淮北地区优质食味粳稻温光适应性和最佳播种期

许方甫,卞金龙,韩超,陈志青,刘国栋,邢志鹏,胡雅杰,魏海燕,张洪程

Temperature and Light Adaptability of High-Quality Japonica Rice and Optimum Seeding Date in Huaibei Region

XU FangFu,BIAN JinLong,HAN Chao,CHEN ZhiQing,LIU GuoDong,XING ZhiPeng,HU YaJie,WEI HaiYan,ZHANG HongCheng

表4 不同播期处理下主要生育阶段天数的差异

Table 4 Number of days in the main fertility stage difference between the two fertility types of rice varieties at seven sowing dates in 2017 and 2018 (d)

类型 Type 品种 Variety 处理 Treatment 播种-拔节 SD-SE 拔节-抽穗 SE-HE 抽穗-成熟 HE-MA 全生育期 SD-MA 2017 2018 2017 2018 2017 2018 2017 2018 中熟中粳 MMMJ 南粳2728 Nanjing2728 S1 67 69 34 33 57 54 158 156 S2 65 67 33 32 58 54 156 153 S3 63 65 32 31 59 55 154 151 S4 61 63 31 29 59 56 151 148 S5 58 60 29 28 60 57 147 145 S6 55 57 27 26 64 57 146 140 S7 51 53 26 25 62 60 139 138 均值Mean 60 62 30 29 60 56 150 147 南粳505 Nanjing505 S1 67 69 35 34 57 55 159 158 S2 65 67 34 33 57 55 156 155 S3 63 65 33 32 57 55 153 152 S4 61 63 31 30 58 56 150 149 S5 58 60 30 29 58 56 146 145 S6 55 57 28 27 63 57 146 141 S7 51 53 27 26 61 59 139 138 均值Mean 60 62 31 30 59 56 150 148 迟熟中粳 LMMJ 南粳9108 Nanjing9108 S1 70 72 36 35 58 56 164 163 S2 68 70 36 34 58 56 162 160 S3 66 68 35 33 58 56 159 157 S4 64 66 34 32 58 56 156 154 S5 60 62 34 32 59 58 153 152 S6 59 61 30 28 57 56 146 145 S7 55 57 29 27 55 54 139 138 均值Mean 63 65 33 32 58 56 154 153 福粳1606 Fujing1606 S1 74 76 37 35 57 56 168 167 S2 72 73 37 34 57 57 166 164 S3 70 72 36 32 57 57 163 161 S4 68 69 34 31 58 59 160 159 S5 65 66 32 30 56 56 153 152 S6 62 64 30 27 54 54 146 145 S7 58 61 29 26 52 52 139 139 均值Mean 67 69 34 31 56 56 156 155