1. Department of Plant Physiology, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, India
2. Department of Botany, Yezin Agricultural University, Nay Pyi Taw, Myanmar (Burma)
3. Department of Botany, Maharaja Agrasen Mahavidyalaya, M.J.P. Rohilkhand University, Bareilly, India