Ecological engineering in agroecosystems: selenium enrichment of spring soft wheat under the conditions of Northern Mongolia


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DOI:

https://doi.org/10.32523/2616-6771-2025-152-3-222-233

Keywords:

biofortification, spring wheat, selenium (Se), iodine (I), foliar feeding

Abstract

The article presents a comprehensive analysis of the influence of selenium and iodine micronutrients on the growth and development indicators of spring soft wheat (Triticum aestivum L.). Field experiments were conducted to study the effect of sodium selenite, sodium selenate and potassium iodide on the biometric parameters and yield of the crop. The results demonstrate a differentiated response of plants to the application of various forms and doses of trace elements as fertilisers. Sodium selenite showed the most pronounced positive effect, ensuring stable yield by increasing plant density, despite a decrease in individual ear productivity. A direct correlation has been established between the concentration of selenium in selenite and sodium selenate solutions used for foliar application and its content in grain (r = 0.99). When sodium selenate was used, a more intense accumulation of selenium was observed (coefficient b = 80.23) compared to selenite (b = 44.94). At the maximum concentration of selenium in the sodium selenite solution (0.01%), the content of the microelement in wheat grain increased 6.4 times compared to the control.

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References

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Published

2025-09-30

Issue

Section

Ecology