5 Within different growth periods of donor and receptor,peroxidase isozyme(POX) and phosphoglucomutase(PGM) were selected to identify somatic hybrids.

• 5 在供、受体亲本生长的不同时期取材,进行不同种类同工酶的筛选,选出了两种在供受体亲本间表现差异明显的同工酶:过氧化物酶(POX)和磷酸葡萄糖变位酶(PGM)。