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核桃室外枝接技术的研究,近年来各地区进行了大量的工作,也取得了许多成功的结果.但在生产实践中难以推广,其主要原因是成活率不稳定.我们自1985年开始进行该项技术研究,经3年的试验说明,影响核桃小苗室外枝接成活的主要因子是:(1)接穗的贮藏保鲜;(2)砧木伤流;(3)嫁接时期;(4)嫁接方法:(5)品种差异等.取得了嫁接成活率为70～97%的结果,并提出提高核桃室外枝接成活率的方法.
Walnut outdoor branch technology research, in recent years, a lot of work in various regions, but also achieved many successful results.But in the production practice is difficult to promote, the main reason is that the survival rate is not stable.We started in 1985 Item of technical research, after 3 years of experiment shows that the main factors that affect the survival of walnut seedlings outdoor branches are: (1) scion storage and preservation; (2) rootstock injury; (3) grafting period; (4) grafting method: (5) Differences in cultivars, etc. The grafting survival rate was 70-97%, and the method to improve the survival rate of walnut outdoor branches was proposed.