长江下游稻区不同类型双季晚粳稻产量与生育特性差异

殷敏,刘少文,褚光,徐春梅,王丹英,章秀福,陈松

Differences in Yield and Growth Traits of Different Japonica Varieties in the Double Cropping Late Season in the Lower Reaches of the Yangtze River

Min YIN,ShaoWen LIU,Guang CHU,ChunMei XU,DanYing WANG,XiuFu ZHANG,Song CHEN

表3 2017—2018年不同类型晚稻产量构成差异

Table 3 Differences in yield components of different types of late rice from 2017 to 2018

年份 Year 类型 Type 有效穗数 (panicles/m2) 每穗粒数 Grains per panicle 结实率 Grain setting (%) 千粒重 1000-grain weight (g) 库容 Sink (×103·m-2) 2017 IR 303.8±16.7a 169.4±23.3b 60.7±10.6b 22.5±1.2b 51.2±5.4b IJR 269.5±30.8b 121.4±18.2c 77.2±5.1a 26.9±1.6a 32.7±6.3d HJR 282.6±30.6ab 137.4±7.8c 72.1±8.2a 27.5±2.5a 38.7±2.4c IJHR 224.4±15.0c 263.0±32.5a 63.7±6.6b 22.9±1.3b 58.6±4.2a 2018 IR 306.3±39.7a 181.7±29.1b 67.0±5.7b 23.0±0.8c 55.0±6.9b IJR 310.3±20.4a 133.3±15.5c 75.0±5.8a 26.0±1.3b 41.2±3.4d HJR 299.2±15.4a 166.4±8.1b 65.7±8.3b 27.9±2.3a 49.7±0.9c IJHR 218.2±14.6b 316.0±32.8a 65.2±7.0b 22.9±0.9c 68.6±3.4a ANOVA 品种类型 Type (T) 41.65** 195.52** 15.97** 49.54** 126.37** 年份 Year (Y) 5.15* 23.52** 0.02ns 0.00ns 52.96** T×Y 4.10** 3,54* 2.36ns 1.11ns 1.82ns