Summary
This field trial investigated optimisation of foliar selenium fertilisation in wheat (Triticum aestivum L.) to enhance grain selenium concentration, a key micronutrient for human health. The authors evaluated the relative efficacy of different selenium forms, application timings across phenological stages, and dose rates. Findings suggest the potential for agronomic biofortification of wheat grain through tailored foliar selenium management, with implications for selenium-deficient regions and crop nutritional quality.
UK applicability
UK wheat production operates in a selenium-adequate soil environment, limiting the direct relevance of selenium biofortification strategies. However, the methodological approach to optimising foliar micronutrient delivery and phenological timing could inform broader agronomy for other micronutrients of interest (e.g. zinc, iodine) in UK cereal systems.
Key measures
Grain selenium concentration, selenium accumulation rate, application timing, selenium form (selenate/selenite), application dose, grain yield
Outcomes reported
The study examined how foliar selenium application at different growth stages, chemical forms, and doses affects selenium accumulation in wheat grain. It assessed selenium bioavailability and uptake efficiency under varying agronomic conditions.
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