| 聚乙二醇模拟干旱对白蜡苗生理指标的影响 |
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| 引用本文： | 高祥斌,张秀省,蔡连捷,张敏.聚乙二醇模拟干旱对白蜡苗生理指标的影响[J].辽宁林业科技,2009(2):11-12. |
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| 作者姓名： | 高祥斌 张秀省 蔡连捷 张敏 |
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| 作者单位： | 聊城大学农学院,山东,聊城,252059 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用聚乙二醇（PEG-6000）模拟干旱处理白蜡苗，并对丙二醛（MDA）含量、过氧化氢酶（CAT）活性和游离脯氨酸（PRO）含量等抗性生理指标进行了测定，结果表明：随着PEG浓度的增大，白蜡苗的MDA含量和PRO含量也增大，CAT活性先增大后降低。20％PEG胁迫（相当于-0．6Mpa水势）可作为白蜡苗抗旱性的最高临界值。
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| 关 键 词： | 白蜡 聚乙二醇 生理指标 |
Effects of PEG-6000 simulated drought on some physiological indexes of Fraxinus chinensis seedings |
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| GAO Xiang-Bin,ZHANG Xiu-Sheng,CAI Lian-Jie,ZHANG Min.Effects of PEG-6000 simulated drought on some physiological indexes of Fraxinus chinensis seedings[J].Liaoning Forestry Science and Technology,2009(2):11-12. |
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| Authors: | GAO Xiang-Bin ZHANG Xiu-Sheng CAI Lian-Jie ZHANG Min |
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| Institution: | College of Agriculture;Liaocheng University;Liaocheng 252059;China |
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| Abstract: | This experiment was treated Fraxinus chinensis seedlings under PEG-6000 to simulate drought,and the physiological in-dexes,such as MDA content and catalase activities,praline(PRO)content of Fraxinus chinensis seedlings were determined and analyzed.The results showed that the MDA content and the PRO content of Fraxinus chinensis seedlings increased along with increasing PEG concentration;the CAT activity would first increase then decrease.Therefore,the 20% PEG stress should be the optimal critical value on d... |
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| Keywords: | Fraxinus chinensis PEG-6000 Physiological indexes |
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