ASSESSMENT OF YIELD LOSSES CAUSED BY PURPLE BLOTCH DISEASE IN ONION (ALLIUM CEPA L.) AND ITS MANAGEMENT.Published in:Pakistan Journal of Phytopathology, 2014, v. 26, n. 2, p. 225By:ul Haq, Imran;Zaman, Zohaib;Habib, Amer;Javed, Nazir;Khan, Sajid A.;Iqbal, Mudassir;Ihsan, JavedPublication type:Article