41 cultivars of Chinese jujube (Zizyphus jujuba Mill) were used to study the electrophoretic spectrums by polyaerylamide gel and starch gel electrophoresis.Five isozymes (peroxidase, esterase, amylase, polyphenol oxidase, superoxide dismutase) were tested.Results showed that zymograms were different in researched cultivars.Peroxidase zymograms varied greatly in the cultivars, but 14 bands appeared in shoot barks, 8 bands in leaves.However, the other enzymes had afewer bands and did not changed widely among ...