The male-sterile line C26 abortion form mainly has: the microspore mother cell can not develop into meiosis, because of the extrusion from the huge tapetum.

• 不育系C26的败育形式主要有：绒毡层巨大化，向内挤压小孢子母细胞，使其不能正常生长发育进入减数分裂；