大白菜是解决我省冬、春季蔬菜供应的主要蔬菜.但是,由于我省夏秋季气温偏低,7、8月份的最低气温常在12.5℃以下,现有大白菜品种又多对低温较敏感,播早了易先期抽薹,播晚了则包心不良,因而影响了生产的发展,使大白菜的供应长期以来不得不主要靠外省调拨。所以,选育适于低温条件 Chinese cabbage is the main vegetable to solve winter and spring vegetable supply in our province.But due to the low temperature in summer and autumn in our province, the minimum temperature in July and August is often below 12.5 ℃, and the existing varieties of cabbage are more sensitive to low temperature , Sowing early early bolting, sowing the late poor, thus affecting the development of production, so that the supply of cabbage has long been mainly rely on foreign allocation. Therefore, breeding suitable for low temperature conditions