| 3种外来树种抗寒性生理指标的比较 |
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| 引用本文： | 赵媛媛,刘明国,赵伟浩.3种外来树种抗寒性生理指标的比较[J].安徽农业科学,2007,35(5):1298-1299. |
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| 作者姓名： | 赵媛媛 刘明国 赵伟浩 |
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| 作者单位： | 沈阳农业大学林学院,辽宁沈阳,110161;沈阳农业大学林学院,辽宁沈阳,110161;沈阳农业大学林学院,辽宁沈阳,110161 |
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| 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.
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| 关 键 词： | 抗寒性 可溶性糖 丙二醛 脯氨酸 超氧化物歧化酶 |
| 文章编号： | 0517-6611（2007）05-01298-02 |
| 修稿时间： | 2006-11-11 |
Study on Cold Tolerance of Foreign Trees |
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| ZHAO Yuan- yuan et al.Study on Cold Tolerance of Foreign Trees[J].Journal of Anhui Agricultural Sciences,2007,35(5):1298-1299. |
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| Authors: | ZHAO Yuan- yuan |
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| Institution: | School of Forestry, Shengyang Agricultural University, Shengyang, Liaoning 110161 |
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| Abstract: | 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 Aesculuschinensis Bunge. |
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| Keywords: | Cold resistance Soluble sugar MDA Proline SOD |
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