播期对鄂中北地区不同类型粳稻产量、生育期及温光利用的影响

潘高峰, 汪本福, 陈波, 房振兵, 赵沙沙, 田永宏

Effects of Seeding Date on Yield, Growth Period and Utilization of Temperature and Sunshine of Different Types of Japonica Rice in North Central of Hubei Province

Pan Gaofeng, Wang Benfu, Chen Bo, Fang Zhenbing, Zhao Shasha, Tian Yonghong

表1 播期对不同类型粳稻全生育期温光利用的影响

Table 1 Effects of seeding date on accumulated temperature and sunshine hours and heat utilization rate of different types of japonica rice during growth period

品种类型 Variety type 播期 Seeding date 有效积温Effective accumulated temperature 热量利用率 Heat utilization rate (%) 日照时数Sunshine hour 数值Value (℃) 利用率Utilization rate (%) 数值Value (h) 利用率Utilization rate (%) 早熟中粳 Ⅰ 2252.5a 91.84a 4.4a 854.8a 87.17a EMMJ Ⅱ 2153.8b 87.81b 4.1b 795.5d 81.12d Ⅲ 2107.9c 85.94c 4.0c 802.4c 81.83c Ⅳ 2070.7d 84.43d 3.7d 818.8b 83.50b V 2015.5e 82.27e 2.9e 787.8e 80.34e 中熟中粳 Ⅰ 2283.5a 93.10a 4.0a 876.6a 89.39a MMMJ Ⅱ 2195.2b 89.50b 4.0a 827.4c 84.38c Ⅲ 2128.6c 86.79c 3.5b 821.5d 83.78d Ⅳ 2098.3d 85.55d 3.4c 829.7b 84.61b V 2032.0e 82.85e 3.3d 793.5e 80.92e 迟熟中粳 Ⅰ 2336.9a 95.28a 4.3b 910.7a 92.87a LMJ Ⅱ 2255.9b 91.98b 4.4a 862.3b 87.94b Ⅲ 2179.0c 88.84c 4.2c 847.4d 86.42d Ⅳ 2121.5d 86.50d 3.9e 849.9c 86.67c V 2050.9e 83.62e 4.0d 804.3e 82.02e 籼粳杂交中熟中粳 Ⅰ 2187.6a 89.19a 5.3a 829.2a 84.56a H-MMMJ Ⅱ 2119.3b 86.41b 5.2b 772.8e 78.81e Ⅲ 2097.8c 85.53c 4.8c 793.7d 80.94d Ⅳ 2080.6d 84.83d 4.7d 818.8b 83.50b V 2042.7e 83.28e 4.3e 801.5c 81.74c 籼粳杂交早熟中粳 Ⅰ 2149.1a 87.62a 5.3a 804.3a 82.02a H-EMMJ Ⅱ 2088.9b 85.17b 5.1b 769.9d 78.51d Ⅲ 2065.1c 84.20c 4.9c 779.1c 79.45c Ⅳ 2027.2d 82.65d 4.6d 784.7b 80.02b V 1964.7e 80.10e 4.1e 756.7e 77.17e