摘要
以日本厚朴、山樱和美国七叶树的引种实生苗为试材,系统地分析了低温胁迫下其植株的生理生化变化,研究了日本厚朴、山樱和美国七叶树的越冬抗寒机理。试验结果表明,-30℃是日本厚朴安全越冬的低温临界值;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。
Magnolia obovata, Prunus Sargenti and Aesculuschinensis Bunge were used as test materials in order to study the effects of low temperature on physiological and biochemical changes. Overwintering cold resistant mechanism of them was studied. Result showed that -30℃ was the critical temperature of Magnolia obovata during its living through the winter. Changes of proline content and exosmosis conductance rate were significant, which could be considered as the physiological index of identifying cold resistance of Magnolia obovata, Prunus Sargenti and A esculuschinensis Bunge.
出处
《安徽农业科学》
CAS
北大核心
2007年第5期1298-1299,共2页
Journal of Anhui Agricultural Sciences
