Evaluation location: Leningradskaja oblast', Russian Federation
The artificial screening on resistance to tuber late blight was made in Polish Institute of Plant Acclimatization (IHAR, Nlochov) by Methods of IHAR (resistance to viruses was made in collaboration with Dr. M. Khrzhanovska) and in VIR greenhouses and laboratories and All-Russian Institute of Plant Industry. Pushkin, Saint-Petersburg. LB scale: 9 (resistant) to 1 (susceptible).