播期和种植密度对油菜产量和茎秆抗倒性的影响
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袁圆,汪波,周广生,刘芳,黄俊生,蒯婕
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Effects of Different Sowing Dates and Planting Densities on the Yield and Stem Lodging Resistance of Rapeseed
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YUAN Yuan,WANG Bo,ZHOU GuangSheng,LIU Fang,HUANG JunSheng,KUAI Jie
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表1 2017—2019年油菜生育期及气象数据
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Table 1 Rapeseed growth process and meteorological factor during 2017-2019
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播期
Sowing date | 品种
Variety | 密度
Density | 2017-2018 | 2018-2019 | 生育期
Growth days (d) | 有效积温
Effective accumulated temperature (℃) | 降雨量
Rainfall
(mm) | 生育期
Growth days (d) | 有效积温
Effective accumulated temperature (℃) | 降雨量
Rainfall
(mm) | | T1 | 华油杂62
HZ 62 | D1 | 218 | 2772.2 | 207.3 | 218 | 2669.9 | 492.8 | | D2 | 216 | 2727.5 | 207.3 | 216 | 2623.5 | 492.8 | | D3 | 214 | 2678.6 | 206.3 | 214 | 2581.4 | 492.8 | | D4 | 213 | 2653.4 | 206.3 | 213 | 2564.0 | 492.8 | 沣油520
FY 520 | D1 | 210 | 2586.1 | 206.1 | 210 | 2519.2 | 449.5 | | D2 | 208 | 2548.0 | 206.1 | 208 | 2478.0 | 449.5 | | D3 | 206 | 2516.1 | 199.3 | 206 | 2433.3 | 449.5 | | D4 | 205 | 2494.2 | 181.8 | 205 | 2415.4 | 448.4 | | T2 | 华油杂62
HZ 62 | D1 | 191 | 2318.3 | 183.0 | 193 | 2010.4 | 475.9 | | D2 | 189 | 2275.3 | 180.0 | 192 | 1974.8 | 453.1 | | D3 | 188 | 2254.8 | 180.0 | 191 | 1949.8 | 453.1 | | D4 | 187 | 2234.6 | 180.0 | 190 | 1927.4 | 453.1 | 沣油520
FY 520 | D1 | 185 | 2195.1 | 144.2 | 187 | 1995.8 | 474.7 | | D2 | 184 | 2172.7 | 144.2 | 186 | 1955.9 | 474.7 | | D3 | 183 | 2150.4 | 144.2 | 185 | 1933.3 | 474.7 | | D4 | 182 | 2126.3 | 144.2 | 184 | 1909.2 | 474.7 |
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