栽培芍药‘大富贵’品种的小孢子母细胞减数分裂过程基本上是正常的。但也存在某些异常现象。作者观察到花药具二型花粉,正常花粉约占75.8％,异常花粉约占24.2％。在异常花粉中,约有29.9％的细胞发生核的超额分裂,即形成具3～5核的多核花粉。花粉的人工萌发试验结果,其萌发率约为36.5％,异常花粉不能萌发。 The process of meiosis of microspore mother cells in cultivated peony ’big rich’ varieties is basically normal. But there are some anomalies. The authors observed two types of pollen anther, the normal pollen accounted for about 75.8%, abnormal pollen accounted for about 24.2%. In abnormal pollen, about 29.9% of the cells undergo nuclear over-division, that is, the formation of polynuclear pollen with 3-5 nuclei. Germination of pollen artificial germination test results, the germination rate of about 36.5%, abnormal pollen can not germinate.