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云南省核桃产业总面积288万hm~2,近年来受到冻害长出铁核桃和发展速度过快杂劣品种问题突出,需改造嫁接的铁核桃和杂劣品种数量较大,5年内我们分别在昆明市省林业科学院、怒江州贡山县、丽江市古城区、曲靖市陆良县、昭通市鲁甸县5个不同地区采用劈接、切接、插皮接、插皮舌接4种方法进行试验。总结出:在云南省内不同地区大树嫁接改造,根据不同嫁接要求、特点和成活率情况,劈接法嫁接成活率不高,可以不考虑选用。其余3种嫁接法各有优点,可以根据实际需要选用。
The total area of walnut industry in Yunnan Province is 2.88 million hm ~ 2. In recent years, the problems of frost-harming long-growing walnuts and developing too fast and poor varieties are outstanding. The number of grafted walnuts and miscellaneous varieties needs to be improved. Within 5 years, Kunming Forestry Academy, Nujiang Prefecture, Gongshan County, Lijiang City, Old City, Luliang County, Qujing City, Zhaotong City, Ludian County, five different regions using split, cut access, cut the skin access, experimenting. It is concluded that the grafting of large trees in different regions of Yunnan Province has been carried out. According to the requirements, characteristics and survival rate of grafting, the survival rate of grafting by splitting method is not high and can not be considered. The remaining three kinds of grafting have their own advantages, according to the actual needs of choice.