| 两种沙生植物抗旱生理指标的比较研究 |
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| 引用本文： | 徐世健,李新荣.两种沙生植物抗旱生理指标的比较研究[J].西北植物学报,2000,20(2):224-228. |
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| 作者姓名： | 徐世健 李新荣 |
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| 作者单位： | 1. 兰州大学生命科学学院,兰州,730000
2. 中国科学院沙坡头沙漠试验站,兰州,730000 |
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| 基金项目： | 中国科学院兰州沙漠研究所沙坡头试验站资助项目!( 970 8)，中国科学院阜康荒漠生态观测试验站资助项目 |
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| 摘 要： | 以沙坡头地区自然生长和人工灌溉条件下的沙冬青（Ａｍｍｏｐｉｐｔａｎｔｈｕｓ ｍｏｎｇｏｌｉｃｕｓ）和柠条（Ｃａｒａｇａｎａ ｋｏｒｓｈｉｎｓｋｉｉ）为材料，对它们部分抗旱生理指标的变化进行了研究，结果表明，沙冬青对干办迫最敏感，这些生理指标随着个体发育阶段的不同变化，并具种间差异性。可溶性糖和游离氨基酸（特别是Ｐｒｏ）在干旱环境植物中均有较高含量，沙冬青有较高的热值，类黄酮水平未见差异性变化。
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| 关 键 词： | 沙冬青 柠条 抗旱性 生理指标 适应性 渗透调节 |
| 文章编号： | 1000-4025-(2000)02-0224-05 |
| 修稿时间： | 1999-04-10 |
Comparative study on drought-resistance indexes of two desert plants |
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| XU Shi jian,AN Li zhe,FENG Hu yuan,WANG Xun ling,LI Xin rong.Comparative study on drought-resistance indexes of two desert plants[J].Acta Botanica Boreali-Occidentalia Sinica,2000,20(2):224-228. |
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| Authors: | XU Shi jian AN Li zhe FENG Hu yuan WANG Xun ling LI Xin rong |
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| Abstract: | The changes of soluble sugars,free prolines,caloric values and flavonoid of leaves from Caragana korshinskii and Ammopiptanthus mongolicus (Maxim.) Cheng f. derived from Shapotou were investigated.The results showed it was A.mongolicus that was more sensitive to drought stress.The levels of drought resistance indexes varied with developing period and species.More contents of soluble sugar and free amino acid were found in stressed plants,while A.mongolicus had a higher caloric value than that of C.korshinskii and in the two species there is no obvious change in the content of flavonoid. |
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| Keywords: | Ammopiptanthus mongolicus Caragana korshinskii drought resistance physiological indexes |
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