TY JOUR TI Formation of the harvest and sowing qualities of spring wheat seeds, depending on different seed size and uniformity in the forest-of Kama of Volga steppe zone KW fraction KW seeds KW spring wheat KW yield. JO Vestnik of Kazan State Agrarian University AU Safin, A.. AU Serzhanov, I.. AU Shaykhutdinov, F.. PY 2013 IS 8 PB Kazan state agrarian University