Fertile anthem were higher in IAA, GA3 and ZR contents, but lower in ABA content than sterile anthem, especially at the abortion stage of pollen mother cells.

• 在IAA、GA3和ZR含量上，不育花药低于可育花药，但在ABA含量上，不育花药高于可育花药，这种差异在花粉母细胞减数分裂时期达最大值。