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研究了甘蓝型春性、半冬性和冬性油菜（ＢｒａｓｓｉｃａｎａｐｕｓＬ．）春化时间，不同设备条件和不同生长阶段的春化效果，以及人工春化技术的利用，结果表明春性油菜的开花株率不受春化处理时间的影响，半冬性和冬性油菜的开花株率与春化处理时间有关．半冬性和冬性油菜的萌芽种子在春化室内通过春化阶段，分别需时２０ｄ和４５ｄ；冬性油菜在冰箱冷藏室通过春化阶段需时５０ｄ；三叶期冬油菜通过春化阶段需时３５ｄ．冬油菜在春化室的春化效果比冰箱冷藏室的效果好．适当延长春化时间能提高春化效果。延长每天光照时间能加快油菜的生育进程．利用冰箱冷藏室和生长室可以在上海当地完成半冬性和冬性油菜的春化和夏繁工作。
The vernalization time of Brassica napus, Brassicanapus L., vernalization effect of different plant conditions and different growth stages of Brassica napus and the utilization of artificial vernalization technology were studied. The results showed that the flowering plants of Brassica napus The rate was not influenced by the vernalization treatment time, but the flowering rate of semi-winter and winter canola was related to the vernalization time. Semi-winter and winter rape germinating seeds in the vernalization room through the vernalization stage, respectively, 20d and 45d; winter rape in the refrigerator through the vernalization stage takes 50d; three-leaf stage winter rape through the vernalization stage Take 35d. Winter rape in the vernalization room vernal effect than the refrigerator freezer effect. Appropriate extension of vernalization can improve vernalization. Extend the daily light time can speed up the process of rape’s fertility. The use of refrigerator freezer and growth chamber can be completed in Shanghai, semi-winter and winter rape vernal and summer work.