多生育期不同水分胁迫耦合对水稻产量及水分生产率的影响  

Effects of Water Stress Coupling in Different Growth Stage on Rice Yield and Water Productivity

作　　者：迟道才[1] 佟延旭[1] 陈涛涛[1] 郑俊林[1] 陈伟[2] 邰恩博[2] 

机构地区：[1]沈阳农业大学水利学院,沈阳110161 [2]辽宁省水利水电科学研究院,沈阳110003

出　　处：《沈阳农业大学学报》2016年第1期71-77,共7页Journal of Shenyang Agricultural University

基　　金：国家公益性行业(农业)科研专项项目(201303125);高等学校博士学科点专项科研基金联合资助项目(20112103110007);辽宁省优秀人才支持计划项目(2012);辽宁省特聘教授基金项目(2013)

摘　　要：为了探究多生育期连续控水对水稻的影响,挖掘水稻节水生产的潜能,以水稻品种"沈农9765"为试验材料,采用裂-裂区试验设计,利用测筒栽培条件,研究分蘖期[淹灌(T1)、轻控(T2)、重控(T3)]、拔节孕穗+抽穗开花期﹝淹灌(J1)、轻控(J2)﹞、乳熟期﹝淹灌(M1)、轻控(M2)、重控(M3)﹞及多生育期不同水分胁迫对水稻产量及水分生产率的影响。结果表明:T、J的主效应及T*J的交互效应均显著影响水稻产量,与T2相比,T1、T3产量分别减少5.65%和16.27%。与J1相比,J2产量增长2.9%,且T2J2的组合能极显著提高水稻产量,M对产量影响不显著,M2产量稍高于M1、M3;有效穗数、吸氮量、氮肥偏生产力与产量均呈极显著正相关关系;T、J、M的主效应及T*J、T*M的交互效应均对水分生产率具有显著影响,T2J2、T2M2、T2M3组合的灌溉模式可以极显著提高水分生产率,与T2相比T1、T3水分生产率分别降低16.35%、9.13%,与J1相比J2水分生产率提高10.00%,M2、M3水分生产率均极显著高于M1,M2水分生产率较高于M3。说明T2J2M2组合的灌溉模式能够显著提高水稻产量和水分生产率,可作为水稻节水高产管理的一种参考模式。In order to investigate the effect of multi growth stage continuous water control on rice and excavate the potential of rice water-saving production, with the rice variety 'Shennong9765' as experimental material, pot experiment was conducted by means of the split-split plot design. The effects of different growth stage water stress on rice yield and water productivity were studied under the condition of tillering stage flood irrigation(T1), mild water stress(T2), severe water stress(T3), jointing+heading flood irrigation(J1), mild water stress(J2), milk maturity stage flood irrigation(M1), mild water stress(M2), severe water stress(M3). The main effect of T, J and the interaction effect between T and J on rice yield were significant. Compared with T1, the yield of T2 and T3 decreased by 5.65% and 16.27%, respectively. Compared with J1, the yield of J2 increased by 2.9%. The combination of T2 and J2 could improve the yield significantly. Water stress at milk maturity stage had little effect on yield.The yield of M2 was higher than that of M1 and M3. There were positive correlations between the effective panicles,N uptake,nitrogen partial factor productivity and yield.The main effect of T,J and M and the interaction effect of the combination of T and J, T and M both had significant influence on water productivity. The combination of irrigation mode T2J2,T2M2 and T2M3 could improve the water productivity significantly. Compared with T2, the water productivity of T1 and T3 decreased by 16.35% and 9.13%, respectively. Compared with J1, the water productivity of J2 increased by 10.00%. The water productivity of M2 and M3 was significant higher than that of M1, and the water productivity of M2 was higher than that of M3. T2J2M2 irrigation model could improve the yield and water productivity significantly, and the irrigation mode could be used as a reference mode for rice water saving and high yield.

关 键 词：水稻 连续控水 灌溉模式 产量 水分生产率 相关关系 

分 类 号：S274[农业科学—农业水土工程] S511[农业科学—农业工程]