Department of Vegetable Science, Narendradev University of Agriculture & Technology, Kumarganj, Faizabad 224 229, Uttar Pradesh.
*Corresponding author's present address: Division of Environmental Sciences, Indian Agricultural Research Institute, New Delhi 110012, E-mail: vinaysoil@yahoo.com.
**Corresponding author's present address: Department of Genetics and Plant Breeding, NDUA&T, Kumarganj, Faizabad, Uttar Pradesh.