Abstract:

In this paper the physiological and biochemical characters of aqueous plant, Echinodorus amazonicus, under stress of two different kinds of herbicides, acetochlor and chlorimuron-ethyl, were investigated. Systematic determinations and analyses were carried out from the aspects of MDA content, the production rate of O2-, the content of H2O2, the activities of POD, the activities of SOD and the activities of CAT. The results showed that the above characters increased with the stress intensity. The peak value of physiological indicators under Acetochlor stress was higher than that under chlorimuron-ethyl stress.