| 渗透胁迫对不同供钾水平烤烟叶片抗旱生理指标的影响 |
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| 引用本文： | E-mail:sshixu@.com。.渗透胁迫对不同供钾水平烤烟叶片抗旱生理指标的影响[J].中国农学通报,2006,22(5):216-216. |
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| 作者姓名： | E-mail:sshixu@.com。 |
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| 作者单位： | 1. 河南农业大学农学院,河南,郑州,450002;长沙卷烟厂博士后工作站,湖南,长沙,410007
2. 河南农业大学农学院,河南,郑州,450002 |
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| 基金项目： | 国家烟草专卖局资助项目 |
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| 摘 要： | （1河南农业大学农学院，河南郑州 450002；2长沙卷烟厂博士后工作站，湖南长沙 410007）
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| 关 键 词： | 冬小麦 冬小麦 秩次分析法 区域试验 品种稳定性 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2005-12-052005-12-08 |
Effect of Osmotic Stress on Physiological Indices of Drought Resistance of Flue-cured Tobacco Leaves under Different Potassium Supplying |
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| S.Effect of Osmotic Stress on Physiological Indices of Drought Resistance of Flue-cured Tobacco Leaves under Different Potassium Supplying[J].Chinese Agricultural Science Bulletin,2006,22(5):216-216. |
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| Authors: | S |
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| Institution: | 1 Agronomy College of Henan Agricultural University, Zhengzhou 450002; 2 Post-doctoral Workstation of Changsha Cigarette Factory, Changsha 410007 |
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| Abstract: | A water-culture experiment was employed to study the effect of osmotic stress on contents of proline (PRO), soluble sugar (SS) and malondaldehyde (MDA) in flue-cured tobacco leaves under different potassium supplying. The results showed that the contents of PRO, SS and MDA in the leaves of different potassium supplying treatment increased significantly under osmotic stress, and the peak value appeared at 24h and then declined. The changes of these indices were almost the same between the two osmotic stress treatments, but the peak value was obviously higher at the osmotic potential of -0.2MPa than that of -0.4MPa. Under osmotic stress, significant accumulation of PRO and SS in tobacco leaves was observed and the notable decrease of MDA content was also found with the increasing of potassium supply, which suggested that the drought resistance of tobacco plant was improved. |
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| Keywords: | Flue-cured tobacco Osmotic stress Potassium Physiological index |
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