近几年，因受市场经济的制约，苹果生产已由数量型向质量型快速转化，以前的国光、倭锦等老品种已面临淘汰的局面。然而北方大部分苹果产区的国光、倭锦等老品种仍占较大的比重。如何使之尽快转变为适合市场需要的新一代优质苹果新品种，是每个果树技术工作人员和果农的迫... In recent years, due to market economy constraints, Apple’s production has rapidly transformed from quantity-based to quality-oriented products. The former varieties such as Guoguang and Sojin have been eliminated. However, most of the northern part of the apple-producing areas such as Guoguang and Japanese Kam still occupy a larger proportion. How to make it as soon as possible to adapt to the needs of the market a new generation of high-quality apple varieties, each fruit tree technicians and fruit farmers forced ...