自 1998年以来的 5年间 ,通过人工隔离诱导实现种核桃孤雌生殖 ,共获得孤雌生殖核桃 480多个 ,孤雌生殖频率达 8 17%～ 69 44 % ,且播种得到 15 5多株生长正常的实生苗 ,孤雌生殖核桃出苗率达 5 2 6%～80 0 0 %。植物生殖遗传学理论认为“来源于孤雌生殖的二倍体植株 ,其基因型应该是纯合的”。新疆早实核桃的早实性和孤雌生殖能力 ,在木本植物尤其高大乔木中都是罕见的 ,是极为珍贵的种质资源 ,为实现核桃品种遗传纯化奠定了物质基础。利用新疆早实核桃的早实 (当年开花 )性 ,开展核桃品种遗传纯化 ,可将在通常要经过 5～ 6个世代 (2 5～ 3 0年 )的人工自交才能获得的核桃遗传纯化周期缩短为 10～ 15年 ,而利用孤雌生殖则可缩短为 3～ 5年 ,可最大限度地缩短纯化周期。利用孤雌生殖开展核桃优良品种遗传纯化 ,将为林木遗传纯化开拓一条快捷、高效、实用的新途径 ,具有良好的应用前景 In the five years since 1998, parthenogenesis of walnut was induced by artificial isolation, more than 480 parts of parthenogenetic walnuts were obtained, the frequency of parthenogenesis was 81.79 to 44.44%, and more than 15.5 plants were sown Normal seedlings, parthenogenesis walnut germination rate of 526% ~ 80 0 0%. Plant reproductive genetics theory that “derived from parthenogenesis diploid plants, the genotype should be homozygous.” The early fruiting and parthenogenetic ability of early walnut in Xinjiang is rare in woody plants, especially in tall trees. It is an extremely precious germplasm resource, which lays the material foundation for the genetic purification of walnut varieties. Utilizing the early fruiting (flowering) nature of early-ripening walnut in Xinjiang to carry out genetic purification of walnut varieties, the genetic purification cycle of walnut, which can be obtained through artificial selfing of 5 to 6 generations (25 to 30 years) Shortened to 10 to 15 years, while the use of parthenogenesis can be shortened to 3 to 5 years, can minimize the purification cycle. Utilizing parthenogenesis to carry out genetic purification of fine varieties of walnut will open up a new efficient, practical and efficient way for tree genetic purification, which has a good prospect of application