梨树是一种乔木果树,生产上不仅缺乏矮化品种,更缺少矮化砧木。近年来我们开展了梨的矮化种质资源研究,对大量种间杂种实生苗进行了观察选择,从锦香梨实生后代中发现具有矮化性状的单株,经嫁接鉴定选出国内外罕见的紧凑型矮生单系6个(编号为S_1—S_6)。这种矮生梨与乔化普通型相比,具有树矮、新梢生长量小、枝条节问 Pear is a tree fruit tree, the production is not only the lack of dwarf varieties, more dwarfing rootstocks. In recent years, we carried out research on the dwarf germplasm resources of pear, observed and selected a large number of interspecific hybrid seedlings, found single plants with dwarf traits among the progenies of Jinxiang pear, and selected rare grafts at home and abroad Of the compact dwarf single line 6 (numbered S_1-S_6). This dwarf pears compared with the ordinary Joe type, with short trees, shoot growth is small, asked the branches asked