摘要： 对不同水处理下的冬小麦形态、生理特性及产量进行了研究。结果表明，在水分胁迫条件下，抗旱性较强的品种产量较高；在水分充足条件下，抗旱性较弱的品种产量较高。耐旱性较强的品种渗透调节能力相对较强。冬小麦对水胁迫的适应性主要通过渗透调节机制来实现。水胁迫导致叶片叶绿素含量降低，耐旱性较强的品种叶绿素含量变化较小。随着水分的减少，冬小麦叶片蔗糖含量呈上升趋势。在水分胁迫下，耐旱性较强的冬小麦品种叶片SOD酶具有较高活性，且随水分胁迫加强提高较快。

关键词: 冬小麦, 水分, 形态, 生理特性, 产量

Abstract: The effects of different water treatments on the configuration, physiological characteristics and yield of winter wheat were studied. The results showed that the yield of the wheat variety with a higher ability of drought-resistance was higher under water stress, while that of the wheat variety with a lower ability of drought-resistance was higher under abundance of water. The osmotic adjusting ability of the strong drought-resistance wheat variety was higher. The adaptability of the winter wheat to water stress was realized by the osmotic adjusting mechanism. The decrease of the chlorophyll content of the wheat leaves was caused by water stress. but the chlorophyll content of the wheat variety which had a higher ability of drought-resistance decreased less. The sucrose content of the wheat leaves tended to increase with the decrease of the quantity of irrigation. The superoxide dismutase of the leaves of winter wheat that had higher ability of drought-resistance had higher activity under water stress, and its activity was enhanced with the intensity of water stress.

Key words: Winter wheat, Water, Configuration, Physiological characteristic, Yield