干湿交替灌溉对籼粳杂交稻产量与水分利用效率的影响及其生理基础

褚光,徐冉,陈松,徐春梅,王丹英,章秀福

Effects of Alternate Wetting and Soil Drying on the Grain Yield and Water Use Efficiency of Indica-Japonica Hybrid Rice and Its Physiological Bases

CHU Guang,XU Ran,CHEN Song,XU ChunMei,WANG DanYing,ZHANG XiuFu

表6 不同灌溉模式对灌浆期水稻根系氧化力与剑叶净光合速率的影响

Table 6 ROA and flag leaf photosynthetic rate of rice after heading under different irrigation managements

品种 Cultivar 处理 Treatment 根系氧化力 Root oxidation activity (μg α-NA·g-1 DW·h-1 ) 剑叶净光合速率 Flag leaf photosynthetic rate (µmol·m-2·s-1 ) D1 W1 D2 W2 D1 W1 D2 W2 甬优1540 YY-1540 CI 560a 559b 418a 414b 24.6a 24.3b 21.8a 21.3b AWD 553a 637a 409a 498a 24.3a 26.7a 21.5a 24.3a 春优927 CY-927 CI 569a 563b 420a 418b 24.9a 24.5b 22.1a 21.6b AWD 557a 629a 415a 478a 24.2a 26.5a 21.9a 24.8a 常优5号 CY-5 CI 502b 490c 343b 334c 24.5a 24.3b 18.4b 18.1c AWD 407c 478c 254c 292d 20.7b 23.9b 13.8c 15.5d 嘉优5号 JY-5 CI 496b 486c 358b 360c 24.6a 24.1b 18.1b 18.4c AWD 415c 481c 269c 287d 21.0b 24.0b 13.9c 15.2d 方差分析 ANOVA 品种 Cultivar (C) ** ** ** ** ** ** ** ** 处理 Treatment (T) ** ** ** ** ** ** ** ** 品种×处理 C×T * ** ** * ** * * *