| 偃麦草属植物种质材料苗期耐盐性综合评价 |
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| 引用本文： | 孟林,尚春艳,毛培春,张国芳,安沙舟.偃麦草属植物种质材料苗期耐盐性综合评价[J].草业学报,2009,18(4):67-74. |
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| 作者姓名： | 孟林 尚春艳 毛培春 张国芳 安沙舟 |
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| 作者单位： | 1.北京市农林科学院 北京草业与环境研究发展中心,北京 100097; 2.新疆农业大学草业与环境科学学院 新疆草地资源与生态重点实验室,新疆 乌鲁木齐 830052 |
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| 基金项目： | 国家自然科学基金项目(30571321);;“十一五”国家重点科技支撑项目(2008BADB3B05);;北京市农林科学院常规育种财政专项;;农业部牧草种质资源保护项目资助 |
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| 摘 要： | 采用温室苗期模拟NaCl盐分胁迫方法,对来自于21个国家的偃麦草属8个植物种34份种质材料苗期的叶片相对含水量、相对电导率、脯氨酸、K+/Na+、相对生长速度变化率、耐盐系数、存活率和出现盐害到死亡的时间等指标进行测定与分析,并对偃麦草属植物种质材料苗期的耐盐性进行综合评价。结果表明,上述指标均是偃麦草属植物种质材料苗期耐盐性评价的有效指标。且通过对0.9%NaCl浓度下的各项指标进行综合聚类,可将34份偃麦草属植物种质划分为3个耐盐级别,即耐盐种质有ER030、ER035、ER041、EE011、EE014、EE017、EE023、EE026、EE047、EH001、EH002和EPU02;中度耐盐种质有ER008、ER014、ER027、ER032、ER037、ER038、ER044、ER045、EE007、EE027、EJ001、EPO02、EPO03和EPO04;敏盐种质有ER028、ER033、ER036、ER039、EE022、EJ003、EL001和EI022。
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| 关 键 词： | 偃麦草属 种质 苗期 耐盐性 评价 |
| 收稿时间： | 1900-01-01; |
A comprehensive evaluation of salt tolerance for germplasm and materials of Elytrigia at the seedling stage |
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| MENG Lin,SHANG Chun-yan,MAO Pei-chun,ZHANG Guo-fang,AN Sha-zhou.A comprehensive evaluation of salt tolerance for germplasm and materials of Elytrigia at the seedling stage[J].Acta Prataculturae Sinica,2009,18(4):67-74. |
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| Authors: | MENG Lin SHANG Chun-yan MAO Pei-chun ZHANG Guo-fang AN Sha-zhou |
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| Institution: | 1.Beijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; 2.College of Pratacultural and Environmental Science, Xinjiang Agricultural University, Key Laboratory of Grassland Resources and Ecology of Xinjiang, Urumqi 830052, China |
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| Abstract: | Simulating salinity stress in a green house was used to study the relative water content(RWC),relative electrical conductivity rate(EC),content of free proline(Pro),K+/Na+,changes of relative growth rate,the salt-tolerant coefficient,the livability and time of salinity injury to death of Elytrigia.Materials of 34 germplasms and 8 species of Elytrigia collected from 21 countries were measured and analyzed at the seedling stage,and the salt tolerances were comprehensively evaluated.Eight indexes were all effe... |
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| Keywords: | Elytrigia germplasm seedling stage salt tolerance evaluation |
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