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- W4385467029 abstract "Topicality. The requirements for modern winter triticale varieties include high grain yield and quality, as well as resistance to adverse environmental factors, i.e. high adaptability. Therefore, it remains important to develop varieties that combine the highest yield potential with genetic resistance to limiting factors. Purpose. To identify winter triticale breeding lines with high adaptability for use in breeding practice. Materials and Methods. The studies were carried out at the V. M. Remeslo Myronivka Institute of Wheat NAAS of Ukraine. As a standard, the Amur variety was used. We have examined 20 breeding lines. Accounting plot area was 10 m2, trial was repeated four times. In experiment, laboratory-field and mathematical-statistical methods were used. Results. In 2019/20-2021/22, contrasting meteorological conditions made it possible to evaluate and select breeding lines of winter triticale by adaptive potential. It was found that the yield, which actually characterises the genotype response to environmental growing conditions, was the highest (5.36 t/ha) in 2020/21 and the lowest (3.81 t/ha) in 2019/20. It was established that the breeding lines 22002 ( = 4.97 t/ha), 22008 ( = 4.88 t/ha), 22016 ( = 4.79 t /ha) had the best general adaptability in comparison with the Amur variety-standard, and they were included in the group with the highest indicators of maximum yield (ranks of 1–3). The coefficient of variation was characterized by an insignificant (7.24–7.66 %) and medium level of variability (12.54–16.65 %), which confirms a fairly high and stable genotypic component in the formation of plant productivity. Calculations of ecological plasticity made it possible to identify the lines 22015, 22004 (bi = 0.63), which significantly reduced the yield under limited growing con-ditions. It is explained by high resistance of these lines to adverse environmental factors. In terms of yield, the highest homeostaticity and breeding value were shown by lines 22004, 22015, and 22008. Conclusions. During the research, we have identified the breeding lines 22004, 22015, 22008, and 22002 with high adaptive potential, which can used as a source material for developing highly productive varieties in the Forest-Steppe of Ukraine. Key words: winter triticale, breeding lines, adaptability, yield, meteorological conditions" @default.
- W4385467029 created "2023-08-02" @default.
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- W4385467029 date "2023-01-01" @default.
- W4385467029 modified "2023-10-17" @default.
- W4385467029 title "Adaptive potential of winter triticale breeding lines (×Triticosecale Wittmack) in Forest-Steppe of Ukraine" @default.
- W4385467029 doi "https://doi.org/10.31867/2523-4544/0255" @default.
- W4385467029 hasPublicationYear "2023" @default.
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