PhD thesis at College of Science-Basrah University to be discussed (Allelopathic effect of alcoholic and glycoside extract of oleander plant on the growth and development of Arabidopsis thaliana Columbia - 0) by  researcher (Inas Sabah Mohammed) include identification  the effect of alcoholic and glycoside extracts of oleander flowers on morphological, biochemical, anatomical and chemical characteristics of A. thaliana .The study concluded that the low concentrations of the extract stimulated some morphological measurements, and the high concentrations were discouraging, as well as the production of important compounds for the plant and it recommended to take advantage of Allelopathy from an economic and medicine.