TY JOUR TI AGROBIOLOGICAL ESTIMATION OF VARIETY-ROOTSTOCK COMBINATIONS OF THE APRICOT IN THE CENTRAL REGION OF RUSSIA KW apricot KW variety KW clonal rootstock KW variety-rootstock combinations KW growth KW tree KW efficiency KW fruit KW yield KW incompatibility JO Agrarian Bulletin of the AU , .. PY 2018 IS 171 PB Ural State Agrarian University