蓄热保湿法在核桃高枝嫁接改良中的优势分析

Superiority of Heat Moisture Method on High Branches Grafting Modified of Walnut

为解决昭阳区核桃高枝嫁接成活率低的难题,进行蓄热保湿嫁接试验。结果表明成效明显,采用常规嫁接苗木成活率为52.7%,而采取蓄热保湿嫁接法则成活率高达89.3%。认为处理、贮藏良好蜡封穗条待用是成活的前提,嫁接时砧木、接穗接触面要尽可能增大,且平滑、紧密是成活的保证,嫁接口包扎新鲜湿锯木屑是促进二者愈合的核心,做好管护,保证接穗萌发所需水分、养分不可缺少。

In order to solve the problems of low grafting survival rate of walnut in Zhaoyang District, heat moisturizing grafting test was conducted. The results showed that seedling survival rate of conventional grafting method was 52.7% , while grafting survival rate of heat moisturizing was up to 89.3%. Good wax seal and storage on cuttings handling was a prerequisite for the survival rate, keeping bigger and smooth contact surface on grafted rootstock was a guarantee, wrapping up with fresh and wet sawdust on grafting surface was a key to promote regrowth. It was indispensable to keep good management, ensure the scion germination needed water and nutrient for high branch grafting modified of walnut.