以开心形丰水梨幼树为试材，通过轻剪、重剪和不修剪处理对其树体生长指标、产量、根系分布度进行比较分析。

The young trees of open-center shaped Housui pear were used as the material to study the effect of different pruning rate(light, heavy and no) on the pear tree growth, fruiting and root growth.

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以S2、S5、PDR54为中间砧，嫁接早酥梨、锦丰、雪花梨，三种矮化中间砧嫁接树均比对照树提早2 ~ 3年结果。

Compared with the control, pear (Zaosu, Jinfeng and Xuehua) with S2, S5 and PDR54 as inter rootstock bore fruits ahead of 2-3 years.

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