TY JOUR TI NEW VARIETY OF SPRING RAPESEED 'VELES' KW spring rapeseed KW chemical mutagenesis KW variety KW fat KW protein KW fiber KW seed yield JO Adaptive Fodder Production AU Volovik, V.T. AU Shirokova, A.V. AU Sergeeva, S.E. AU Korovina, L.M. AU Leonidova, T.V. AU Krutius, O.N. PY 2021 IS 2021 PB Federal Williams Research Center of Forage Production and Agroecology