TY JOUR TI THE BIORESOURCE COLLECTION OF PEAR (PYRUS L.) AT THE MAIKOP EXPERIMENTAL STATION OF THE FEDERAL RESEARCH CENTER OF N.I. VAVILOV INSTITUTE OF PLANT GENETIC RESOURCES: HISTORY OF FORMATION AND USE IN BREEDING KW biological resources KW pear KW Pyrus KW variety KW fruit breeding KW Maikop Experimental Station JO Ekosistemy AU Shapovalov, M.I. AU Bandurko, I.A. AU Cherchesova, S.K. PY 2024 IS 0 PB V.I. Vernadsky Crimean Federal University