利用二四倍体杂交选育出新四倍体大白菜新品种大白菜为二倍体植物。目前获得四倍体大白菜的途径，除少数自然发生外，多采用秋水仙素处理或远缘杂交的方法。承担国家“八五”攻关研究“大白菜新品种选育技术研究”的河北省农林科学院蔬菜研究所利用二、四倍体大白菜杂交，... Breeding new tetraploid Chinese cabbage as diploid by using tetraploid hybridization. The current access to tetraploid Chinese cabbage approach, with the exception of a few natural occurrence, the use of colchicine treatment or distant hybridization methods. Undertake national “Eighth” key research “Chinese cabbage new variety breeding technology” of Hebei Academy of Agriculture and Forestry Institute of vegetables using two, tetraploid Chinese cabbage hybridization, ...