| 披碱草和野大麦及其BC1F2代不同株系苗期耐盐性研究 |
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| 引用本文： | 李珍,李造哲,于卓. 披碱草和野大麦及其BC1F2代不同株系苗期耐盐性研究[J]. 中国草地学报, 2006, 28(2): 17-22 |
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| 作者姓名： | 李珍 李造哲 于卓 |
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| 作者单位： | 1. 内蒙古农业大学农学院,内蒙古,呼和浩特,010019
2. 内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010019 |
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| 摘 要： | 测定了在盐胁迫下亲本披碱草和野大麦及其BC1F2代不同株系幼苗的相对含水量、细胞膜透性、游离脯氨酸含量等生理生化指标。结果表明，盐胁迫下披碱草和野大麦及其BC1F2代各株系幼苗的组织相对含水量下降、游离脯氨酸含量增高、质膜透性增大。亲本披碱草和野大麦及其BC1F2代不同株系间存在差异。综合评价得出其耐盐性排序为：野大麦〉Y1F2-5〉Y1F2-3-Y1F2-1〉P1F2-6〉Y1F2-6-Y1F29〉Y1F2-2〉Y1F2-8〉P1F2-7〉披碱草〉Y1F2-7。
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| 关 键 词： | 披碱草 野大麦 BC1F2代 苗期 耐盐性 |
| 文章编号： | 1673-5021（2006）02-0017-06 |
| 收稿时间： | 2005-08-10 |
| 修稿时间： | 2005-08-102005-12-04 |
Studies on the Salt Tolerance of Elymus dahuricus Hordeum brevisubulatum and Their BC1F2 Lines at Seedling Stage |
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| LI Zhen,LI Zao-zhe,YU Zhuo. Studies on the Salt Tolerance of Elymus dahuricus Hordeum brevisubulatum and Their BC1F2 Lines at Seedling Stage[J]. Chinese Journal of Grassland, 2006, 28(2): 17-22 |
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| Authors: | LI Zhen LI Zao-zhe YU Zhuo |
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| Affiliation: | 1. College of Agronomy, Inner Mongolia Agricultural University, Hohhot 010019, China; 2. College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Hohhot 010019 ,China |
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| Abstract: | The physiological and biochemical indices,such as relative water content,cell membrane permeability,free proline etc.,were determined in leaves of Elymus dahuricus,Hordeum brevisubulatum and their BC_1F_2 lines at seedling stage under salt stress.The results showed that the relative water content of Elymus dahuricus,Hordeum brevisubulatum and their BC_1F_2 lines at seedling stage was decreased under salt stress,but free proline and cell membrane permeability were increased,there were differences among Elymus dahuricus,Hordeum brevisubulatum and their BC_1F_2 lines.Based on the comprehensive evaluation,the order of salt tolerance was as follows: Hordeum brevisubulatum>Y_1F_2-5>Y_1F_23=Y_1F_2-1>P_1F_2-6>Y_1F_2-6=Y_1F_2-9>Y_1F_2-2>Y_1F_2-8>P_1F_2-7>Elymus dahuricus>Y_1F_2-7. |
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| Keywords: | Elymus dahuricus Hordeum brevisubulatum BC1 F2 Seedlings Salt tolerance |
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