Wheat Stem Rust Detection and Race Characterization in Tunisia.

Climate changes over the past 25 years have led to conducive conditions for invasive and transboundary fungal disease occurrence, including the re-emergence of wheat stem rust disease, caused by f.sp. (Pgt) in East Africa, Europe, and the Mediterranean basin.

Phenotyping Mediterranean Durum Wheat Landraces for Resistance to in Tunisia.

Durum wheat landraces have huge potential for the identification of genetic factors valuable for improving resistance to biotic stresses. Tunisia is known as a hot spot for Septoria tritici blotch disease (STB), caused by the fungus (). In this context, a collection of 3166 Mediterranean durum wheat landraces were evaluated at the seedling and adult stages for STB resistance in the 2016-2017 cropping season under field conditions in Kodia (Tunisia).

Characterization of Mediterranean Durum Wheat for Resistance to .

Tan spot (TS), caused by the fugus (), has gained significant importance in the last few years, thereby representing a threat to wheat production in all major wheat-growing regions, including Tunisia. In this context, we evaluated a Mediterranean collection of 549 durum wheat accessions under field conditions for resistance to over two cropping seasons in Jendouba (Tunisia), a hot spot for . The relative disease severities showed significant phenotypic variation from resistance to susceptibility.