Moniliformin Accumulation in Kernels of Triticale Accessions Inoculated with Fusarium avenaceum, in Poland

Twelve Polish winter triticale cultivars and 03 doubled haploid lines "DH# "derived from the cv[ Lasko line SZD 255 hybrids# were inoculated with Fusarium aven! aceum isolate ATCC 53340\ mycotoxin moniliformin "MON# producer to evaluate their susceptibility to Fus! arium head blight "FHB#[ Chemical analysis revealed MON accumulation in kernels of all inoculated cultivars in three consecutive years with the following averages and ranges] 0[49 mg:kg "9[36 1[56 mg:kg# in 0885\ 1[52 mg:kg "9[00 7[03 mg:kg# in 0886 and 9[14 mg:kg "9[96 9[36 mg:kg# in 0887[ Cultivar Malno kernels accumulated a low level of MON in all 2 years of the experiment[ In most of the genotypes examined the reaction to the pathogen and MON content changed signi_cantly from season to season[ DH lines accumulated on average 1[51 and 9[74 mg:kg of MON in 0886 and 0887\ respectively[ Yield parameter reductions "0999 kernel weight\ kernel number per head and kernel weight per head# were higher in 0886 than in 0887[ The correlation coe.cient forMON content:Fusarium damaged kernels percentage was 9[428 in cultivars and 9[437 in the DH lines[ This is the _rst report of FHB of a segregating population in triticale