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The purpose of the research was to study the inheritance of the trait of oleic acid content in oil of winter rapeseed seeds in reciprocal F1 hybrids. We carried out the research in 2019-2020 under field and greenhouse conditions. We used two high oleic lines for hybridization: BH 1844 (82.2 %) and BH 1848 (83.0 %), and two high-yielding lines from the varieties Sarmat and Selegor with a standard level of oleic acid of 62.1 and 60.5 %, respectively. Analysis of the C18:1 content of F1 hybrids, under field conditions, showed that in the case of crossing high oleic lines BH 1844 and BH 1848 with high-yielding lines from the varieties Sarmat and Selegor, five of eight combinations had an intermediate type of inheritance (h/d from -0.10 to 0.28). In the remaining three cases there was incomplete dominance of the trait (h/d from 0.56 to 0.64). We carried out similar studies in the phytotron greenhouse complex. On average, the content of C18:1 in the greenhouse conditions was 5.5 % lower in the high oleic lines, 0.3 % lower in the variety Sarmat, and 0.9 % lower in the variety Selegor, as oleic acid is synthesized less intensively at low air temperature. All the combinations of the greenhouse conditions showed an intermediate type of inheritance (h/d from -0.43 to 0.48). With this type of inheritance, lines combining high yield with high content of oleic acid can be isolated in the future.

iop conference series. earth and environmental science

Study on the inheritance of oleic acid content in reciprocal F<sub>1</sub> hybrids of winter rapeseed at V.S. Pustovoit All-Russian Research Institute of Oil Crops

Study on the inheritance of oleic acid content in reciprocal F1 hybrids of winter rapeseed at V.S. Pustovoit All-Russian Research Institute of Oil Crops

Study on the inheritance of oleic acid content in reciprocal F₁ hybrids of winter rapeseed at V.S. Pustovoit All-Russian Research Institute of Oil Crops