６０年代初利用我国丰富的野生资源与早菊进行远缘杂交育种，育成一批抗性强、耐粗放管理、开花特为繁密、能在北京露地越冬的菊花品种群──岩菊，这是地被菊的前身。８０年代中期，为克服岩菊易倒伏等缺点，将植株低矮的早菊品种‘美矮粉’与野生菊进行杂交，终于培育出了更 In the early 1960s, we used the abundant wild resources of our country and Zao Ju for distant hybrid breeding and bred a group of chrysanthemum varieties ─ ─ rock chrysanthemum, which are strong resistant, extensively managed and overwintered in Beijing, Ground was the predecessor of chrysanthemum. In the mid-1980s, in order to overcome the shortcomings of rock chrysanthemum lodging, etc., the low-yielding Chrysanthemum morifolium cultivar ’Mei Dian Fen’ was crossed with the wild chrysanthemum, and finally more