%0 Journal Article
%T Calcium and magnesium content in brier (Rosa canina L.) fruits at the
%A Andreea BRASOVAN
%A Vasilica M£¿NDROC
%A Ramona C£¿MPEAN
%A Ioan PETEAN
%J Analele Universitatii din Oradea, Fascicula Biologie
%D 2011
%I University of Oradea Publishing House
%X The present study is focused on the close relation between Ca and Mg content in the brier fruits with the soil of the Campul lui Neag sterile coal dump, which is in early formation processes from industrial entiantrosoil to a fertile soil. The minerals found in soil sample are: quartz, calcite, biotite, and potassium feldspar. Some of the soil particles are chemical inert (quartz) but calcite provide Ca2+ ions and biotite provides Mg2+ ions. The brier roots assimilate those ions despite of lack of humus of entiantrosoil. This interaction between brier roots and entiantrosoil facilitate on the long term the formation of a fertile soil. Chemical analysis of brier fruits feature Ca and Mg content in the reference range (Ca = 0.297 g Ca/100 g solid sample ¡À 5 %, and Mg = 0.212 g Mg/100 g solid sample ¡À 5 %). The calculated Ca extraction coefficient is 20% and Mg extraction coefficient is 16 % for the brier fruits growth on the dump soil. The available Ca amount is directly proportional to the calcite content, which is significantly increased comparative with biotite. The less amount of biotite conducts to a less extraction coefficient for Mg. This proves that dump soil is able to assure an optimal amount of Ca and Mg for the brier fruits growing. The lack of heavy metals in the dump site is a favorable assumption for human use of brier fruits. The brier wild crop growth on the sterile dump soil is suitable for home application (brier marmalade, depurative tea, etc¡­). The sterile dump soil rehabilitation prove to be a slowly process counting only on the brier interaction with mineral components. The actual state feature a good progress of dump rehabilitation. The process could be fastened by improving some natural fertilizing procedures. Finally a professional crop for industrial applications could be growth on the sterile dump site only with a proper soil fertilization.
%K Rosa canina
%K calcium
%K magnesium
%K coal dump rehabilitation
%U http://www.bioresearch.ro/bioresearch/2011-1/005-009-AUOFB.18.1-2011%20-%20BRASOVEAN%20A.-UBBCj.Ro.-Calcium%20and%20Magnesium.pdf