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为加速核桃良种化进程,山东省果树研究所受林业部委托,于1981～1985年间在泰安本所试验场建立了以元丰品种为主的核桃良种采穗圃。五年间共栽植幼龄砧木984株,栽植嫁接成苗100株,就地多头高接成龄实生砧木460株次,累计成活约1500头,3200穗,自1983年起穗条自给有余开始外调,至1986年春起年提供接穗能力2万条,达到原设计要求。结合建园。对核桃春季室外枝接为主的应用技术进行了多方面的验证和完善,积累了建立较大规模采穗圃的综合经验。兹将材料归纳整理如下:
In order to speed up the process of walnut breeding, the Institute of Pomology of Shandong Province, commissioned by the Ministry of Forestry, established the walnut seed breeding center mainly in Yuanfeng during 1981 ~ 1985. In the five years, a total of 984 young rootstocks were planted and 100 grafted seedlings were planted. In total, there were 460 high-yielding rootstocks with a total of about 1500 heads and 3200 spikes. Since 1983, Until the spring of 1986 to provide scion ability 20000, meet the original design requirements. Combination of building garden. The walnut spring branch of the main application of outdoor technology in many aspects of validation and improvement, and accumulated a large-scale mining sprouts comprehensive experience. Materials will be summarized as follows: