野生铁核桃嫁接改造技术的研究

为有效地利用云南省的野生铁核桃资源,提高其经济效益,在昆明市的禄劝、晋宁开展了历时5年(1999~2004年)的野生铁核桃嫁接改造技术的试验。结果表明,以树龄20年以下,胸径不超过20 cm的野生铁核桃作砧木,选用与其生境相近的云南优良漾濞核桃品种作接穗,用插皮接或切接方法在砧木的萌芽展叶期嫁接,可获得良好的效果。其嫁接成活率高(76.5%以上),嫁接成活的新植株具有野生铁核桃发达的根系,生长适应性强,2~3年结果,果实的品质好,经济价值高。

A Study of Grafting Technology of Hard Husk Wild Walnut Trees

In order to effectively utilize the resources of hard husk wild walnut trees in Yunnan province and to increase the economic benefit, experiments were carried out on grafting technology of hard husk wild walnut trees in Luquan county and Jinning county from 1999 to 2004.The experimental results showed that using the hard husk wild walnut trees younger than 20 years,and DBH lower than 20 cm as the livestock,taking the scions from quality walnut varieties of Yangbi county at similar habitats,through high-stem grafting and cut grafting at bud germination and leaf-expansion period,good grafting effect could be achieved,with the grafting survival rate of 76.5 %.The grafted plants had the root system of hard husk wild walnut tree,with high adaptability and stress resistance,fruiting 2 to 3 years after grafting,the quality of the fruits was very good and economic benefit was quite high.