【摘要】 豫西地区作为我国苹果主产区之一，苹果产业在农业生产中占有重要地位。但由于当地多数果园品种单一、树龄老化严重，导致产量下降、品质降低，且管理成本逐年升高，生产效益越来越低。亟须品种更新换代。高接换优能较快形成愈伤组织，同时高接树根系发达，树体稳定性好，不易被风吹倒，新梢生长量能达到1 m以上。一般第2年成形，第3年见产量。作者介绍了苹果高接换优技术，以期为豫西苹果产业的健康发展提供参考。更多还原

【Abstract】 The western region of Henan province was one of the main apple producing areas in China,and played an important role in agricultural production. However, due to the single variety and severe aging of most orchards in the local area, the yield and quality have reduced, and the management cost has been increasing year by year. So it was urgent to update the varieties and replacements. The top grafting technique can form callus quickly. At the same time, top grafting has a well-developed root system, good tree stability, and was not easily blown down by wind. The growth of new shoots can reach more than 1m. The top-grafted tree was generally formed in the second year and the fruit has begun in the third year. Author introduced the production technology of apple top grafting, in order to provide reference for the healthy development of apple industry in western Henan.更多还原