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银杏春季插皮接是银杏的主要嫁接方法,但由于接穗顶部裸露,接穗容易失水,成活率不稳定。据观察,小砧成活率一般在30％～85％,大砧一般在60％～90％。为此,1987年以来采用了塑料膜条密封接穗顶部的插皮接(以下简称银杏封顶插皮接)方法,取得了良好的效果。3年共嫁接3619株,小砧成活率92％以上,大砧达98％以上。 材料与方法 1.1 砧木 小砧为地径1～2cm的实生银杏苗,大砧为胸径5～30cm的实生银杏树。 1.2 接穗 为江苏农学院和泰兴县的优良“佛指”
Ginkgo spring cutaneous access is the main method of grafting Ginkgo biloba, but because of scion top exposed, scions easily dehydration, the survival rate is not stable. It is observed that the survival rate of small anvil is generally 30% to 85%, large anvil generally 60% to 90%. To this end, since 1987 the plastic membrane seal scion top plug skin access (hereinafter referred to as the ginkgo cap plug skin access method, and achieved good results. 3 years, a total of 3619 grafts, a small anvil survival rate of 92% or more, a large anvil up to 98%. Materials and methods 1.1 rootstock small anvil for the ground diameter of 1 ~ 2cm of ginkgo seedlings, large anvil for the root diameter of 5 ~ 30cm ginkgo tree. 1.2 Scion for Jiangsu Agricultural College and Taixing fine “Buddha”