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银杏含多种营养,具有延缓衰老、润滑皮肤功用。既是高级滋补营养品,又是珍贵药材,为我国特产,是传统出口产品,畅销国际市场。 银杏生长慢,结果晚,一般实生栽培需20年左右才能结果。采用嫁接法栽培,虽可提早结果,但习惯采用大砧嫁接,从嫁接到成苗需要5年以上时间,育苗速度慢。尤其是银杏生产基地建设,运用密植早期丰产栽培技术,对苗木需求量大。因此,快速繁殖银杏良种苗木,已成为银杏早果丰产栽培中极待解决的问题。 1986年7月中旬至8月上旬我们进行了银杏小苗绿枝嫁接试验,取得了较好效果。2年生当年移植苗绿枝嫁接成活率最高达91％,1年生当年移植苗嫁接最高成活率达72％。
Ginkgo contains a variety of nutrients, with anti-aging, lubricating the skin function. Not only advanced nourishing nutrition, but also precious herbs, for our specialty, is a traditional export products, selling the international market. Ginkgo growth is slow, the result is late, the general real cultivation takes about 20 years to result. Grafting cultivation, although the results can be early, but used to use large anvil grafting, from grafting to mature seedlings need more than 5 years, seedling speed is slow. Especially ginkgo production base construction, the use of dense planting early high yield cultivation techniques, the demand for seedlings. Therefore, the rapid propagation of Ginkgo biloba seedlings, ginkgo biloba has become a high yielding cultivation of the problem to be solved. From mid-July 1986 to early August 1986, we carried out the grafting test of green shoots of Ginkgo seedlings and achieved good results. The grafting survival rate of grafted seedlings was up to 91% in the second year of birth, and the highest graft survival rate of grafted seedlings in the first year was 72%.