Comparison the Activities of Peroxidase,Catalase,Superoxide Dismutase and Peroxidase Zymogram in C-cytoplasmic Male Sterility Line on Maize

C478,478 and H01 which were the cytoplasmic male sterility line and its maintainer and restorer line of maize were conducted to comparatively analyze the activities of POD,CAT and SOD and peroxidase zymogram on their leaves and their tassel florets.The results showed that as the leaves development,POD activity on leaves of the male sterility line significantly differed from that in the maintainer and restorer line.The CAT activity had little differ-ence in tasseling stage,SOD activity in the male sterility line was higher than its maintainer and restorer line,and the difference was significant in every stages.As the tassel development,POD activity in the male sterility line was higher than its maintainer and restorer line in every stages of florets development,the CAT activity in tassel florets of the male sterility line was higher than the two others,and the difference was significant in stage I,SOD activity in the male sterility line was lower than its maintainer in stage II.As the maize development in tasseling and flowering,the peroxi-dase zymogram in the male sterility line significantly differed from that in the maintainer and restorer line.