Twenty-eight isolates collected from 14 cornplanting areas in Hebei Province were identified to be four Curvularia species,i.e.C.lunata(57.1%),C.clavata(17.9%) and C.eragrostidis(14.3%),C.intermedia(10.7%).The pathogenicity of C.lunata and C. intermedia was much stronger than C.clavata and C.eragrostidis after tested on 9 corn cultivars and inbred lines.Twenty-three primers were employed for RAPD analyses of the 28 isolates.Out of the 185 RAPD markers,142 polymorphic markers(P=76.8%) were obtained.Based on ...