TY JOUR TI PRELIMINARY VARIETY TESTING OF NEW PERSPECTIVE, ECONOMICALLY VALUABLE HYBRIDS OF GRAIN CROPS OF SELECTION OF YAKUT RESEARCH INSTITUTE OF AGRICULTURE IN THE III FARMING ZONE OF YAKUTIA KW hybrid KW variety testing KW wheat KW oats KW barley KW yield KW vegetation period KW lodging KW productivity JO Bulletin of KSAU AU Konstantinova, I.N. AU Vladimirova, E.S. PY 2017 IS PB Krasnoyarsk State Agrarian University