| 华北冬小麦拔节期水分胁迫-复水补偿效应研究 |
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| 引用本文： | 刘琳,郝卫平,白清俊,梅旭荣,闫永銮.华北冬小麦拔节期水分胁迫-复水补偿效应研究[J].灌溉排水学报,2011,30(2):37-40. |
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| 作者姓名： | 刘琳 郝卫平 白清俊 梅旭荣 闫永銮 |
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| 作者单位： | 刘琳,白清俊,闫永銮,LIU Lin,BAI Qing-jun,YAN Yong-luan(山东农业大学,水利土木工程学院,山东,泰安,271018);郝卫平,梅旭荣,HAO Wei-ping,MEI Xu-rong(中国农业科学院,农业环境与可持续发展研究所农业部,旱作农业重点实验室,北京,100081) |
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| 基金项目： | 国家自然科学基金项目，国际科技合作项目 |
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| 摘 要： | 以华北地区抗旱性不同的二冬麦品种石家庄8号(抗旱品种)与偃麦20(非抗旱品种)为材料,研究拔节期水分胁迫-复水补偿效应的品种差异及补偿效应对产量及水分利用效率(WUE)的影响.结果表明,在拔节期不同胁迫程度和不同胁迫历时下.石家庄8号水分胁迫一复水之后,各项生理指标均快速补偿,轻度水分胁迫-复水后出现超补偿效应,且出现...
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| 关 键 词： | 冬小麦 水分胁迫 复水 补偿效应 水分利用效率 |
Differential Compensatory Effects of Winter Wheat in Water Stress and Re-watering during Jointing Stage in North China |
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| LIU Lin,HAO Wei-ping,BAI Qing-jun,MEI Xu-rong,YAN Yong-luan.Differential Compensatory Effects of Winter Wheat in Water Stress and Re-watering during Jointing Stage in North China[J].Journal of Irrigation and Drainage,2011,30(2):37-40. |
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| Authors: | LIU Lin HAO Wei-ping BAI Qing-jun MEI Xu-rong YAN Yong-luan |
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| Abstract: | Our objective was to investigate the compensatory effects of water stress and re-watering on varieties,yield and water use efficiency(WUE) in winter wheat cultivars 'Shijiazhuang 8'(drought resistant) and 'Yanmai 20'(drought sensitive) in North China during jointing stage.The results indicated that,the physiological indexes of the water resistant cultivar 'Shijiazhuang 8' could compensate rapidly after re-watering.Compensatory effects or even extra compensatory effects could happen and WUE was higher than that of CK after mild water stress and re-watering.For drought sensitive cultivars 'Yanmai 20',the effects of stress levels and stress time on water consumption,yield and WUE were great.Compensatory effects of 'Yanmai 20' was lower than 'Shijiazhuang 8'.after re-watering.From the compensatory effects of water stress and re-watering,drought resistant cultivars 'Shijiazhuang 8' in North China was under mild water stress during jointing stage,which is beneficial to yield WUE increased. |
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| Keywords: | winter wheat water stress re-watering compensatory effect WUE |
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