| 9种轻型屋顶绿化景天属植物的抗旱性研究 |
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| 引用本文： | 周媛,徐冬云,董艳芳,陈法志,童俊,谢焰锋,陈玉香,郭彩霞.9种轻型屋顶绿化景天属植物的抗旱性研究[J].中国农学通报,2012,28(25):294-301. |
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| 作者姓名： | 周媛 徐冬云 董艳芳 陈法志 童俊 谢焰锋 陈玉香 郭彩霞 |
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| 作者单位： | 1. 武汉市林业果树科研所/湖北省园林植物工程技术中心,武汉,430075
2. 湖北省武汉市新洲区阳逻街林业站,武汉,430415 |
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| 基金项目： | 武汉市晨光计划（200950431211） |
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| 摘 要： | 为了筛选适宜无养护轻型屋顶绿化的抗旱植物，以胭脂红景天(Sedum spurium ‘Coccineum’)、佛甲草(S. lineare)、金叶佛甲草(S. lineare ‘JinYe’)、八宝景天(S. spectabile ‘Borea’)、松塔景天(S. nicaeense)等9种景天属植物为试验材料，通过光照培养箱模拟屋顶绿化环境进行控水试验，研究干旱胁迫下不同品种叶片含水量、超氧化物歧化酶,(SOD)活性、丙二醛(MDA)含量等抗旱相关生理指标的变化情况，同时观察景天的外部形态变化。结果表明：随着干旱胁迫时间的增加，抗旱性强的品种叶片含水量下降幅度较小，脯氨酸反应不剧烈；除胭脂红景天外，大部分景天品种膜脂过氧化程度较轻，说明景天属植物总体上抗旱性较强。通过隶属函数法综合分析，9种轻型屋顶绿化景天属植物的抗旱性由强至弱的顺序为：佛甲草>八宝景天>垂盆草>宽叶佛甲草>费菜>德景天>松塔景天>金叶佛甲草>胭脂红景天。
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| 关 键 词： | SRAP分析 SRAP分析 |
| 收稿时间： | 2012/4/16 0:00:00 |
| 修稿时间： | 2012/5/24 0:00:00 |
Study on Drought Resistance of 9 Sedums for Light Roof Greening |
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| Zhou Yuan
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Xu Dongyun
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Dong Yanfang
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Chen Fazhi
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Tong Jun
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Xie Yanfeng
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Chen Yuxiang
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Guo Caixia.Study on Drought Resistance of 9 Sedums for Light Roof Greening[J].Chinese Agricultural Science Bulletin,2012,28(25):294-301. |
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| Authors: | Zhou Yuan Xu Dongyun Dong Yanfang Chen Fazhi Tong Jun Xie Yanfeng Chen Yuxiang Guo Caixia |
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| Institution: | 1Wuhan Scientific Research Institute of Forestry ＆ Fruit-tree/Hubei Engineering Technology Research Center of Landscape Plant,Wuhan 430075;2Forestry Workstation of Yangluo Street of Xinzhou District,Wuhan 430415) |
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| Abstract: | In order to select drought-resistant plants for un-serviced light roof greening,9 Sedum cultivars were investigated such as Sedum spurium＇Coccineum＇,S.lineare,S.lineare＇Jinye＇,S.spectabile＇Borea＇ and S.nicaeense etc.Leaf water content,SOD（superoxide dismutase） activity,MDA（malondialdehyde） content and plant appearance etc.were observed under successive drought stress in light incubator which simulated green roof environment.The results showed that with the days of drought stress increasing,the leaf water content decreased slightly and proline less reacted;Membrane lipids proxidation in most of Sedum cultivars were slighter than which in S.spurium＇Coccineum＇.The results indicated that most Sedums had high drought resistance.The drought resistance of 9 Sedums were comprehensive evaluated with subordinate function,their drought-resistance order was S.lineareS.spectabile＇Borea＇S.sarmentosumS.lineare＇Kuanye＇S.aizoonS.hybridumS.nicaeenseS.lineare＇Jinye＇S.spurium＇Coccineum＇. |
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| Keywords: | drought stress Sedum drought resistance roof greening physiological character |
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