%0 Journal Article %T Study of varieties of red clover different types of ripeness and ploidy %A Polyudina, R.I. %A Novoselov, M.Y. %K red clover, cultivar, heterosis breeding, polycross, mutagenesis, polyploidy, hybridization, selection, yield %J Adaptive Fodder Production %D 2019 %N 2019 %P 8 %I Federal Williams Research Center of Forage Production and Agroecology