Field and laboratory based screening approach to identify resistance to dryland root rot complex in Turkey

Root, crown and foot root rots, including the complex of Crown Rot Fusarium (F. psuedogramiearum, F. culmorum) and Common Root Rot (Bipolaris sorokinana) are causing economic yield loss in many parts of the world where cereals predominate the cropping system and sub-optimal growing conditions and rainfed or limited irrigation practices are common. CIMMYT in collaboration with the Turkish Ministry of Agriculture have established an International field and laboratory screening program for identifying spring and winter wheat accessions with resistance to these root pathogens. This involves a 5 year field testing and greenhouse screening program. Furthermore, assessment of tolerance with the most promising lines is also occurring to identify accessions which combine resistance and tolerance to the dryland root rot complex. The strategy in place is described with reference to subsequent breeding and seed dissemination in addition to some of the most promising lines identified.