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The purpose of the research was to evaluate Avena sativa L. variety samples by grain yield and adaptability parameters under conditions of the Kirov region. Ten variety samples of oats and standard variety ‘Krechet’ served as a material of this research. The studies were carried out in 2019–2021. Trial plots were located on the experimental fields of Falenskaya Breeding Station – branch of FSBSI “Federal Agricultural Research Center of the North-East named after N. V. Rudnitsky”. The agro-climatic conditions varied significantly during the years of research. On average, over the years of research, variety samples ‘15465 Zhorga’ and ‘k-4173 353 AC M5’ were the most productive ones, since they formed a high yield – 590 and 575 g/m2, respectively. The strongest influence on the formation of A. sativa yield was exerted by factor “year”– 83.84 %. During the years of research, index of environmental conditions (Ii) varied from –221 to +225. High resistance to stress was noted in cultivars ‘15317 AСOT’, ‘15465 Zhorga’, ‘k-4173 353 AC M5’ (from –0.64 to –0.73 g/m2). We identified variety samples of intensive type responsive to changes in environmental conditions: ‘15394 SW Tugerborg’ (bi=1.25), ‘15429 Cwal’ (bi=1.34), ‘15291 HETMAN’ (bi=1.21). Other variety samples showed a weak reaction to changes in environmental conditions (bi=0.73-0.86). High general adaptive ability (GAA) was noted in variety samples ‘15465 Zhorga’, ‘15394 SW Tugerborg’, ‘15420 Cwal’, ‘k-4173 353 AC M5’ (GAAi= from 51 to 29 g/m2). As a result of the analysis based on the factor “yield”, we identified variety samples with the most optimal set of adaptability: ‘15465 Zhorga’ (SAAi= 190; Sgi= 32.2; Kgi= 0.73), ‘4173 353 AC M5’ (SAAi=177.9; Sgi= 30.9; Kgi= 0.64). High indicators of the selection value of genotypes (SVG) were noted in variety samples ‘1465 Zhorga’ (SVGi = 365.45), ‘k-4173 353 AC M5’ (SVGi = 365.08), ‘k-3940 Baiyan N 0.14’ (SVGi = 322.43). Correlation analysis showed a reliable correlation of yield with general adaptive ability (r=0.99). For further work in adaptive breeding, variety samples ‘15465 Zhorgа’ and ‘k-4173 353 AC M5’ are of interest to breeders. |
