新白２号是从大白菜极早生中分离、选育的自交不亲和系Ｂ８－１－１－１与从地方品种焉耆中包头中分离、选育的自交不亲和系ＹＪ－３－１－２－１－１杂交选育的大白菜一代杂种，具有抗病（抗霜霉、病毒、软腐病）、高产、优质等优良特性。轻病年份净菜产量比当地主栽品种焉耆中包头增产１６．３４％。重病年份增产４３５．１％上。１９９２～１９９４年在新疆地区已推广２７３．３ｈｍ２，平均增产３０％以上。 Xinbai 2 is a selfing and incompatible line B8-1-1-1 isolated and bred from the earliest Chinese cabbage and selfing incompatible line YJ- 3-1-2-1-1 The first generation of Chinese cabbage hybrid breeding, with disease resistance (downy mildew, virus, soft rot), high yield, high quality and other fine features. Qingrelian net yield of vegetables than the local cultivated varieties Yanqi Baotou yield 16.34%. Serious increase of 435.1% on the year. From 1992 to 1994, 273.3hm2 has been popularized in Xinjiang, with an average increase of more than 30%.