Classification ▣孢子发生雄性不育：小孢子发生或雄配子体发 生异常→花粉异常 Male sterility happing during the development of microspore ©功能性雄性不育：花粉正常但花药不开裂 Functional male sterility:No dehiscence of anthers found but with normal pollen7 Classification ◎孢子发生雄性不育：小孢子发生或雄配子体发 生异常→花粉异常 Male sterility happing during the development of microspore ◎功能性雄性不育：花粉正常但花药不开裂 Functional male sterility: No dehiscence of anthers found but with normal pollen