以植物造景为主的现代园林绿化必须具有各种数量充足的、丰富多采的优良植物品种。保持优良的植物品种,在生产、繁殖过程中能否保证不混乱、不退化、不丢失,就需要制一定套先进而严格的良种繁育制度。因此,良种繁育工作不仅是园林绿化工作的重要组成部分,而且是园林绿化的重要基础。对培育工作开展的好坏,是一个城市绿化工作质量水平的重要标志之一。目前发达国家都具有较为完善的、并具有现代化科学管理水平的良种繁育体系,从而保证了绿化的 Modern plant landscaping based on plant landscaping must have a variety of rich, rich and fine varieties of plants. Maintaining good plant varieties, in the production and breeding process can guarantee confusion, no degradation, no loss, you need to set a certain set of advanced and strict system of breeding. Therefore, breeding is not only an important part of landscaping, but also an important foundation of landscaping. The development of nurturing work is good or bad, is an important symbol of the quality of urban greening work. At present, all developed countries have relatively perfect breeding system of modern breeding and scientific management, thus ensuring the afforestation