Reaction of wheat cultivars and advanced lines to Fusarium culmorum and F. pseudograminearum under field and greenhouse conditions

In recent years, due to monoculture of wheat, crown and root rot diseases have become more prevalent and important in Iran. These diseases are caused by Fusarium culmorum and F. pseudograminearum.Using resistant cultivars is the most efficient method to control these diseases. This research was conducted to evaluate resistance level of 70 cultivars/advanced lines of bread wheat and durum wheat obtained from CIMMYT, SPII and DARI, to a mixture of five F. culmorum isolates in Karaj and Kermanshah locations in field conditions. These experiments were conducted based on RCBD with four replications. In addition, the reactions of these genotypes were evaluated against F. pseudograminearum and F. culmorum at the seedling stage in greenhouse conditions based on RCBD with 5 replications. The results of two years field experiments in Karaj showed that cultivars/lines: C-85D-9, S84-14, N85-5, Croc- Sonmez, 1/AE, Aquarosa (224)//Opata, M-85-7, Burbot-6, C- 87-18 and Turcan#3 had good level of resistance. The results of two years field experiments in Kermanshah showed that cultivars/lines: 2-49, Gala, Chiry A.3, Burbot-6, WS-85-10, C-87-11 and C-87-18 had good level of resistance to F.culmorum. The cultivar Burbot-6 from CIMMYT and advanced line C-87-18 from SPII had a very good level of resistance to both fungal species in field and greenhouse conditions in both locations. These genotypes have potential to be used directly by farmers in the infected areas of Iran or incorporated to the breeding programs at the national or international level.