本试验通过对黔型小麦雄性不育系及其保持系花药和花粉发育过程进行细胞形态学的观察和分析,初步查明雄性不育性属于细胞质雄性不育性(CMS),在小孢子发育早期以前,不育花药和花粉的发育,90％以上与保持系相似,是正常的,只有少数表现异常,异常现象有:药室合并、花粉母细胞解体、染色体行为异常、畸形四分体和绒毡层细胞提前解体。不育系花粉的败育,在小孢子发育的各个时期都有发生,但败育的关键时期,是在小孢子发育后期,小孢子不能进入雄配子体发育阶段而彻底败育。 In this experiment, we observed and analyzed the morphology of anther and pollen of Guizhou male sterile lines and their maintainer lines. The results showed that male sterility belonged to cytoplasmic male sterility (CMS) Earlier, sterile anthers and pollen development, more than 90% of the retention system is similar to normal, only a few abnormalities, abnormalities are: pharmacy merger, pollen mother cells disintegration, chromosomal abnormalities, deformity tetrad and Tape cells soon disintegrated. Pollen abortion in CMS lines occurs in all stages of microspore development. However, the critical stage of abortion is that in the late stage of microspore development, the microspores can not completely enter the male gametophyte development stage.