Abstract: Certain isozyme systems and soluble proteins were analyzed for Jinghn 1 hybrid and its parent plants.The results showed that peroxidase,esterase and soluble proteins changed with the growing stages and nutrition status during seed germination.However there were no differences between the hybrid and its parents in the isoenzymes of peroxidase,esterase,catalase and amylase in the same germination period,and no differences were found in the soluble protein maps of the hybrid and its maternal parent.Analyses on 6 cultivars of watermelon, African watermelon and gourd indicated that African watermelon and gourd were obviously different to the 6 cultivars of watermelon on the maps of peroaldase and esterase.Among 6 cultivars of watermelon some differences were found in peroxidase isozyme,while no significant differences were found in esterase isozyme.Peroxidase isozyme can be used in the identification of some cultivars of watermelon.

Key words: Isozyme, Soluble proteins, Watermelon

CLC Number: 

• S651.01