大白菜新品种晋绿5号的选育

A New Chinese Cabbage F_1 Hybrid—‘Jinlyu No. 5'

晋绿5号是以雄性不育系90F3-7-1为母本,以自交系20-12-1-1为父本配制而成的秋中早熟大白菜一代杂种,生育期65-70d（天）。植株生长势强,株高50cm,开展度45cm;外叶深绿,叶柄浅绿,心叶黄色,叶球直筒舒心,结球紧实,单球质量1.5-2.0kg,净菜率80.1%;外叶少,植株紧凑,适宜密植,每667m2净菜产量6000-7000kg;对大白菜霜霉病和软腐病的抗性强于对照津育60,品质及商品性好,适宜山西省及周边地区种植。

‘Jinlyu No.5＇ is a Chinese cabbage F_1 hybrid,developed by crossing male sterile line ‘90F3-7-1＇ as female parent and self-incompatible line ‘20-12-1-1＇ as male parent. It is of mid-early maturity. Its growing period is 65-70 days. Its plant has strong growth vigor,and is 50 cm in height and 45 cm in width. The outer leaves are dark green in color. Its petiole is light green,and the inner leaves are yellow. Its head is of straight type and compact in shape. The single head weight is 1.5-2.0 kg. Its net vegetable ratio is 80.1%. It has few outer leaves,so it is suitable for planting with high density. It can yield 90-105 t·hm^-2. Its resistance to downy mildew and soft rot is stronger than that of the contrast ‘Jinyu 60＇. It has good quality and commodity. It is suitable for cultivation in Shanxi Province and surrounding regions.