| Comparison of Drought-Resistance about Three Wild Rocky-Grasses |
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| 引用本文： | XIE Xianjian WEI Fangqiang BAI Jingwen LAI Ting. Comparison of Drought-Resistance about Three Wild Rocky-Grasses[J]. 武汉大学学报:自然科学英文版, 2007, 12(4): 729-736. DOI: 10.1007/s11859-006-0328-2 |
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| 作者姓名： | XIE Xianjian WEI Fangqiang BAI Jingwen LAI Ting |
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| 作者单位： | [1]Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences / Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China [2]Graduate University of the Chinese Academy of Sciences, Beijing 100049, China [3]Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China |
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| 基金项目： | The National Technologies Research and Development Program in the 10th Five-Year Plan of China（2001ba606a-6）. |
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| 摘 要： | In this experiment, using the methods of drought-stress in the pot and PEG simulative drought-stress, three native rocky-slope grasses Pogonatherum panideum（Lam.） Hack, Erioophorum comosum nees and Cynodon dactylon cultivated in the pots were selected as materials to study their drought-resistance by analyzing the indexes such as the leaf area index, the drying roots accumulation, the holding water ability of leaf, the relative conductance of leaf, the soluble protein, chlorophyll. At the same time, by comparing with membership function value of each index, the order of each grass drought-resistance was decided. The results showed that the drought-resistance of Erioophorum comosum nees was stronger than Cynodon dactylon and drought-resistance of Cynodon dactylon was stronger than Pogonatherum panideum （Lam.） Hack. The purpose of the experimental results was to find theoretical foundations for selecting and cultivating native protecting-slope vegetations to adapt to rocky slopes.
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| 关 键 词： | 抗旱性 野生草类 比较研究 岩石地区 |
| 文章编号： | 1007-1202（2007）04-0729-08 |
| 收稿时间： | 2006-10-22 |
| 修稿时间： | 2006-10-22 |
Comparison of drought-resistance about three wild rocky-grasses |
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| Xie Xianjian,Wei Fangqiang,Bai Jingwen,Lai Ting. Comparison of drought-resistance about three wild rocky-grasses[J]. Wuhan University Journal of Natural Sciences, 2007, 12(4): 729-736. DOI: 10.1007/s11859-006-0328-2 |
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| Authors: | Xie Xianjian Wei Fangqiang Bai Jingwen Lai Ting |
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| Affiliation: | (1) Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy, Chengdu, 610041, Sichuan, China;(2) Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China;(3) Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China;(4) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China |
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| Abstract: | In this experiment,using the methods of drought-stress in the pot and PEG simulative drought-stress,three native rocky-slope grasses Pogonatherum panideum(Lam.) Hack,Erioophorum comosum nees and Cynodon dactylon cultivated in the pots were selected as materials to study their drought-resistance by analyzing the indexes such as the leaf area index,the drying roots accumula-tion,the holding water ability of leaf,the relative conductance of leaf,the soluble protein,chlorophyll. At the same time,by com-paring with membership function value of each index,the order of each grass drought-resistance was decided. The results showed that the drought-resistance of Erioophorum comosum nees was stronger than Cynodon dactylon and drought-resistance of Cyno-don dactylon was stronger than Pogonatherum panideum(Lam.) Hack. The purpose of the experimental results was to find theo-retical foundations for selecting and cultivating native protect-ing-slope vegetations to adapt to rocky slopes. |
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| Keywords: | Pogonatherum panideum(Lam.) Hack Erioophorum comosum nees Cynodon dactylon drought-stress drought-resis-tance |
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