利用青花菜胞质雄性不育系育成新品种绿宝2号

Breeding and Utilization of CMS Line in Broccoli

1996～ 2 0 0 1年利用 3个引进的青花菜胞质雄性不育材料为不育源 ,对不同类型的青花菜材料分别进行转育 ,育成一批不同熟性不同类型的青花菜不育材料。这批材料不育性稳定 ,其不育株率和不育度均为 10 0 %,蜜腺正常 ,结籽正常 ,农艺性状与保持系基本一致。对育成的雄性不育系进行配合力测定 ,并对所配制的组合进行品种比较试验和生产示范 ,选育出青花菜新品种绿宝 2号。该品种抗病毒病和黑腐病 ,主花球产量 12 0 0～15 0 0kg·(6 6 7m2 ) -1。

From 1996 to 2001,with three imported broccoli CMS lines as the sterile resources,different types of broccoli materials have been respectively hybridized and backcrossed,a batch of various sorts of broccoli materials with the different ripe features have been obtained. Characterized by 100% rate of the stable sterility,those materials contain normal nectary and good seeding capacities. Their horticultural characters are the same as their maintainer. The combining ability of the breded CMS lines and its combination were tested.A new broccoli F 1 hybrid Lubao No.2 was developed.It yields 80-100 t·hm -2.