长富2苹果矮化中间砧密植与乔砧密植的比较试验

长富2矮化中间砧密植与乔砧密植11年的栽培试验结果表明,长富2矮化中间砧密植较乔砧密植单位面积枝量多28.9%,中短枝数量多119.3%,早结果2年,累计产量高49.8%,单果重、可溶性固形物含量、果实硬度、≥75mm横径好果率均有不同程度的提高。果形指数二者无明显差别,果实着色面≥80%果率中间砧密植显著高于乔砧密植,全红果率中间砧密植极显著高于乔砧密植。中间砧密植各项指标均达到优质丰产栽培要求。

A Comparision of Close Planting between Stocks of Changfu2 Dwrafing Intermediate and Vigorous

The results of a 11-year close planting comparision between changfu2 dwarfing intermediate stock (ch2di) and Vigorous stock (V) showed:In ch2di stock,branches number,middle-short branches number and fruiting are 28.9%,119.3% more and 2a earlier than those in vigorous stocks.And the single-fruit weight,soluble solid matter content、fruit hardiness and the rate of ≥75mm diameter fine fruit are all somewhat higher than those in vigorous stocks.In addition,there was no significant difference between fruit shape indexes of the two stocks;the rate of coloured area　≥80% fruit and the rate of whole red fruit of intermediate stocks are both higher than in vigorous stock.And all other indexes of the intermediate stock are higher than these of the vigorous ones.