矮化栽培是当前世界上果树发展的主要趋势。利用矮化砧木是矮化栽培的主要措施之一,它有树冠紧凑,适于密植,便于管理,宜于机耕,提早结果,丰产稳产,增加单位面积产量等许多优点,在苹果栽培上已广泛应用。我们于一九五三年起,用锦橙和油力克柠檬为接穗,嫁接在不同的二十三种砧木上,进行比较试验,经过二十二年来的试 Dwarfing cultivation is the main trend in the development of fruit trees in the world at present. The use of dwarfing rootstock is one of the main measures of dwarfing cultivation, which has the advantages of compact crown, suitable for close planting, easy management, suitable for tillage, early result, high and stable yield, increase yield per unit area and many other advantages. It has been widely cultivated in apple application. Since 1953, we have used grapes of orange and kelp as scions, grafted onto twenty-three different rootstocks for comparative trials, and after twenty-two years of trials