基于品种生育期有效积温确定夏玉米适宜播期
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陈静,任佰朝,赵斌,刘鹏,杨今胜,张吉旺
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Determination on Suitable Sowing Date of Summer Maize Hybrids Based on Effective Accumulated Temperature in Growth Period
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CHEN Jing,REN BaiZhao,ZHAO Bin,LIU Peng,YANG JinSheng,ZHANG JiWang
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表3 播期对不同熟期夏玉米生育进程的影响
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Table 3 Effects of sowing date on growth procession of summer maize hybrids differing in maturities
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年份
Year | 品种
Hybrid | 播期
Sowing date
(M-D) | 播种—出苗
SD-VE
(d) | 出苗—拔节
VE-V6
(d) | 拔节—抽雄
V6-VT
(d) | 抽雄—吐丝
VT-R1
(d) | 吐丝—成熟
R1-R6
(d) | 全生育期天数
Total growth
period (d) | | 2018 | JNK728 | 06-05 | 5 | 19 | 25 | 3 | 48 | 100 | | 06-15 | 5 | 17 | 24 | 1 | 55 | 102 | | 06-25 | 4 | 15 | 24 | 2 | 63 | 108 | | DH618 | 06-05 | 5 | 19 | 25 | 0 | 53 | 102 | | 06-15 | 5 | 17 | 26 | 0 | 54 | 102 | | 06-25 | 4 | 15 | 22 | 2 | 62 | 105 | | ZD958 | 06-05 | 5 | 19 | 28 | 2 | 59 | 113 | | 06-15 | 5 | 17 | 27 | 1 | 69 | 119 | | 06-25 | 4 | 15 | 26 | 2 | 66 | 113 | | DH605 | 06-05 | 5 | 19 | 27 | 2 | 59 | 112 | | 06-15 | 5 | 17 | 26 | 0 | 62 | 110 | | 06-25 | 4 | 15 | 27 | 1 | 62 | 109 | | 2019 | JNK728 | 06-05 | 5 | 16 | 28 | 3 | 54 | 106 | | 06-15 | 5 | 17 | 26 | 1 | 56 | 105 | | 06-25 | 4 | 17 | 26 | 2 | 56 | 105 | | DH618 | 06-05 | 5 | 16 | 28 | 1 | 56 | 106 | | 06-15 | 5 | 16 | 26 | 1 | 58 | 106 | | 06-25 | 4 | 16 | 26 | 1 | 59 | 106 | | ZD958 | 06-05 | 5 | 18 | 29 | 2 | 59 | 113 | | 06-15 | 5 | 18 | 26 | 1 | 69 | 119 | | 06-25 | 4 | 18 | 27 | 1 | 73 | 123 | | XY335 | 06-05 | 5 | 21 | 28 | 1 | 54 | 109 | | 06-15 | 5 | 18 | 29 | 1 | 59 | 112 | | 06-25 | 4 | 18 | 30 | 0 | 57 | 109 |
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