昆明杨月季园艺有限责任公司培育的我国首个拥有自主知识产权的大宗月季商品——‘冰清’种苗,开始在国内推广和销售。2000年5月,杨月季公司员工发现其基地里一株叫‘托斯卡尼’的月季植株枝条发生变异。之后,该公司至少连续3代使用这一变异枝条进行扦插和嫁接繁殖。通过仔细观 Kunming Young Rose Gardening Co., Ltd. cultivated the country’s first independent intellectual property rights with the bulk of the rose commodity - ’ice-clear’ seedlings, began to promote and sell in the country. May 2000, Yang Yue quarter company employees found a base in the plant called “Tuscan” rose plant branches mutants. Later, the company used the mutant for at least three consecutive generations for cutting and grafting. Through careful observation