To discuss the difference of development between the nurse seed grafting union in Camellia oleifera and the healing wound,the test materials were sampled with interval in 2-55 days after treatment,and some physiological phenylpropanoid metabolic indices were measured.The phenylalanine ammonialyase(PAL) activities of the grafting union were highly significantly lower than the healing wound.During 14-35 days after treatment,the peroxidase(POD) activities of the grafting union were highly significantly higher....