Summary
This field trial characterised the grain quality of twelve domesticated Moroccan oat lines (Avena magna ssp. domestica) across three contrasting microclimate zones, demonstrating that environmental conditions and genotype significantly influence nutritional composition. Mean protein, fat, and dietary fibre contents were 23.1%, 8.38%, and 7.23% respectively, with several lines exceeding the 'Avery' control for protein and fibre. The study provides evidence that specific A. magna lines (AT3, AT5, AT6, AT13, AT15) offer elevated micronutrient density relative to conventional oat cultivars and other cereals, suggesting potential for addressing protein and micronutrient insecurity in cultivation zones.
Regional applicability
The study focuses on Moroccan growing conditions and microclimate zones not directly comparable to UK temperate environments. However, the genetic characterisation of Avena magna nutritional diversity and the methodology for assessing genotype-by-environment interactions could inform crop improvement strategies for oat cultivation in the UK, particularly if climate adaptation or crop diversification priorities emerge.
Key measures
Protein content (%), fat content (%), dietary fibre (%), β-glucan (%), iron (g/100 g DM), zinc (g/100 g DM), ash content, starch content; stability analysis of genetic versus environmental effects
Outcomes reported
The study evaluated grain nutritional composition (protein, fat, dietary fibre, β-glucan, iron, zinc) across twelve Avena magna domestica lines grown in three Moroccan locations. Results demonstrated substantial variability in key nutrients by genotype and site, with identified lines exceeding control cultivar performance.
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