Russian Federation
Russian Federation
UDC 633.85
UDC 631.526.32
The article presents the results of studying collection samples of spring camelina in terms of yield and adaptability parameters in the conditions of the Middle Volga region. The studies were carried out in 2019-2023, which differed in the degree of moisture and temperature conditions. The main criterion characterizing the advantage of variety samples is yield, the quantitative values of which showed their fairly high stability and plasticity. The variability in yield over the years was insignificant and amounted to only 3.11-10.31%. The range of its variation was from 1.47 t/ha for variety sample k-4144 to 1.72 t/ha for sample k-4178. The highest seed productivity (1.71 and 1.72 t/ha) was noted for numbers k-4164 (Sweden) and k-4178 (Armenia), the increase relative to the standard variety Yubilyar was 0.09 and 0.10 t/ha. The environmental sustainability of the samples varied over a wide range from -0.12 to -0.36. The sample from Sweden k-4164 had the highest level of environmental sustainability (-0.12), genetic flexibility (1.72 t/ha) and stability index (0.55). A high degree of adaptability is characteristic of samples k-1357, k-4164 and k-4178, the adaptability coefficient of which was 1.04-1.07. The indicator of the level of stability of variety samples varied from 14.4% (k-4172) to 58.1% (k-4164). The collection numbers k-4178, k-4164 and k-1553 differed in the value of this indicator; the values of PUSS were 42.5-58.1%. According to homeostaticity, samples k-4164 (Hom=34.2), k-4178 (Hom=28.7), k-4155 (Hom=26.7) and k-1553 (Hom=27.3) were distinguished. In addition, these genotypes have the highest breeding value (Sc=1.49-1.59). The ratio of the genotype under study to the best one under given environmental conditions is shown by the measure of the superiority of the variety. The best indicator of this criterion was observed in number k-1357 (0.73). The samples k-4144 (5.03), k-4172 (3.79) and k-4063 (3.62) differed in the minimum values of the measure of superiority. A ranked assessment based on a set of indicators of resistance, stability and plasticity showed that samples k-4164, k-4178, k-1553, k-1357 and k-4175 have the greatest breeding value. They have a high degree of adaptive and productive potential and are able to minimize the consequences of unfavorable environmental conditions.
spring camelina, collection samples, productivity, environmental sustainability, adaptability, stability index, breeding value
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