TY CONF TI EFFICIENCY OF THE CORRELATION ANALYSIS AT THE FINAL STAGE OF SELECTION A COMMON VETCH KW common vetch KW sowing campaign KW competitive test of grades KW variability and correlations of attributes of efficiency KW number and intensity of correlations JO Multifunctional adaptive feed production AU IVSHIN, G.I. AU IVSHINA, V.V. PY 2024 PB Federal Williams Research Center of Forage Production and Agroecology