ASPECTS OF SELENIUM CONTENT IN WHEAT CROPS

The organic compounds of selenium and selenates are the most available for uptake by plants. Their presence in soil over a certain level (seleniferous soil)can lead to increase of selenium content in plants who grow on respective soils, and in conclusion if we are to consume these plants, toxicological phenomena can appear – acute or chronic at human body and animals (selenosis). This paper is focused on the South-Eastern part of the Romanian Plain, Central and South Dobrogea, where a study was done regarding low level of selenium in plants, these areas being characterized by a natural handicap - selenium deficiency. For this purpose, data regarding selenium total content in plant (wheat), determined through investigations, chemical methods and analytic techniques, are presented. Analytical data were statistically analyzed, determining the parameters of the clustering center (xmed, xg, Me, Mo) and the scattering parameter values (xmin, xmax, cv, σ)