The changes of POD and SOD in aging three days hypocotyl took a single peak or a double peak curve pattern.The change of MDA content was influenced by the activities of POD and SOD significantly.

• 老化处理后发芽3d的幼苗下胚轴中POD、SOD活性的变化，表现为单峰或双峰曲线，而MDA含量受POD、SOD活性的影响，与POD活性变化达到了极显著的负相关。