Based on the technique for seed production of Northern Oil Sunflower,the experimental hybrid production of European Oil Sunflower hybrid was studied in Huili in 2008 and 2009.The results indicated that sowing time of hybrid seed production of European Oil Sunflower should be at spring sowing stage,and using the seedling transplanting method.In order to make the synchronization of flowering of male parent and female parent of European Oil Sunflower seed production,the sowing date of the first period male par...