在密切关系,微量元素鉴别野生与栽培红芪有一定可行性。
Objective: To study the difference of trace elements between wild and cultivated Radix Hedysari, and discuss the feasibility of differentiating wild and cultivated Radix Hedysari by trace elements. Methods: The contents of trace elements were determined by atomic absorption spectrometry. One-way ANOVA, correlation, optimal measurement, clustering analysis and discriminant analysis were used. Results: The content of Cu in wild and cultivated Radix Hedysari had no significant difference, and the contents of Fe, Ca, K, Zn, Ni, Na, Mg, Mn, Cr, The contents of Ca, Cu and Ni were higher than that of cultivars, while those of Zn, Na, Mn, Cr, Li and Co were higher than that of wild ones. The growth types and contents of Fe, Ca, K, Ni and Mg Significantly negative correlation was found between the content of Na, Mn, Cr, Li and Co. There were 28 batches of Radix Astragali were divided into wild and cultivated products. There was a Fisher linear relationship between Fe, Li, Co and wild and cultivated growth types. Conclusion: There is a close relationship between the type of wild and cultivated Radix Hedysari and the content of trace elements. The trace element identification of wild and cultivated Radix Hedysari is feasible.