Assessment of adaptability parameters in hulled oat germplasm accessions in terms of their yield in the environments of Kirov Province

Background.Studying the gene pool of a crop under specific soil and climate conditions makes it possible to predict breeding value germplasm, while its subsequent inclusion in process ensures development adaptable cultivars capable implementing their productive potential large-scale agriculture. Materials methods. Stability (Si2) plasticity (bi; PUSS), Ambient Condition Index (Ij), Homeostatic (Hom), Stress Resistance, (Is) were calculated for 12 hulled oat (Avena sativaL.) accessions at FARC North-East. Results.Accessions 2981 IG100720 (USA) k-15293 BORYNA (Poland) showed best stress resistance, highest genetic flexibility was observed (USA), 3007 IG100848 (Germany), 5330 ?SI 590/05, k-15178 ‘Begunok’ (Russia). Sources intensive-type oats: k-15330 CSI 590/05 (Russia) (bi= 1.36) k-15331 2167/03 1.60), identified higher yield values: 856 889 g/m2 improved growing 2017, 365 285 dry 2016, respectively. Medium-intensive 1.07), ‘Skrokolik’ (k-15321, Russia) 0.97) plasticity. The reference cv. ‘Krechet’ (Si2= 0.06) demonstrated high stability. Conclusion.Sources selected breeding: (Poland), with resistance plasticity, plastic sources k-15321 (Russia), stable varying environmental conditions.