大白菜新品种辽白19号的选育

辽白19号是由细胞核基因雄性不育系胶白1号A和自交系新乡903-S10-1配制而成的筒形大白菜一代杂种。生育期82 d（天）左右，株高46.2 cm，开展度64.3 cm，球高37.5 cm，横径17.0 cm。单株叶球质量4.5 kg左右，净菜率87.78 %，商品性好。生长势强，抗软腐病、霜霉病和病毒病，每667 m²产量9 300 kg左右。适宜吉林、辽宁、内蒙古、黑龙江等地栽培。

A New Chinese Cabbage F1 Hybrid -'Liaobai No.19'

‘Liaobai No.19’is a new Chinese cabbage F₁ hybrid developed by crossing genetic male sterility line Jiaobai No.1 A with selfing line Xinxiang 903-S10-1. Its growing period is about 82 days. The plant is 46.2 cm in height, 64.3 cm in width. Its leaf head is 37.5 cm in height, 17 cm in diameter. The average plant weight is 4.5 kg and the net product ratio is 87.78 %. It is resistant to TMV and downy mildew and soft rot. Its output is about 139.5 t•hm^-2. It is suitable to be cultivated in Jilin, Liaoning, Heilongjiang Provinces and Inner Mogolian Autonomous Region, etc.