早秋大白菜新品种淄白7号的选育

A New Chinese Cabbage F_1 Hybrid—'Zibai No. 7'

淄白7号属早秋品种,从播种到收获60 d(天)。母本96-9是从台湾耐热白菜杂交后代中经多代定向选育而成的自交不亲和系,父本9542-2选自石特变异株。该品种外叶浅绿色,球叶叠抱,倒卵圆形,球顶圆,结球紧实。较抗病毒病、霜霉病和软腐病。平均单球质量2.5 kg,一般每667 m^2净菜产量3 600～4 000 kg。

Zibai No.7 is a new Chinese cabbage F_1 hybrid developed by crossing two self-incompatible lines 96-9 and 9542-2. It can be harvested in 60 days after sowing. The average head weight is about 2.5kg. Its yield is about 54-60t·hm^(-2).