TY JOUR TI Influence of weather conditions on the expression of economically valuable characteristics of alfalfa variety Vega 87 KW alfalfa KW variety Vega 87 KW varietal properties KW productivity KW dry matter KW leafiness JO Adaptive Fodder Production AU Stepanova, G.V. AU Zaycev, I.S. PY 2025 IS 2025 PB Federal Williams Research Center of Forage Production and Agroecology