为了推广无性繁殖油桐良种,改接、高接现有低产劣株桐树,我所1981年收集12个优良单株品种开始建造采穗圃。从1983年开始大量生产接穗,现每株3年生采穗树,每年可生产接穗50个,每亩可生产5000多个。枝条健壮、芽点饱满,有效接芽25000个以上。为当前油桐嫁接和改造低产林提供了物质基础。现将几年来的作法及经验总结如 In order to promote asexual propagation of tung tree, change the access, high access to the existing low-yielding inferior Tung, 1981, I collected 12 fine varieties of individual plant began construction. Since 1983, large-scale production of scion, now 3-year-old raspberry tree, annual production of scion 50 per acre can produce more than 5,000. Sturdy branches, buds full, effective access to more than 25,000 buds. The current tung tree for grafting and transformation of low-yielding forests provides the material basis. Now years of practice and experience summarized