Abstract—The adaptability and stability in productivity of nine cultivars and lines of covered oats were studied in parallel competitive tests in two ecological points of the Kirov region (Kirov city and settlement Falenki) for their perspective use in production. The index of environment conditions (I) changed in 2018 from a negative indicator in Kirov (–10.50) to a positive one (3.86) in Falenki. In 2017, it amounted to 3.39 and 3.26, respectively. Perspective lines of the intensive type I-4592 and I-4808 having average productivity of 64.4 and 63.8 c/ha and sympathetic for change of environment conditions in a section of years and ecological points (bi = 1.59 and bi = 1.37; \(S_{i}^{2}\) = 21.58 and \(S_{i}^{2}\) = 9.78) were selected. The productivity of the I-4808 line was 6.0 c/ha higher than the standard productivity. It showed higher stress resistance and stability of productivity compared to the I-4592 line and was transferred to the state test as a Falenets cultivar. A wide range of adaptive features and resistance to stress factors were recorded for the perspective line 2h12o at high average productivity (61.6 c/ha), regression coefficient near to 1 (bi = 0.94), and high genetic flexibility ((Ymin + Ymax)/2 = 60.2 c/ha). Sapsan, Medved, and Berber cultivars belong to the semi-intensive genotypes capable to form productivity stable by years. Significant positive correlations between productivity and genetic flexibility (r = 0.93), between coefficient of regression and indicators of variation (r = 0.90) and stability (r = 0.92), and insignificant positive correlations with variance of stability (r = 0.09) were established.
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Batalova, G.A., Tulyakova, M.V., Zhuikova, O.A. et al. Adaptive Potential for Perspective Lines and Cultivars of Covered Oats Bred in the Federal Agricultural Scientific Center of the Northeast. Russ. Agricult. Sci. 46, 203–206 (2020). https://doi.org/10.3103/S1068367420030039
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DOI: https://doi.org/10.3103/S1068367420030039