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2 播期对不同类型粳稻产量的影响

Table 2 Effects of seeding date on grain yield of different types of japonica rice ×10³kg/hm²

品种类型 Variety type	播期Seeding date					平均值 Average	变异系数 CV (%)
品种类型 Variety type	Ⅰ	Ⅱ	Ⅲ	Ⅳ	V	平均值 Average	变异系数 CV (%)
早熟中粳EMMJ	9.97a	8.75b	8.39c	7.60d	5.93e	8.13d	18.41
中熟中粳MMMJ	9.12a	8.83b	7.41c	7.15d	6.70e	7.84e	13.64
迟熟中粳LMJ	10.09a	10.02b	9.06c	8.21d	8.12e	9.10c	10.39
籼粳杂交中熟中粳H-MMMJ	11.53a	10.92b	10.15c	9.83d	8.85e	10.26a	10.03
籼粳杂交早熟中粳H-EMMJ	11.45a	10.62b	10.04c	9.36d	8.01e	9.90b	13.17
平均值Average	10.43a	9.83b	9.01c	8.43d	7.52e
变异系数CV (%)	9.93	10.19	12.78	13.53	15.69