DCR media supplemented with0 .5 mg/L 2 ,4- D was suitable for regenerated roots formation from calli of Ginkgo biloba L .

• 附加 0 .；5mg/ L 2；4 - D的 DCR培养基较适合愈伤组织再生根的形成；从子叶上能直接诱发不定根 ;