Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51082#.VFMdsGfHRK0 Author(s) Asya Pencheva Dragoeva , Vanya Petrova Koleva , Zheni Dimitrova Nanova * , Mariya Zhivkova Kaschieva Affiliation(s) Faculty of Natural Sciences, University of Shumen, Shumen, Bulgaria . ABSTRACT Secondary metabolites in medicinal plants could lead to discovery of new classes of herbicides. Recently aromatic plants have gained interest as a source of allelopathic secondary metabolites. Origanum vulgare ssp. vulgare L. infusions in hot water are used in folk medicine and possess proved beneficial biological activity. Plant-to-plant variability of metabolites due to genetic heterogeneity is estab...
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