TY JOUR TI TETRAPLOID BREEDING POPULATION IN THE CREATION OF A NEW ALSIKE CLOVER VARIETY KW alsike clover KW breeding population KW complex hybrid population KW winter hardiness KW green mass KW dry matter KW crude protein KW crude fiber KW seed yield JO Adaptive Fodder Production AU Piskovatskaya, R.G. AU Makaeva, A.M. AU Rekashus, E.S. PY 2020 IS 2020 PB Federal Williams Research Center of Forage Production and Agroecology