Abstract: In order to investigate the distribution of mineral elements and heavy metal elements contents and their correlation in the various organs of Coleus blumei Benth with different concentrations of Se (0, 0.2, 0.5, 1.0, 1.5, 2.0, 2.5 mg·L^-1), a pot experiment was conducted. The results showed that the content and distribution of mineral elements and heavy metal contents in the roots, stems and leaves of C. blumei Benth changed significantly with different concentrations of Se, the sequence of K and Ca contents was in stems>leaves>roots, Fe and Mn contents was in roots>leaves>stems, Zn content was in leaves>stems>roots. The sequence of Na and Mg contents with low concentration of Se (≤ 0.5 mg·kg^-1) treatments was in roots>stems>leaves and leaves>roots>stems, respectively, but the sequence of Na and Mg contents with high concentration of Se (≥ 1.0 mg·kg^-1) treatments was in stems>roots>leaves and leaves>stems>roots, respectively. The sequence of Cr and Cd contents was in roots>stems>leaves, Pb content was in roots>leaves>stems. Correlation analysis showed that: (1) there were significant positive correlations between Se content and contents of As and Pb, but were no significant correlations between Se content and contents of K, Ca, Na, Mg, Fe, Mn, Cu, Zn, Cr and Cd in the roots of C. blumei Benth. For 13 kinds of elements, the element pairs with positive correlations were no more than those with negative correlations and showed a complex network structure. (2) There were no significant correlations between Se content and contents of K, Ca, Na, Mg, Fe, Mn, Cu, Zn, Cr, Cd, As and Pb in the stems. For 13 kinds of elements, the element pairs with positive correlations were more than those with negative correlations and showed two simple network structures. (3) There were significant negative correlations between Se and Ca contents, but were no significant correlations between Se content and contents of K, Na, Mg, Fe, Mn, Cu, Zn, Cr and Cd in the leaves. For 13 kinds of elements, the element pairs with positive correlations were more than those with negative correlations and showed two simple linear structures.

Key words: Coleus blumei Benth, selenium treatments, elements distribution, correlation analysis