减数分裂过程中染色体行为异常的花粉母细胞约占10.28%；雄配子体发育过程中异常频率约为3.2%，败育主要发生在单核期。
In meiosis, the pollen mother cells that abnormally acted made up about 10.28% and the male gametophytes abnormally acted at a frequency of 3.2% and mainly aborted at uninucleate stage.
在凹叶厚朴大、小孢子发生和雌、雄配子体发育过程中存在部分败育现象。
The megasporogenesis and microsporogenesis and the development of their female and male gametophyte are partially abnormal.
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