摘要
通过田间试验,研究了亏缺灌溉对冬小麦相关水分生理指标、籽粒产量以及水分利用效率(WUE)等的影响。结果表明,T2处理的叶片离体失水速率最大,T3处理的气孔导度和叶水势等叶片水分生理指标均高于T1和T2处理。2个生长季中,T3处理的籽粒产量和WUE均显著高于T1和T2处理。可见,在我国北方冬小麦整个生育期间总灌溉量为120mm条件下,以拔节期和抽穗期各灌溉60mm为宜。
In order to investigate the optimal water-saving and high-efficient irrigation pattern of winter wheat in North China, effects of deficit irrigation on leaf water physiological characteristics, grain yield, and water use efficiency (WUE) of winter wheat in North China were studied based on field experiments. The results showed that the leaf vitro rate of water loss in T2 treatment was the largest, and stomatal con- ductance and leaf water potential in T3 treatment were higher than those in T1 and T2 treatments. In the two growing seasons, grain yield and WUE in T3 treatment were significantly higher than those in T1 and T2 treatments. It is suggested that winter wheat should be irrigated 60 mm at jointing and heading stages of winter wheat in North China respectively.
出处
《灌溉排水学报》
CSCD
北大核心
2013年第6期130-132,共3页
Journal of Irrigation and Drainage
基金
国家自然科学基金项目(31101114)
山东省科技发展计划项目(2011GNC21101)
山东省优秀中青年科学家科研奖励基金项目(BS2009NY008)
"十二五"国家科技支撑计划项目(2011BAD21B0601)
关键词
亏缺灌溉
冬小麦
水分生理
产量
水分利用效率
deficit irrigation
winter wheat
water physiological
grain yield
water use efficiency