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1高接换头核桃多是实生苗,品种混杂,品质劣,抗性差。所以对于2-10年的树均可采用高接换头的方法换种,高接后2—3年即可达到一定产量。优良品种有薄壳香、鲁光、中林(1、2、3)。嫁接方法宜采用砧穗接合面积大的“蜡封接穗插皮接”,成活率较高。试验表明,4月9-15日,高接成活率为81％-89％,选直径为1.06-1.90cm的接穗成活率达80％。选优良母株上发育充实、髓心小、无病虫害的枝条中段,每个接穗
1 high access to walnut mostly live seedlings, hybrids, poor quality, poor resistance. So for 2 to 10 years of trees can be replaced by a high interchangeable head, high then 2 - 3 years to reach a certain yield. Fine varieties of thin shell incense, Lu Guang, Zhong Lin (1,2,3). Grafting method should be used anvil spike splicing area large “wax seal scalp plug access”, a higher survival rate. Tests showed that April 9-15, the high survival rate of 81% -89%, selection diameter of 1.06-1.90cm scion of survival rate of 80%. Selected fine strains of mother developed, pith small, non-pest branches in the middle, each scion