矮化砧木嫁接苹果,不仅能够抑制生长,使树体矮化,而且容易形成花芽,结果早、产量高、果实品质好。但是,矮砧果苗的繁殖比较麻烦,培育无病毒砧苗也有一定的困难。因此,选育无融合生殖的实生矮化砧是非常必要的。我们从1974年开始,利用本省的砧木资源—平邑甜茶(M.hupehensis Rehd)具有弧雌生殖的特性,通过辐射处理,期望育成可以实生繁殖的无融合生殖矮化砧木。通过几年的工作,初步选出了几个比较稳定的变异单系。 Dwarf rootstock grafting apples, not only can inhibit growth, dwarf the tree, but also easy to form flower buds, the results of early, high yield, good fruit quality. However, the breeding of dwarf ancestral seedlings is cumbersome and it is also difficult to cultivate virus-free rootstocks. Therefore, the selection of apomictic dwarfing anvil is very necessary. Since 1974, we have used M.hupehensis Rehd which is the rootstock resource of our province to have the characteristic of arc female reproductive. Through radiation treatment, we expect to grow into apomictic dwarf rootstock that can be bred in real life. After several years of work, initially selected a few relatively stable single mutation.