矮化密植是果树获得优质高产的主要栽培措施,也是果园现代化的重要标志。对于苹果生产,由于有了各种型号的矮化砧系和短枝型品种,所以苹果的矮化密植在国内外发展都很快。相形之下,梨的矮化栽培差距很大,特别在矮砧选育方面报导的不多,虽然有用榅桲做梨矮化砧的报导,但榅桲不抗寒、亲和力差、生产上尚不能推广应用。因此,近几年来,我们在梨的育种工作中,比较注意梨的矮砧和短枝型的选育。代号为“7309—1”的矮生型梨新 Dwarf and close planting fruit trees to obtain high quality and yield of the main cultivation measures, but also an important symbol of the modernization of orchards. For apple production, due to various types of dwarfing anvil systems and spur-type varieties, the dwarfing and planting of apples has developed rapidly at home and abroad. In contrast, the dwarfing pear cultivars wide gap, especially in dwarf breeding reported little, although useful as pear dwarfing anvil report, but not cold, poor affinity, production Shang Shang Can not promote the application. Therefore, in recent years, we have paid more attention to the breeding of dwarf anvil and spur type pear in pear breeding work. Code-named “7309-1” dwarf pear-new