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6 不同播期处理下主要生育阶段水稻积温的差异
Table 6 Accumulated temperature in the main fertility stage difference between the two fertility types of rice varieties at seven sowing dates in 2017 and 2018 (℃)
类型
Type
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
S1 1661.5a 1689.9b 984.2a 979.6a 1233.4a 1185.6a 3879.1a 3855.1a
S2 1654.0c 1689.5d 945.3b 933.2b 1196.4b 1140.1b 3795.7b 3762.8b
S3 1657.8b 1697.6a 897.4c 888.2c 1148.7c 1099.5c 3703.9c 3685.3c
S4 1626d 1689.8c 835.0d 828.4d 1126.1d 1078.9d 3587.1d 3597.1d
S5 1581.8e 1634.5e 774.2e 788.9e 1107.9de 1048.3e 3463.9e 3471.7e
S6 1533.7f 1581.2f 701.4f 715.0f 1145.5c 1027.1f 3380.6f 3323.3f
S7 1433.7g 1501.2g 660.8g 674.7g 1102.8e 1039.6ef 3197.3g 3215.5g
均值Mean 1592.6 1640.5 828.3 829.7 1151.5 1088.4 3572.5 3558.7
迟熟中粳
LMMJ
S1 1808.4a 1839.3a 1026.a 998.0a 1155.9a 1130.7a 3991.2a 3968a
S2 1812.1a 1821.9a 988.9a 958.0a 1105.4b 1091.5a 3906.4b 3871.4b
S3 1800.1a 1841.3a 929.3b 906.6b 1076.2c 1046.5b 3805.6c 3794.4c
S4 1768.6a 1822.6a 866.1c 860.1c 1045.2d 1018.6bc 3679.9d 3701.3d
S5 1710.1b 1757.5b 822.8c 819.8c 1011.9e 984.3c 3544.8e 3561.6e
S6 1685.2b 1739.7b 728.9d 703.9d 966.5f 939.8d 3380.6f 3383.4f
S7 1580.3c 1669.9c 694.8d 666.2d 922.2g 893.6e 3197.3g 3229.7g
均值Mean 1737.8 1784.6 865.4 844.7 1040.5 1015.0 3643.7 3644.3
年度(Y) ** NS ** NS
类型(T) ** ** ** **
播期(S) ** ** ** **
年度×类型(Y×T) NS NS ** NS
年度×播期(Y×S) NS NS NS *
类型×播期(T×S) NS NS ** **
年度×类型×播期(Y×T×S) NS NS NS NS