基于播期的温度变化对豫南粳稻播始历期和灌浆成熟期的影响

段斌,方玲,何世界,李慧龙,彭波,宋晓华,胡杨

Effects of the Temperature Change Based on Sowing Date on the Period from Seeding to Heading and the Filling and Ripening Stage of Japonica Rice in Southern Henan Province

Bin Duan,Ling Fang,Shijie He,Huilong Li,Bo Peng,Xiaohua Song,Yang Hu

表3 播始历期和灌浆成熟期随播期变化趋势

Table 3 The trend of the stages from seeding to heading and filling and ripening stage with the change of sowing date

品种 Cultivar 线性回归方程Linear regression equation R 播期效应系数Sowing date effect coefficient 播始历期 Seeding to heading stage 灌浆成熟期 Filling and ripening stage 播始历期 Seeding to heading stage 灌浆成熟期 Filling and ripening stage 播始历期 Seeding to heading stage 灌浆成熟期 Filling and ripening stage 9优418 9 you 418 y=-2.703x+108.3 y=1.875x+39.0 -0.9910** 0.9859** 0.4156 0.4456 南粳44 Nanjing 44 y=-2.518x+112.1 y=1.790x+38.8 -0.9910** 0.9365** 0.3391 0.5095 宁粳3号Ningjing 3 y=-2.675x+112.7 y=1.663x+40.3 -0.9920** 0.9061** 0.4059 0.4535 郑稻18 Zhengdao 18 y=-2.381x+101.4 y=1.518x+44.4 -0.9900** 0.9581** 0.3656 0.3891 隆优1875 Longyou 1875 y=-1.618x+99.1 y=2.869x+42.4 -0.9894** 0.9849** 0.2383 0.5702