The level of lipid peroxidation and changes of activited oxygen scavenging system in two maize species with different drought resistance were studied.The results showed the activities of POD?CAT?APX?GR were obviously increased under light water stress,while decreased under middle and severe water stress,but the sensitive degree of these enzymes to water stress is different,the activity of SOD is still increased under middle water stress.The change of GSH content is similar to enzyme's,while the content AsA ...