ABA(1 mg/L) and mannitol (20g/L) can improve the growth state of calli, mitigate browning and obtain more granular Basta calli that are fineand close in texture.

• 在继代培养基中补加低浓度的ABA（1mg/L）和甘露醇（20g/L），能普遍改善愈伤组织生长状况，减少褐化现象的产生，得到较多结构致密的颗粒状抗性愈伤。