Walnut(Juglans regia L.)is an important nut and an oil-woody plant,Juglans regia L. is the traditional nut food of the world, which contains many species of acid,fat,unsaturated fatty acid, carbohydrates,and Vitamin B,C and E. The study and evaluation of genetic diversity of germplasm resources is important for exploring the origin, spread, evolution of Juglans regia L., utilization of Juglans regia L. ,germplasm resource, as well as instructing the innovation of excellent germplasm of Juglans regia...