Variation of some physical and chemical quality traits of Moroccan domesticated tetraploid oat lines of <i>Avena murphyi</i> Ladiz

Abstract

A potential in improving nutrition and health is the consumption of high balanced whole grains. A breeding program was launched by the National Institute for Agricultural Research (INRA-Morocco), aiming to develop new domesticated tetraploid oat lines of Avena murphyi Ladiz., with high nutritional benefits. A sequence-based diversity study was conducted on ten tetraploid oat lines of A. murphyi to shed light not only on the importance of domesticating wild oat species for crop improvement but also to highlight the nutritional traits of those oat lines. In this study, we assessed the lines for some grain nutritional traits, such as groat contents of proteins and lipids as well as ash, fiber fractions, carbohydrates, and minerals.The obtained results showed a wide range of chemical contents among lines. The results revealed a high significant difference (P < 0.001) in the groat contents of proteins (11.46–15.12%), fat (4.14–10.14%), carbohydrates (48.68–57.38%), and ash (2.71–5.18%). Analysis of total fiber fractions (NDF, ADF, ADL and CF), showed the presence of significant differences between the assessed lines. The lines A. murphyi 8 and 9, recorded the highest groat protein contents of 15.12% and 13.66%, with an interesting macroelement profile, mainly magnesium and phosphorus, and iron and manganese as minor mineral profile.Due to their biochemical composition, Moroccan domesticated tetraploid oat lines of A. murphyi offer many opportunities to improve oat cultivation in Morocco and serve as an excellent raw material for foodstuffs formulation.