R.C. SHARMA, S.U. and (2007) “Seed yield losses in onion by purple blotch (Alternaria porri) and its management”, Indian Phytopathology, 60(3), pp. 370–372. Available at: https://epubs.icar.org.in/index.php/IPPJ/article/view/17222 (Accessed: 25 June 2026).