%0 Journal Article %T RESULTS OF ENVIRONMENTAL TESTS OF NEW HYBRIDES OF CORN IN EXTREME CONDITIONS OF 2017 %A Shaytanov, O.. %A Tagirov, M.S. %A Karimov , K.. %K maize, early hybrids, environmental tests, phenological observations, cold resistance, air temperature, duration of germination. %J Vestnik of Kazan State Agrarian University %D 2018 %N 13 %P 6 %I Kazan state agrarian University