The types of resistance to Fusarium head blight and deoxynivalenol content in the heads of different wheat germplasms

Fusariurn head blight (FHB) is a devastating disease of wheat. Utilization of FHB resistant resources to breed the resistant wheat is a potential strategy to control FHB. Studying the resistant type of resistant resources will be beneficial to breeding resistant wheat varieties. The resistance to FHB initial infection and spread of 9 wheat resistant resources were investigated in 2003 and 2004, and the content of deoxynivalenol (DON) after infection was also analyzed. The results showed that Wangshuibai, Sumai 3, Yangangfangzhu and Zhen 74-95 were resistant to both initial infection and spread. Wangshuibai was the best at two types of FHB resistance. The DON analysis showed DON accumulation in Wangshuibai and Fan 60096 was less than that in the other verities. Comparing infected spikelets and DON content in Wangshuibai/Annong 8455 population indicated that there were some correlations between them and that was influenced by the environment conditions.