Resistance of 'Chinese Spring' substitution lines carrying chromosomes from 'Cheyenne', 'Hope' and 'Lutescens 62' wheats to head blight caused by Fusarium culmorum

Fusarium head blight (FHB) is a worldwide serious disease of wheat, since m any graminaceous Fusarium species have the potential to produce mycotoxins in grain, which are harmful to animal and human health. Cultural and chemic al control measures prevent only partly the attack of Fusarium spp. The bre eding of resistant cultivars is unavoidable to reduce the risk of FHB epide mics. Series of substitution lines of single chromosomes from Cheyenne, Hop e and Lutescens 62 into Chinese Spring were investigated under artificial i noculation with Fusarium culmorum in order to illuminate the inheritance of resistance to FHB. Chromosomes 3B from Cheyenne and 5A from Lutescens 62 w ere found to have negative effects on both head blight symptoms and toleran ce. Several other chromosomes showed effects on single resistance mechanism s.