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3 不同灌溉模式对水稻产量构成因素的影响

Table 3 Grain yield and its yield components under different irrigation managements

品种 Cultivar 处理 Treatment 稻谷产量 Grain yield (t·hm-2) 穗数 Number of panicles (×104 hm-2) 每穗粒数 Spikelets per panicle 总颖花量 Total spikelets (×103 m-2) 结实率 Filled grains (%) 千粒重 1000-grain weight (g) 甬优1540 YY-1540 CI 11.5a 202c 326a 65.7a 79.2c 23.0c AWD 11.4a 198c 304b 59.9b 84.5b 23.3c 春优927 CY-927 CI 11.6a 189d 311b 58.8b 84.2b 24.7b AWD 11.5a 186d 287c 53.2c 89.6a 25.0b 常优5号 CY-5 CI 10.1b 251a 186e 46.7d 84.4b 26.8a AWD 8.86c 240b 169f 40.4e 85.3b 26.8a 嘉优5号 JY-5 CI 9.82b 248a 198d 48.9d 80.7c 25.8b AWD 8.56c 235b 181e 42.3e 81.9c 25.9b 方差分析 ANOVA 品种 Cultivar (C) ** ** ** ** ** ** 处理 Treatment (T) ** ** ** ** ** NS 品种×处理 C×T ** * * * ** *