Changes of proline content and exosmosis conductance rate were significant,which could be considered as the physiological index of identifying cold resistance of Mag...

• 低温诱导过程中组织中游离脯氨酸含量与外渗电导率变化明显,可以作为鉴定日本厚朴、山樱和美国七叶树抗寒性的生理指标。