Study on Different Concentrations Effects of Lead Acetate on Ovule Developmental Stages on Eggplant (Solanum melongena L.)

Environmental pollution with heavy metals is increasing and lead is one of the most important pollutants of environmental. Pb not only affects plant growth and productivity but also enters into the food chain causing health hazards to man and animals. In this research Solanum melongena L. was selected and studied on ovule developmental stages of Eggplant, which is one of the main agricultural plants in Asia and Africa continent. For this aim, set this project as CRD design with 4 treatments including different concentrations of lead acetate 0mM, 3mM, 6mM and 9mM, were spread on the experimental plants. Then collect buds and flowers in different developmental stages and fixed in FAA 70, then subjected for developmental studies and studied with light microscopy after sectioning. Results of microscopically studies showed that lead treatment could influenced developmental staged of ovule. Degeneration of nuclei in embryo sac and changes in embryo sac include destroy of embryo sac, prevent of shaping embryo sac and plasmolysis in nucellus tissue.