当前果树栽培的主要特点是矮化、密植、早结果。苹果利用矮化中间砧栽培能实现树体矮化、树冠紧凑、土地利用经济、光能利用充分和便于生产管理,对早期丰产栽培有显著效果。我省江淮丘陵地区引进苹果进行生产性栽培已有三十多年的历史。这里周年温湿度偏高,苹果能正常生长;但由于7—8月份持续高温时间较长,不利于营养积累和花芽形成。用矮化中间砧嫁接易成花和早结果的品种,可以克服不利的气候因素,迅速提高单位面积产量和促进幼树早期丰产。本试验选择M与MM系中不同矮化性能的代表型号,作为密植栽培的中间砧嫁接不同品种,目的是探索丰产栽培的适宜砧穗组合、矮化效果、栽植密度、树体结构等方面与产量的 The current fruit tree cultivation is characterized by dwarf, close planting, early results. Apple dwarfing anvil can be dwarfed cultivation, compact tree crown, land use economy, adequate use of light energy and ease of production management, the early high yield cultivation has a significant effect. The introduction of apple cultivation in Jianghuai hilly areas in our province has been more than thirty years old. Annual anniversary of high temperature and humidity, the apple can grow normally; but due to the prolonged high temperature in July-August, is not conducive to nutrient accumulation and flower bud formation. Grafting easy-to-flower and early-fruiting varieties with dwarfing intermediate stocks can overcome unfavorable climatic factors, rapidly increase yield per unit area and promote early seedling yield. In this experiment, the representative models with different dwarfing properties in M ​​and MM lines were selected as the grafting cultivars for grafting different varieties with the purpose of exploring suitable combinations of dwarfing effect, planting density and tree structure in high yielding cultivation Yield