%0 Journal Article %T PRODUCTIVITY OF SELECTED HYBRIDS OF APPLE-TREE OF TATAR SCIENTIFIC RESEARCH INSTITUTE OF AGRICULTURE SELECTION %A Osipov, G.. %A Osipova, Z.A. %K apple-tree, selective hybrid, variety, productivity, yield, temperature, precipitation, variability. %J Vestnik of Kazan State Agrarian University %D 2018 %N 13 %P 5 %I Kazan state agrarian University