长日洋葱新品种金球的选育

A New Long-day Onion F_1 Hybrid —‘Jinqiu’

金球是以雄性不育系B2354A为母本,自交系3104为父本育成的洋葱一代杂种。该品种属长日照、中晚熟类型,生育期120d(天)左右;平均单球质量203g,每667m2产量4500kg左右,比对照卡木依增产12.9%,鳞茎黄色、圆球形,肉质鳞片白色,质脆细嫩;抗病性强,较耐贮藏,适合黑龙江、吉林、内蒙古、新疆及河北等地区春播栽培,累计推广面积1100hm2。

‘ Jinqiu＇ is a new onion F1 hybrid by crossing male-sterile line B2354A with inbred line 3104. It belongs to the type of long-day and mid-late maturity. Its bulb growth period is about 120 days. The bulb is of round shape with yellow color. The average weight of single bulb is 203 g. The yield is 67.5 t. hm^-2, which is 12.9 % higher than the control‘Kamuyi＇ It is suitable for spring planting in Heilongjiang, Jilin, Inner Mongolia, Xinjiang and Hebei. Its extension area is 1 100 hm^2.