PARAMETERS OF ECOLOGICAL PLASTICITY OF BREEDING SAMPLES OF RUSSIAN WILDRYE UNDER THE CONDITIONS OF THE SOUTH OF CENTRAL SIBERIA

Studies were carried out in 2020-2022. in the breeding nursery "FGBNU NIIAP Khakassia." The most favorable conditions for the formation of green mass yield were the medium index (Ij = + 15) in 2022, the lines AS 14 and AS 15 were highlighted. According to ecological plasticity (bi) and stability (Si ²), a sample of AS 15 (bi = 1.8; Si ² = 59.1) was outstanding. Stress resistance and genetic flexibility has an AS 1 line (stress resistance - -27.2; genetic flexibility - 76.4). Based on experimental data, a selection material with high green mass productivity, ecological plasticity and stability, resistant to soil-climatic conditions in the south of Central Siberia, was obtained.