Abstract
In 2018–2022 under the conditions of the southwest of Sverdlovsk oblast, an assessment of adaptability has been carried out, as well as the selection of promising samples of oats for the creation of productive varieties. The study has been conducted on 50 collection samples; the Sprint 2 variety bred by the Ural Federal Agrarian Research Center has been used as a standard. The following methods have been used to determine the parameters of environmental adaptability: regression coefficient and stability parameter (according to S.A. Eberhart and W.A. Russell), stress resistance and genetic flexibility (according to A.A. Goncharenko), adaptability (according to L.A. Zhivotkov and V.A. Dragavtsev), and ecological plasticity (according to A.A. Gryaznov). Under favorable growing conditions of 2018 and 2019 (Ij = 117.5 and 84.3, respectively) the average yields of samples were 669.4 and 636.4 g/m2. High grain yield was observed in samples of domestic selection 15335 SIG (600.2 g/m2) and 15338 Creole (601.4 g/m2), which was 122.6–123.8 g more than in the standard. The selected varieties with increased stress resistance ((Ymin – Ymax) = –300 to –314) are 14 800 Belle (United States), 15181 Stayer (Russia), and 15352 Haga (Norway); with compensatory ability ((Ymin + Ymax)/2 = 507–526), 14792 Bajka (Poland), 15281 120 h 2106 (Russia), and 15335 SIG (Russia); with high rates of adaptability (AС = 106.6–111.1%) and ecological plasticity (EPI = 1.07–1.11), 14792 Bajka (Poland), 15352 Haga (Norway), 15338 Creole (Russia), and 15335 SIG (Russia); stable in terms of relative stability of the trait (\(S_{j}^{2}\) = 0.0452–0.0624), 15181 Stayer, 14597 Sprint 2 (Russia), and 14800 Belle (United States); sensitive to growing conditions (bi = 1.14–1.40), 15122 Fax (Belarus), 15374 Galaxy (Germany), 15376 KWS Contender (Germany), 15292 Farys (Poland), and 15315 Acton (Russia); adaptive samples with the lowest sum of ranks, 15345 Baiche (Kazakhstan), 15338 Creole (Russia), 15122 Fax (Belarus), and 15376 KWS Contender (Germany).
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Funding
The studies has been carried out on the basis of the Ural Federal Agrarian Research Center, Ural Branch of the Russian Academy of Sciences, on the topic “Fundamental Principles for Managing the Breeding Process for Creating New Genotypes with High Economically Valuable Traits of Productivity and Resistance to Bio- and Abiostresses (150)” on the topic “To Create a New Breeding Material for High-Yielding Oats, with High Adaptive Potential” (0772-2014-0010).
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Translated by T. Kuznetsova
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Kardashina, V.E., Demidova, O.V. Productivity and Adaptability of the Collection Samples of Hulled Oats under Conditions of Sverdlovsk Oblast. Russ. Agricult. Sci. 49 (Suppl 2), S282–S288 (2023). https://doi.org/10.3103/S1068367423080098
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DOI: https://doi.org/10.3103/S1068367423080098