1965年,淄博市将当地野生桔梗Platy-codon grandiflorum 变家种试验成功,但产量较低,亩产干商品仅 150 kg左右。1976年以后,每年播种面积发展到200亩,提供商品27000kg左右,除满足本市用药外,还可部分外调。从1987年开始,吉林延边地区发现本市产的桔梗做成小菜又脆又嫩,便大量收购,一时成了抢 In 1965, Zibo City, the local wild Platycodon grandiflorum Platy-codon grandiflorum changed the test success, but the yield is low, only 150 kg per mu of dry goods. After 1976, the annual sown area has grown to 200 mu, providing about 27,000 kg of goods, in addition to meeting the city medication, but also part of the transfer. From 1987 onwards, found in the Yanbian area of ​​Campanulaceus made of small and crisp and tender dishes, then a large number of acquisitions, has become a grab