播期对江西晚稻产量及温光资源利用的影响

张崇华, 段里成, 王尚明, 张清霞, 王成孜, 吴风雨, 杨林

Effects of Sowing Date on Late-Rice Yield and Utilization of Heat-Light Resources in Jiangxi Province

Zhang Chonghua, Duan Licheng, Wang Shangming, Zhang Qingxia, Wang Chengzi, Wu Fengyu, Yang Lin

表3 播期对晚稻产量及其构成因素的影响

Table 3 Effects of sowing date on the yield and its components of late-rice

年份 Year 播期 Sowing date 有效穗数 Effective panicle number (×104/hm2) 穗粒数 Grain number per panicle 结实率 Seed-setting rate (%) 千粒重 1000-grain weight (g) 产量 Yield (t/hm2) 2018 Ⅰ 348.74a 160.6a 74.37a 23.76a 7.92a Ⅱ 345.62a 151.6ab 75.47a 23.95a 7.58ab Ⅲ 342.18ab 137.7c 74.80a 23.57a 6.65c Ⅳ 338.12c 130.8c 69.04b 23.98a 5.86d 2019 Ⅰ 324.37a 159.7a 80.60a 24.16a 8.07a Ⅱ 314.06b 157.3a 81.74a 24.47a 7.91a Ⅲ 310.93b 143.0b 74.83ab 25.01a 6.66b Ⅳ 285.62c 143.7b 63.05c 24.13a 4.99c