Authors:Farzaneh Garousi, Béla Kovács, and Szilvia Veres
, J. L. , Tovey , M. , Tucker , M. , White , P. J. , Young , S. D. , Zhao , F.-J. ( 2010 ) Selenium biofortification of highyielding winter wheat ( Triticum aestivum L.) by liquid or granular Se fertilisation . Plant. Soil. 332 , 5 – 18
An extensive investigation of elemental levels in cereals and their cultivation soils has been going on across the main production
areas of mainland Portugal, with a view to an eventual biofortification of major cultivars through agronomic practices. Cereals
are an obvious choice as primary vehicles for food-supplementation programs, especially in countries where they definitely
weigh in the dietary intake (like Portugal), and regions whose geographical and/or pedological features may account for nutrient
deficiencies in typical diets. Mature rye plants (Secale cereale L.; roots and grains) and local soils were collected in the summer of 2009 from two regions of northern Portugal, and put
through k0-standardized, instrumental neutron activation analysis (k0-INAA). Overall, the results (elemental concentrations, enrichment factors, transfer coefficients) seem to confirm an efficient
uptake of elements from soil and their translocation to the aerial parts of the plants, notably to the ones that really matter
in human nutrition (grains).
To investigate the nutritional characteristics of purple wheat, 41 kinds of nutrients were measured in seven purple wheat lines using one white wheat variety as control sample. Correlation analysis of nutrient contents was performed. Results show that the amounts of 40 kinds of nutrients in the purple wheat lines are higher than those of the control. For example, the amounts of sodium (Na) and manganese (Mn) in purple wheat are higher than the standards by 311.77–2017.65% and 548.15–733.33%, respectively; the contents of β + γ-vitamin E is higher than the standards by 300%; and zinc (Zn), iron (Fe), magnesium (Mg), and potassium (K) are all higher than the control by 100%. Therefore, the purple wheat has obvious advantages in terms of the nutrient contents. Correlation analysis studies show that protein has significant positive correlations with Glu, Mo, Pro, Fe, Tyr and Ile. Anthocyanin has significant positive correlations with Mo and Glu, and significant negative correlations with free Trp and Ca. Carotenoid has significant positive correlations with His, Lys, Val, Leu, Arg, Gly and I, and significant negative correlations with Ca. This paper is a first report on comprehensive nutrients of several purple wheat lines. Our results suggest that purple wheat is rich in nutrients and there are many significant correlations among different nutrients. The valuable information is very useful in biofortification breeding and functional food development.