Abstract:

A experiment of pot culture was carried out to investigate the effects of chromium on root system vigor, chlorophyll content, antioxidant enzymes activities and MDA content of Mentha haplocalyx Briq.. It was observed that with the increasing of chromium concentrations and time, root system vigor decreased continuously; on the contrary, MDA content of different organs increased; antioxidant enzymes activities reached a peak at 40 mg/L of chromium, then decreased; chlorophyll content increased then decreased with the increasing of chromium concentrations. The results suggested that antioxidant enzymes might play important roles to Mentha haplocalyx Briq. to chromium stress .Above 40 mg/L of chromium, the antioxidant enzymes would be destroyed and the growth of plants would be bad.