果树染色体的观察,是果树细胞学研究的基础,也是育种工作中,染色体倍数性鉴定和育种材料的选择,必须掌握的基本技术.但是,目前在果树染色体研究方面,资料较少.为了探讨果树花粉母细胞减数分裂时,染色体的形态、数目及其行为动态,我们对苹果花粉母细胞的减数分裂进行了观察.现将观察结果整理如下,以供参考. The observation of fruit tree chromosomes is the basis of fruit tree cytology and also the basic technique that must be grasped in breeding work, chromosome identification and breeding material selection.But, there are few data about fruit chromosomes research at present.In order to study fruit trees Pollen mother cell meiosis, chromosome morphology, the number and behavior of dynamic, we observed the meiosis of apple pollen mother cells were observed the results are summarized below, for reference.