The steirile plant in F2 populations was differ with the fertile one in the numbers of isozyme bands and the dosages of peroxidase isozyme.

• 过氧化物酶同工酶电泳图谱表明，F_2群体中不育单株与可育单株在过氧化物酶的酶带数量、酶剂量上存在差异。