Abstract: ‘Qianbai No. 8’, a medium maturing Chinese cabbage F₁ hybrid bred by crossing cold and bolting tolerant inbred line ye12-3 with strong winterness self-incompatible line C-2, was dvevloped in order to meet the need of off-season production of Chinese cabbage in Guizhou Province in winter and early spring.
This variety has the characteristics of cold tolerance, strong resistant to bolting and general diseases, high yielding and good commodity quality. It has strong growth vigor under severe cold condition in winter and spring. The plant is 39.8 cm in height, 50.2 cm in width, and its net yield is about 75 t·hm^-2. It is suitable to be cultivated in Guizhou Province and regions with similar ecological conditions in late autumn for early spring market or in early spring for spring and summer market.

Key words: Chinese cabbage；&lsquo, Qianbai No. 8&rsquo, ；F₁ hybrid； Bolting tolerance

摘要： 为了满足贵州省越冬及早春反季节大白菜生产需要，采用抗寒耐抽薹自交系ye12-3 和强冬性自交不亲和系C-2 作亲本配制而成中熟一代杂种黔白8 号。该品种具有抗寒、耐抽薹、抗病性强、产量高、商品性佳等特点。在冬春严寒条件下生长势强，株高39.8 cm，开展度50.2 cm，一般每667 m² 净菜产量5 000 kg 左右，适宜贵州省大白菜产区及类似生态区晚秋播种越冬栽培早春上市以及早春栽培春夏上市。

关键词: 大白菜, 黔白8 号, 一代杂种, 耐抽薹