利用改良石碳酸品红染色,相差显微镜观察,发现糖甜菜有丝分裂过程中从晚前期到中期,各染色体的收缩是非等比的;中期以前各时期,染色体相差明显;晚前期染色体不仅末端明显可辨,而且可见染色体臂上有明显分化.文章讨论了晚前期进行G显带的可能性。 Using modified carbonate fuchsin staining and phase contrast microscopy, it was found that during the process of mitosis of sugar beet, the contraction of each chromosome was non-proportional from early to mid-term. Chromosomes were obviously different in each period before mid-term; , But also shows obvious differentiation on the chromosome arm.The article discusses the possibility of G-banding in the early prophase.