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1 不同播期处理播始历期和灌浆成熟期天数

Table 1 Days of seeding to heading and filling and ripening stage of different sowing date treatments d

生育时期 Growth stage 播期 Sowing date 9优418 9 you 418 南粳44 Nanjing 44 宁粳3号 Ningjing 3 郑稻18 Zhengdao 18 隆优1875 Longyou 1875 2011 2012 2011 2012 2011 2012 2011 2012 2011 2012 播始历期 Ⅰ 111 103 111 112 111 112 100 98 98 96 Seeding to heading stage Ⅱ 106 100 106 108 108 107 98 94 99 93 Ⅲ 103 98 103 104 104 104 99 92 99 91 Ⅳ 98 96 102 102 103 102 96 89 96 91 Ⅴ 96 93 99 98 100 98 93 86 94 88 Ⅵ 93 89 95 96 95 96 88 84 89 87 Ⅶ 89 87 92 98 92 94 84 85 87 87 Ⅷ 88 86 91 93 91 91 83 81 88 85 Ⅸ 85 82 90 89 89 88 80 77 85 84 Ⅹ 84 83 88 88 89 87 80 79 84 83 变异系数CV (%) 9.6 8.0 7.9 7.9 8.2 8.5 8.9 7.8 6.5 4.7 变异系数2年平均(%) CV average of two years 8.8 7.9 8.4 8.4 5.6 灌浆成熟期 Ⅰ 41 42 46 38 48 38 48 46 44 48 Filling and ripening stage Ⅱ 43 43 49 39 47 40 50 47 46 48 Ⅲ 43 47 47 43 51 43 48 50 51 51 Ⅳ 47 46 49 42 52 42 46 54 53 51 Ⅴ 48 47 50 42 52 42 47 55 61 51 Ⅵ 53 47 51 41 55 42 51 53 72 52 Ⅶ 58 46 58 40 59 41 54 55 77 53 Ⅷ 60 44 61 45 64 42 56 54 77 53 Ⅸ 67 47 65 48 67 47 59 57 82 54 Ⅹ 70 48 71 48 69 48 67 58 83 56 变异系数CV (%) 19.5 4.4 15.6 8.2 14.0 7.0 12.5 7.6 23.7 4.8 变异系数2年平均(%) CV average of two years 12.0 11.9 10.5 10.1 14.3