北方强冬性甘蓝型冬油菜品种(系)抗寒性评价
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蒲媛媛,赵玉红,武军艳,刘丽君,白静,马骊,牛早霞,金姣姣,方彦,李学才,孙万仓
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Comprehensive Assessment on Cold Tolerance of the Strong Winter Brassica napus L. Cultivated in Northern China
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YuanYuan PU,YuHong ZHAO,JunYan WU,LiJun LIU,Jing BAI,Li MA,ZaoXia NIU,JiaoJiao JIN,Yan FANG,XueCai LI,WanCang SUN
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表2 种植区主要气候因子
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Table 2 Major climatic and environmental factors in the planting regions
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环境因子 Environment factor | 天水 Tianshui | 上川 Shangchuan | 兰州 Lanzhou | 经度 Longitude | 105°69′ E | 103°40′ E | 103°73′ E | 纬度 Latitude | 34°60′ N | 36°03′ N | 36°73′ N | 海拔 Altitude (m) | 1084—1650 | 2150 | 1517 | 年平均气温 Annual average temperature (℃) | 11.5 | 6.5 | 10.3 | 最冷月平均最低气温 Lowest temperature in the coldest month (℃) | -2.0 | -14.6 | -5.0 | 极端气温 Extreme low temperature (℃) | -14.7 | -26.5 | -16.0 | 无霜期 Free frost days (d) | 155 | 142 | 180 | 平均降雨量 Precipitation (mm) | 491 | 175 | 327 |
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