研究了甘蓝型杂交油菜杂种秦油 2号、不育系陕 2 A和保持系陕 2 B种子胎萌发生情况及其对种子质量的影响 .结果表明 :这些种子的胎萌发生在开花后 19d左右 ,并随着种子发育日趋成熟而有不断增多的趋势 ,而常规品种垦 C1种子胎萌发生在成熟后期 (开花后 31d) .甘蓝型杂交油菜种子因胎萌引起生活力和活力降低 ,种子胎萌也引起种子含油量下降和可溶性糖含量升高 ,但是对种子蛋白质含量无明显影响 ,这可能与种子胎萌时相应代谢途径中关键酶异柠檬酸裂解酶活性上升有关 The seed germination and the effect on the seed quality of hybrid oil Qinzaoyou 2, CMS line Shaan 2 A and maintainer line Sha 2 2B were studied.The results showed that the embryo germination of these seeds occurred at 19 days after flowering , And with the maturity of the seed growing trend, but the conventional cultivars C1 seed germination occurred in the mature stage (after the flowering 31d) .Brown rape seed germination led to decreased viability and vitality, seed Fetus also caused seed oil content decreased and soluble sugar content increased, but the seed protein content had no significant effect, which may be related to the corresponding key metabolic pathway when the embryo isocitrate lyase activity increased