| 三种野生岩生草本植物的抗旱性综合评价 |
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| 引用本文： | 谢贤健,兰代萍,白景文.三种野生岩生草本植物的抗旱性综合评价[J].草业学报,2009,18(4):75-80. |
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| 作者姓名： | 谢贤健 兰代萍 白景文 |
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| 作者单位： | 内江师范学院资源与环境科学院,四川,内江,641000;内江师范学院后勤基建处,四川,内江,641000;中国科学院成都生物研究所,四川,成都,610041 |
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| 基金项目： | 国家科技部十五攻关项目(2001ba606a-6)资助 |
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| 摘 要： | 本试验选择自然状态下生长在岩石边坡上的３种野生岩生植物金发草和丛毛羊胡子草以及狗牙根为研究材料，通过盆栽干旱胁迫试验，研究和分析了干旱胁迫下３种野生岩生植物的叶面积指数、地下干物质量积累、叶片保水力；叶片相对电导率、可溶性蛋白、叶绿素等形态和生理指标，利用主成分分析法和隶属函数值法对影响３种野生岩生植物抗旱性的指标进行了分析评价。试验结果表明，３种草的抗旱性强弱顺序为金发草＞狗牙根＞ 丛毛羊胡子草。研究结果以期为筛选、培育适应于岩石边坡植被防护的乡土护坡植物的合理开发、利用提供理论依据。
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| 关 键 词： | 金发草 丛毛羊胡子草 狗牙根 干旱胁迫 抗旱性 |
| 收稿时间： | 1900-01-01; |
A comprehensive assessment of drought-resistance of three wild rocky-slope grasses |
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| XIE Xian-jian,LAN Dai-ping,BAI Jing-wen.A comprehensive assessment of drought-resistance of three wild rocky-slope grasses[J].Acta Prataculturae Sinica,2009,18(4):75-80. |
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| Authors: | XIE Xian-jian LAN Dai-ping BAI Jing-wen |
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| Institution: | 1.School of Resources and Environment Science of Neijiang Normal University;Neijiang 641000;China;2.Logistic Department of Neijiang Normal University;3.Institute of Biology;Chinese Academy of Sciences;Chengdu 610041;China |
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| Abstract: | The drought-resistance of three native,rocky-slope grasses(Pogonatherum paniceum,Eriophorum comosum and Cynodon dactylon) were studied in a pot experiment.Indexes such as leaf area index,drying roots accumulation,leaf holding water ability,leaf relative conductance,soluble protein,chlorophyll were analysed and a comparison of the subordinate function values of each grass was used to decide the drought-resistance order of each grass.Drought-resistance of P.panideum was stronger than C.dactylon which was stro... |
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| Keywords: | Pogonatherum paniceum Eriophorum comosum Cynodon dactylon drought-stress drought-resistance |
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