Affiliation: | 1. Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana 141 004;2. Present address: Department of Plant Pathology, Kansas State University, Manhattan, KS 66506, USA;3. School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana 141 004, India;4. Corresponding author, E‐mail: nsbains@rediffmail.com |