| 乌桕幼苗耐旱性研究 |
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| 引用本文： | 陈景震,李培旺,张良波,李昌珠,皮兵.乌桕幼苗耐旱性研究[J].湖南林业科技,2013(3):55-57. |
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| 作者姓名： | 陈景震 李培旺 张良波 李昌珠 皮兵 |
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| 作者单位： | 湖南省林业科学院,湖南长沙410004 |
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| 基金项目： | 国家林业公益专项项目（201004071）;国家十二五科技支撑项目（2011DAD22808）. |
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| 摘 要： | 采用PEC,6000模拟干旱胁迫和自然干旱胁迫两种方法，通过测定土壤含水量、叶片电导率、叶片丙二醛含量等指标，分析比较不同品种乌桕幼苗在干旱胁迫下的生理生化变化及耐旱性。结果表明：鸟桕幼苗优13和优24耐旱性较强，优23子代幼苗耐旱性最弱。PEC6000模拟干旱胁迫与自然干旱胁迫试验结果基本一致，可以在一定程度上反映正常的干旱胁迫。
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| 关 键 词： | PEG6000模拟干旱 自然干旱 丙二醛含量 电导率 土壤含水量 乌桕幼苗 |
Research on drought tolerance of Sapium seedlings |
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| CHEN Jingzhen,LI Peiwang,ZHANG Liangbo,LI Changzhu,PI Bing.Research on drought tolerance of Sapium seedlings[J].Hunan Forestry Science & Technology,2013(3):55-57. |
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| Authors: | CHEN Jingzhen LI Peiwang ZHANG Liangbo LI Changzhu PI Bing |
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| Institution: | (Hunan Academy of Forestry, Changsha 410004, China) |
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| Abstract: | The physiological and biochemical characteristics and drought tolerance of different Sapium seedlings under drought stress were analyzed and compared by measuring soil water content, leaf relative conductivity, MDA and other indicators while the PEG6000 solution simulated drought stress and the natural drought stress method were used. The results showed that, No.13 and No. 24 progeny seedlings had strong drought tolerance, the weakest was No.23. The results by PEG6000 simulated drought test were the same as the results by natural drought test, so it could reflect the normal drought stress to a certain extent. |
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| Keywords: | PEG6000 simulated drought stress natural drought MDA content relative conductivity soil water content Sapium seedlings |
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