| 抗旱性不同的冬小麦幼苗对渗透胁迫的生理反应 |
| |
| 引用本文： | 李德全,邹琦.抗旱性不同的冬小麦幼苗对渗透胁迫的生理反应[J].植物学通报,1992,9(3):35-39. |
| |
| 作者姓名： | 李德全 邹琦 |
| |
| 作者单位： | 山东农业大学 泰安271018
(李德全，邹琦)，山东农业大学 泰安271018(程炳嵩) |
| |
| 摘 要： | 抗旱性不同的冬小麦幼苗在渗透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 ψ_w∶水势 ψ_n∶渗透势 RWC∶相对含水量 Pro∶游离脯氨酸 |
PHYSIOLOGICAL RESPONSES OF WINTER WHEAT SEEDLINGS WITH DIFFERENT DROUGHT RESISTANCE TO OSMOTIC STRESS |
| |
| Li De-quan Zou Qi Cheng Bing-song.PHYSIOLOGICAL RESPONSES OF WINTER WHEAT SEEDLINGS WITH DIFFERENT DROUGHT RESISTANCE TO OSMOTIC STRESS[J].Chinese Bulletin of Botany,1992,9(3):35-39. |
| |
| Authors: | Li De-quan Zou Qi Cheng Bing-song |
| |
| Abstract: | The experimental result showed that physiological re-
sponses 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.5and
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: | Osmotic stress Relative permeability Free proline Winter wheat |
| 本文献已被 CNKI 维普 等数据库收录！ |
