Uman National University | today: 06/27/2025
| Author(s) |
Ryabovol Y.S., , postgraduate, Uman National University of Horticulture, Ukraine Сліденко С. І., , , |
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|---|---|---|---|
| Category | The Agronomy | ||
| year | 2025 | issue | Issue 106 Part 1 |
| pages | 74-81 | index UDK | 631.527.581.143:633.14 | DOI | 10.32782/2415-8240-2025-106-1-74-81 (Link) |
| Abstract | The successful selection of parent components of winter rye for heterosis is carried out on the basis of checking the combination capacity of the source material, which should be used to produce hybrids, that is, by hybridization of certain varieties or lines and testing of their offspring. The assessment of the source material by combination capacity is important in hybrids, since this feature determines the amount of heterosis. The combination ability of an individual line cannot be evaluated visually or indirect methods because the effects of its variation depend on the selection of pairs of hybridization, that is, the combination capacity of the line for each pair is determined in a specific crossing. The purpose of the work was to evaluate the breeding value of the created winter rye lines for analyzing the effects of overall combination capacity for productivity to create synthetic populations of culture. The research at the experimental areas of the Department of Genetics, Plant Breeding and Biotechnology of Uman NU during 2021–2023 was conducted. The general combining ability of the experimental components as a deviation of the average value of the trait in hybrids from a similar trait as a whole by the experiment was defined. With intraspecific hybridization of geographically distanced forms, a number of inbred lines of winter rye were created. Their analysis for the effects of overall combination capacity by productivity, made it possible to select five lines 1714-1, 1719-3, 1731-9, 1742-5, 1742, 1744-2 with high GCA. These materials are attached to the process of obtaining and testing synthetic cultures of culture. With the participation of these samples, a number of prospective combinations of crossing have been selected and test hybrids by the main performance indicators were analyzed. The best combinations of crosses 1625-6 x 1731-9 and 1625-6 x 1742-5 by yield, at the level of 7,4 and 7,7 t/ha were selected. Created materials uses in breeding programs for obtaining of hybrids of winter rye. | ||
| Key words | winter rye, samples, general combining ability, entrance material, hybrids F1, line, productivity | ||