甘蓝型油菜对华北坝上冷凉环境的适应性

刘晓亚,张立峰,张继宗,石文宾,张培月

Adapt Ability of Brassica napus to Cold Environment in Bashang of North China

Xiaoya Liu,Lifeng Zhang,Jizong Zhang,Wenbin Shi,Peiyue Zhang

表2 不同油菜品种的农艺性状与产量

Table 2 Yield and agronomic characters in different rape varieties

年份 Year 品种 Variety 株高 Plant height (cm) 茎粗 Stem diameter (mm) 单株一次 有效分枝 Primary effective branches per plant 单株 角果数 Pods per plant 单株角 果皮面积 Area of pod peel per plant 单角 粒数 Seeds of pod 千粒重 1000- kernel weight (g) 产量 Yield (kg/hm2) 经济 系数 Economic coefficient 养分生物学效率 Nutrient biological efficiency (kg/kg) N P K 2017 大黄 Dahuang 140.4 18.9 11.8 625.6 2 566.9 14 3.6 2 244.0 0.32 11.16 65.96 18.14 华油杂62 Huayouza 62 141.7 20.1 9.3 326.8 2 816.4 25 4.2 3 456.3 0.28 13.25 65.71 16.60 2018 大黄 Dahuang 153.2 14.9 6.4 573.0 2 351.1 17 3.5 2 634.6 0.32 15.75 77.26 34.22 华油杂62 Huayouza62 139.0 19.9 7.8 395.0 3 404.1 27 3.4 3 234.9 0.30 15.64 86.49 17.92