大葱雄性不育系353A的选育

Breeding of Welsh Onion Male Sterility Line 353A

以常规品种‘青叶1号’繁种田中发现的大葱不育株为不育源,利用回交转育法选育出稳定的不育系353A和相应保持系353B,该不育系的不育株率、不育度均接近100%,353A、353B授粉后结实正常,以353A为母本配制的杂交组合表现出很强的抗逆性及产量优势,为大葱种质资源的创新及杂种优势的利用奠定了一定基础。

The Chinese onion male sterile materials which were found in the traditional variety‘Qingye No.1’were used,to select the stable male sterile line 353 A and its maintainer line 353 B by the backcross breeding method,the male-sterile rate and the degree of sterile plant were both approach100%,and using 353 Bto pollinate 353 Acould make it normal seed.The hybrid combinations with353 Aas female parent showed strong resistance and yield advantage.The breeding of new male sterile lines laid a foundation for the innovation of Chinese onion germplasm resources and heterosis utilization.