锦橙是四川柑桔主栽良种。部分成年植株,由于栽培管理粗放,树势弱、多花、少果、产量低。我们于1979年秋对历年多花少果的14株27年生共砧锦橙,用丰产优质的锦橙接穗进行多头高接。1980年基本恢复树冠,1981年开花结果,平均株产63斤,比改造前四年(1976—1979)平均株产35.8斤增产76%,取得良好效果。从已换接的14个单株产量看,有11个单株增产,最高株产达109斤。 Orange is the main planting citrus in Sichuan. Some adult plants, due to extensive cultivation and management, tree weak, more flowers, less fruit, low yield. In the autumn of 1979, we planted a total of 14 27-year-old male oranges, which spend more on young fruits over the years. In 1980, the tree crown was basically restored. In 1981, the flowering result was 63 kg on average, yielding an average yield of 35.8 kg and an increase of 76% over the first four years (1976-1979), achieving good results. From the 14 plants have been switched to yield, there are 11 plants yield, the highest strain of 109 kg.