The effects of different concentration aluminum (Al^3+) on the physiology leaf color were studied through sand culture. The results showed that: dissimilar concentration of aluminum had significant affects on the content of chlorophyll, caroteniod and soluble protein. The low concentration of Al^3+ treatments significant increased the content of soluble protein, anthocyanin, activities of PAL, and the percentage of color pigment in leaves of Loropetalum chinense var. rubrum, but it decreased the percentage of chlorophyll, Then it reversed ...