核桃是我省分布广,数量大,栽培历史悠久的一种重要木本油料果树。为了迅速提高核桃的产量与质量,除提高管理水平外,自1974年以来开展了以核桃选种为中心的试验研究,1987年全省评选出了十个丰产性强,品质好,抗性强的优良单株。通过嫁接繁殖,建立良种采穗圃与良种园, Walnut is widely distributed in our province, a large number, a long history of cultivation of an important woody oil fruit trees. In order to quickly improve the yield and quality of walnut, in addition to improving the management level, experimental research centered on walnut seed selection has been carried out since 1974. In 1987, the province selected 10 high-yielding, good quality and strong resistance The fine single plant. Through grafting and breeding, the establishment of seed-picking garden and seed garden,