⊙小孢子发生异常，形成不能存活、畸形或败育 花粉 Abnormal microspore developed, or microspores died, or sterile pollen developed ©花粉不能成熟或无萌发能力 No mature pollen. Pollen can not germinate ©花粉有生活力但花药不开裂 No dehiscence of anthers found but with normal pollen 55 ◎小孢子发生异常，形成不能存活、畸形或败育 花粉 Abnormal microspore developed, or microspores died, or sterile pollen developed ◎花粉不能成熟或无萌发能力 No mature pollen. Pollen can not germinate ◎花粉有生活力但花药不开裂 No dehiscence of anthers found but with normal pollen