Differentiation of potato cultivars experimentally cultivated based on their chemical composition and by applying linear discriminant analysis

► Chemical composition of some traditional cultivars of potatoes were published in the first time. ► The genetic characteristics related with the cultivar significantly influenced the chemical composition of the potato. ► Differences in the chemical composition permit to select the potato cultivars with the highest nutritional value. ► The cultivation soil affects the chemical composition of potatoes, which allows identifying their geographic origin. ► Linear discriminant analysis applied differentiated the potato samples according to cultivar and growing location.