Koleosho, B.Ikotun, T.Faboya, O.2023-05-232023-05-231987Phytoparasitica 15(4), 1987. Pp 317-323ui_art_koleosho_role_1987http://ir.library.ui.edu.ng/handle/123456789/8173en-USThe Role of Oxalic Acid and Polygalacturonase in The Pathogenicity of Pythium Aphanidermatum On Different Cowpea VarietiesArticle