Summary
Published in Plant and Soil in 2002, this review by Welch and Graham — two leading figures in biofortification research — examines the scientific basis and practical potential of plant breeding as a tool to address micronutrient deficiencies in human populations. The authors likely discuss genetic variation in micronutrient accumulation across crop genotypes, the role of soil-plant interactions in mineral uptake, and the complementary use of agronomic and breeding approaches. The paper is considered a foundational contribution to the emerging field of biofortification, situating crop improvement within a wider food systems and public health context.
UK applicability
Although not UK-specific, the principles are applicable to UK arable breeding programmes, particularly efforts to improve zinc and selenium concentrations in wheat given documented selenium insufficiency in UK soils and diets. The paper provides conceptual grounding relevant to UK crop improvement policy and initiatives such as those supported by BBSRC and the Rothamsted Research programme.
Key measures
Grain micronutrient concentration (mg/kg); bioavailability indicators; breeding selection criteria
Outcomes reported
The paper examines breeding approaches to enhance the concentration of key micronutrients — including iron, zinc, and selenium — in staple crops, and considers the potential public health implications of such strategies for populations reliant on plant-based diets.
Topic tags
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