在中学实验中，运用常规的压片法制作根尖细胞有丝分裂装片，虽然方法简单易行，也能够观察到染色体，但染色体很难完全散开，能供核型分析的细胞极少，学生无法进行染色体计数、绘图及结构分析。笔者参考了有关资料，采取根尖细胞去壁、低渗、火焰干燥的新方法制作有丝分裂装? In the middle school experiment, the conventional squashing method was used to make the mitotic loading of the apical cells. Although the method was simple and feasible, and the chromosomes could be observed, it was difficult for the chromosomes to spread completely, and there were very few cells that could be used for karyotype analysis. Chromosomal counting, mapping, and structural analysis cannot be performed. The author refers to the relevant information, to take root cells to the wall, low permeability, flame drying new method of making mitosis?