Abstract:

Objective: To investigate the relationship of trace elements spectra among the Isodon plants collected from Dali. Methods:Eleven trace elements of the six Isodon samples were determined by using flame atomic absorption spectrophotometer. Based on the content of the trace elements, the correlation of the Isodon samples was evaluated by grey relation analysis. Results: The trace elements spectra of the rhizomes and roots of I. yuennanensis, I. adenantha, and I. loxothyrsa showed close relationship. Conclusion: Results from this study could be useful for the evaluation of physiological mechanism and medicinal values of the underground part of Isodon plants.

Key words: Isodon plants, trace elements, grey relation analysis