1. Abdolmaleki P, Ghanati F, Sahebjamei H, Sabet Sarvestani A (2007) Peroxidase activity, lignification and promotion of cell death in tobacco cells exposed to static magnetic field. Envirmentalist 27:435–440
2. Adegbite AE, Sanyaolu EB (2009) Cytotoxicity testing of aqueous extract of bitter leaf (Vernonia amygdalina Del.) using the Allium cepa chromosome aberration assay. Sci Res Essay 4(11):1311–1314
3. Ayers RS, Westcot DW (1985) Water quality for agriculture, FAO irrigation and drainage paper, 29 Rev. 1
4. Bhatt AM, Canales C, Dickinson HG (2001) Plant meiosis: the means to 1 N. Trends Plant Sci 6:114–121
5. Bushberg JT, Seibert JA, Leidholdt EM, Boone JM (1994) The essential physics of medical imaging. William & Wilkins, Baltimore, pp 660-662