walnut is a plant belongs to juglandaceae family. among 21 species, of thejuglans genus, the persian walnut (juglans regia l.) is recognized as the bestspecies. the main aim of the current research work was identification of geneticdiversity among persian walnut species in golestan province, iran. morphologicaltraits used as an approach to evaluate 96 trees which belonged to five nativepopulati...