一、嫁接在林业上的应用嫁接在林业上大面积的实际应用,开始于本世纪三十年代,是丹麦和瑞典的林学家建议应用嫁接苗建立种子园开始搞起来的。以后,世界各国在林木育种和良种繁育工作中广泛地采用了嫁接方法。解放后,我国各地劳动人民创造了很多嫁接方法,在繁殖和推广良种,利用和扩大野生资源以及直接用来改造低产林分方面,取得了很大的成果。如河南省汝县利用荒山上野生的酸枣接大枣几千万株,一举改变了荒山面貌。河北省利用野生 First, the application of grafting in forestry The large-scale practical application of grafting in forestry started in the thirties of this century. It was recommended by forestry experts in Denmark and Sweden to apply grafting seed to establish seed orchard. Later, various countries in the world widely adopted the grafting method in tree breeding and breeding. After the liberation, many working people in various parts of China have created many grafting methods and great achievements have been made in breeding and promoting good varieties, in utilizing and expanding wild resources, and in directly transforming low-yielding stands. Ru County, Henan Province, such as the use of wild mountain jujube jujube access tens of millions of strains, in one fell swoop changed the face of barren hills. Hebei use of wild