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开花三天之内授粉，油菜结实率最高。开花三天以后授粉，在子房基部偶然有个别胚珠膨大，但没见到成熟的种子，一般地，开花三天后胚囊内容物开始退化，到六天时，退化至珠被细胞。
Pollination within three days of flowering, rapeseed the highest rate. After three days of flowering, the embryos were pollinated. Occasionally individual ovules were enlarged at the base of the ovary, but no mature seeds were seen. Normally, the contents of the embryo sac began to degenerate after three days of flowering and degenerated to cells of the beads by day six.