青花菜新品种“碧杉”“碧松”和“Ｂ２７”“Ｂ５３”育成北京市农科院蔬菜研究中心，从８０年代初搜集、引种国外青花菜品种资源，进行其新品种选育研究，分别于“七五”时期，育成了“碧杉”“碧松”两个新品种，为我国首批利用自交不亲和系育成的新品种，在一些种植区... The new varieties of broccoli, “Bizhan”, “Besson” and “B27” and “B53”, were bred into the Vegetable Research Center of Beijing Academy of Agricultural Sciences. From the early 1980s, the overseas varieties of broccoli were introduced and cultivated. During the “Seventh Five-Year Plan” period, two new varieties of “Bifeng” and “Bissong” have been bred respectively, which are the first new breeds in China that are bred using self-incompatibility lines.