Uman National University | today: 06/27/2025
| Author(s) |
Бугайов В. В., , , Бугайов В. Д., , , Полутін О. О., , , |
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|---|---|---|---|
| Category | The Agronomy | ||
| year | 2025 | issue | Issue 106 Part 1 |
| pages | 342-355 | index UDK | 633.2:631.559 | DOI | 10.32782/2415-8240-2025-106-1-342-355 (Link) |
| Abstract | Bromopsis inermis Leyss is one of the representatives of perennial cereal grasses. In cold regions, it is a common fodder plant among cereal crops, distinguished by its higher fodder value. Its ability to improve soil fertility is of great importance: due to the significant amount of root residues, it contributes to soil restoration and prevents erosion. The purpose of this work was to evaluate the lines of Bromopsis inermis by dry matter yield and seeds by their plasticity and stability. The following methods were used in the research process: field, laboratory – field and statistical (data processing using the programs «Statistica» and «Excel»). During 2022–2024, research was conducted to evaluate the lines of Bromopsis inermis by plasticity, stability of fodder and seed productivity 27 lines were analyzed, which were isolated from polycross offspring and 22 – lines by chemical mutagenesis of the grass stand of the first, second and third years of use depending on the hydrothermal conditions of the year. The most productive in terms of dry matter yield was characterized by line 3-37 with an indicator of 2.0 kg/m2. Lines (2-22, 4-64, 6-78, 19-155, 24-224, 25-238, 26-256) were noted with low plasticity (bi<1.0) and high stability (Si2 = 0.0). The highest seed yield was found in lines 5-74 and 16-134 with indicators of 80.04 g/m2 and 85.5 g/m2, respectively, and low plasticity (bi<1.0) and high stability (Si2 = 2.9 – 3.1) was characteristic of lines (20-182, 24-224). The dry matter yield in mutant lines (XM 4/20, XM 13/20, XM 14/20 and XM 15/20) was at the level of 1.7 kg/m2, with low plasticity (bi<1.0) and high stability (Si2 = 0.0) were noted in lines (XM 6/20, XM 8/20, XM 14/20). Mutant lines ХМ 16/20, ХМ 14/20, ХМ 7/20 were characterized by the highest seed yield from 75.0 to 78.7 g/m2, respectively, and low plasticity (bi<1.0) and high stability are characteristic of the line (ХМ 1/20). It is recommended to use the following lines for further breeding of synthetic varieties adapted to current climate change conditions: Lines with increased dry matter yield, low plasticity, and high stability: (2-22, 4-64, 6-78, 19-155, 24-224, 25-238, 26-256); Lines with high seed yield, low plasticity, and high stability: (20-182, 24-224). Mutant lines with increased dry matter yield, low plasticity, and high stability: (HM 4/20, HM 13/20, HM 14/20, and HM 15/20); Lines with high seed yield, low plasticity, and high stability: (HM 1/20). | ||
| Key words | Bromopsis inermis Leyss is one of the representatives of perennial cereal grasses. In cold regions, it is a common fodder plant among cereal crops, distinguished by its higher fodder value. Its ability to improve soil fertility is of great importance: due to the significant amount of root residues, it contributes to soil restoration and prevents erosion. The purpose of this work was to evaluate the lines of Bromopsis inermis by dry matter yield and seeds by their plasticity and stability. The following methods were used in the research process: field, laboratory – field and statistical (data processing using the programs «Statistica» and «Excel»). During 2022–2024, research was conducted to evaluate the lines of Bromopsis inermis by plasticity, stability of fodder and seed productivity 27 lines were analyzed, which were isolated from polycross offspring and 22 – lines by chemical mutagenesis of the grass stand of the first, second and third years of use depending on the hydrothermal conditions of the year. The most productive in terms of dry matter yield was characterized by line 3-37 with an indicator of 2.0 kg/m2. Lines (2-22, 4-64, 6-78, 19-155, 24-224, 25-238, 26-256) were noted with low plasticity (bi<1.0) and high stability (Si2 = 0.0). The highest seed yield was found in lines 5-74 and 16-134 with indicators of 80.04 g/m2 and 85.5 g/m2, respectively, and low plasticity (bi<1.0) and high stability (Si2 = 2.9 – 3.1) was characteristic of lines (20-182, 24-224). The dry matter yield in mutant lines (XM 4/20, XM 13/20, XM 14/20 and XM 15/20) was at the level of 1.7 kg/m2, with low plasticity (bi<1.0) and high stability (Si2 = 0.0) were noted in lines (XM 6/20, XM 8/20, XM 14/20). Mutant lines ХМ 16/20, ХМ 14/20, ХМ 7/20 were characterized by the highest seed yield from 75.0 to 78.7 g/m2, respectively, and low plasticity (bi<1.0) and high stability are characteristic of the line (ХМ 1/20). It is recommended to use the following lines for further breeding of synthetic varieties adapted to current climate change conditions: Lines with increased dry matter yield, low plasticity, and high stability: (2-22, 4-64, 6-78, 19-155, 24-224, 25-238, 26-256); Lines with high seed yield, low plasticity, and high stability: (20-182, 24-224). Mutant lines with increased dry matter yield, low plasticity, and high stability: (HM 4/20, HM 13/20, HM 14/20, and HM 15/20); Lines with high seed yield, low plasticity, and high stability: (HM 1/20). | ||