| 抗旱性不同的冬小麦幼苗对渗透胁迫的生理效应 |
| |
| 引用本文： | 李德全,邹琦,程炳嵩.抗旱性不同的冬小麦幼苗对渗透胁迫的生理效应[J].植物学报,1992,9(3):35-39. |
| |
| 作者姓名： | 李德全 邹琦 程炳嵩 |
| |
| 作者单位： | (山东农业大学， 泰安 271018） |
| |
| 摘 要： | 抗旱性不同的冬小麦幼苗在渗进胁迫下叶片相对透性、Pro含量和在总游离氨基酸中的Pro比例均增加，但品种间变化幅度有明显差别。在严重胁迫下，抗旱性弱的品种济南13，烟农15和鲁麦5号的叶片相对透性增加大于抗旱性强的品种昌乐5号，秦麦3号和山农587；而Pro含量和在总游离氨基酸中Pro比例的增加小于抗旱性强的品种、叶片Pro累积与RWC呈显著负相关。
|
| 关 键 词： | 渗透胁迫 相对透性 游离脯氨酸 冬小麦 缩写 Ψw：水势 Ψ2: |
Physiological Responses of Winter Wheat Seedlings with Different Drought Resistance to Osmotic Stress |
| |
| Li De-quan,Zou Qi and Cheng Bing-song.Physiological Responses of Winter Wheat Seedlings with Different Drought Resistance to Osmotic Stress[J].Bulletin of Botany,1992,9(3):35-39. |
| |
| Authors: | Li De-quan Zou Qi and Cheng Bing-song |
| |
| Institution: | (Shandong Agricultural University, Taian 271018) |
| |
| Abstract: | The experimental result showed that physiological responses of winter wheat seedlings with different drought resistance to osmotic stress showed a similar tendency, for example, the increase of relative permeability, Pro and the percentage of Pro in total amino acids. There was a considerable difference in the range of changes among the cultivars. Under severe osmotic stress, the increase of relative permeability of the cultivars with weak drought resistance (Jinan NO.13, Yannong NO.15 and Lumai NO. 5) were more than that of the cultivars with strong drought resistance(Qinmai NO.3, Changle NO.5 and Shannong 587); but the increase of Pro and the percentage of Pro in total amino acids of the cultivars with weak drought resistance were less than that of the cultivars with strong drought resistance. There was highly significant negative correlation with the RWC and Pro accumulation. |
| |
| Keywords: | , |
|
| 点击此处可从《植物学报》浏览原始摘要信息 |
| 点击此处可从《植物学报》下载免费的PDF全文 |
|
