Contamination of durum wheat lines kernels with Fusarium species and deoxynivalenol

Fusarium infection and deoxynivalenol (DON) contamination in seven durum wheat lines kernel (six domestic ZP 16, 34, 41, 74, 120, DSP 66, one international line Cimmyt 7817) during two harvest seasons (2015-2016) has been studied. The four species, F. graminearum, proliferatum, sporotrichioides, verticillioides, were identified 2015. A different structure of the population, which addition to sporotrichioides also comprised poae, semitectum, subglutinans, was 2016. graminearum predominant species kernels potential producer DON. other spp. isolated sporadically with a low incidence kernels. DON levels significantly affected by genotypes studied years these parameters negatively correlated. higher 2015 (75.86%) than 2016 (63.43%), while level (3.636 mg kg-1) compared (1.126 kg-1). Statistically, there 66 (73.00%) 120 (72.75%) genotypes. highest (3.854 Considering all treatments tested, mean 2.381 kg-1, 69.64%. ?ested showed susceptibility resulting high results obtained suggest importance using improved resistance head blight breeding programs for new cultivars.