早熟青麻叶大白菜新品种京翠60号的选育

京翠60号为早熟青麻叶大白菜一代杂种，是利用游离小孢子培养结合人工接种抗病性鉴定技术育成的新品种。成熟期60～65 d（天），株型较直立，株高58 cm，开展度65 cm，叶形长倒卵形，叶色深绿，叶面多皱，绿帮；叶球长筒形，拧抱，叶球颜色绿，叶球内叶颜色浅黄；叶球高40 cm，叶球直径13 cm，叶球质量2.0～2.4 kg，品质优，高抗病毒病，抗霜霉病和黑腐病。平均每667 m2净菜产量4 500 kg左右，适合北京、河北、内蒙古、辽宁、吉林、云南、贵州、广西等地区种植，目前累计推广面积达1 000 hm2。

A New Chinese Cabage F1 Hybrid —‘Jingcui No.60’

‘Jingcui No.60’is a high quality Chinese cabbage F1 hybrid bred with microspore culture technology. It is an early-maturity variety. It can be harvested in 60-65 days after sowing. The plant type is up righting and the plant height is 58 cm. Its leaf is of long downside egg shape. Its leaf is of dark green color with many wrinkles. Its leaf head is of long tube shape with green color. The leaf head is 40 cm in height, 13 cm in diameter. The leaf head weight is 2.0-2.4 kg. This variety is of excellent quality, high resistant to virus disease, resistant to downy mildew and black rot. It can yield about 67.5 t?hm-2. It is suitable to grow in Beijing, Hebei, Inner Mongolia, Liaoning, Jilin, Yunnan, Guizhou and Guangxi. The total extension area is nearly 1 000 hm2.