ABA content in aborted ovules maintained a relatively high level, but the contents of IAA and GA 1+3 dropped to the lowest level, and CTK content was obviously lower than that in normal ovules during the embryo abortion.

• 败育胚珠中ABA含量在胚胎败育期保持较高水平 ；IAA和GA1+ 3 则降到最低点 ；CTK含量亦明显低于正常胚珠 .