繁育核桃良种苗木应采用嫁接方法.但由于嫁接所用砧木为核桃实生苗,每株实生苗只能嫁接培育一株良种苗,所以良种苗木成本较高。为了降低成本,加快良种苗木繁殖速度,充分利用核桃室内嫁接和阳畦嫁接时剪掉的大量根系用实生苗根系发达,每株二年生实生苗可嫁接繁殖3至5株良种苗的特 Breeding walnut seedlings should be used grafting seedlings, but because the rootstocks used for grafting walnut seedlings, seedlings per plant can only be grafted to cultivate a good seedling, seedling seed cost is higher. In order to reduce costs and speed up breeding seedling seed propagation speed, make full use of indoor grafting walnut and Yang grafted a large number of roots cut with roots of real seedlings, each biennial seedlings can be grafted breeding 3 to 5 seedlings special