| 大岩桐水分胁迫生理生化的研究 |
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| 引用本文： | 郭丽.大岩桐水分胁迫生理生化的研究[J].北方园艺,2011(18):92-95. |
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| 作者姓名： | 郭丽 |
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| 作者单位： | 河南农业职业学院,河南郑州,475470 |
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| 摘 要： | 以大岩桐组织培养苗为试材,在浓度为5％、15％、25％、35％的聚乙二醇(PEG-6000)人工模拟干旱条件下进行干旱胁迫试验,对叶绿素含量、膜透性等几个生理生化指标进行测定研究.结果表明:大岩桐对干旱胁迫非常敏感.在5％浓度的PEG处理下时,部分植株叶片就发生萎蔫甚至死亡.干旱胁迫对大岩桐叶片叶绿素、MDA、电导率、POD的影响表现为:随着干旱胁迫浓度的升高,叶绿素含量呈下降趋势；MDA、质膜透性呈上升趋势；POD呈先升后降趋势.
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| 关 键 词： | 大岩桐 干旱胁迫 抗性指标 |
Study on the Effect of Drought Stress on Physiological Index of Sinningia speciosa |
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| GUO Li.Study on the Effect of Drought Stress on Physiological Index of Sinningia speciosa[J].Northern Horticulture,2011(18):92-95. |
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| Authors: | GUO Li |
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| Affiliation: | GUO Li(Henan Vocational College of Agriculture,Zhengzhou,Henan 475470) |
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| Abstract: | Using the tissue culture plantlets of Sinningia speciosa as test material,content of the chlorophyll,MDA,and the membrane penetrability several physiological indices of Sinningia speciosa were studied under the concentration of 5%,15%,25%,35% PEG-6000 drought stress.The results showed that Sinningia speciosa was sensitive to drought for it could tolerate drought stress up to 5% concentrations of PEG.By exploring the relationship between physiological indices and the duration of drought.And found a trend tha... |
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| Keywords: | Sinningia speciosa drought stress indices of drought resistance |
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