Following the localized stem rust epidemics in Ethiopia on the cultivar “Digalu” in 2013/14 (see report 23rd Dec 2013); continued, severe stem rust outbreaks have been observed in the 2014/15 main season. Once again the popular cultivar “Digalu” has been … Continue reading
Search Results for: "race analysis"
A new study entitled “Determination of Puccinia graminis f. sp. tritici races of wheat in Turkey” has been published in the Turkish Journal of Agriculture and Forestry. Dr Zafer Mert from the Central Research Institute for Field Crops (CRIFC), Ankara … Continue reading
Following the widespread distribution of rusts diseases observed in 2011 main season, a survey team co-led by Mr Bruce Mutari (Crop Breeding Institute) and Mrs Mutisi (Plant Protection Research Institute) carried out surveys throughout the key wheat growing areas of … Continue reading
stem rust samples collected from Afrikaskop, Eastern Free State, South Africa in Dec. 2010 and Birchenough, Eastern Zimbabwe in Sept. 2010 have been confirmed to be a new variant in the Ug99 lineage. The confirmed findings have just been published … Continue reading
Cereal rust surveys were undertaken by the National Plant Protection Centre, Department of Agriculture, Ministry of Agriculture and Forest, Semtokha, Thimpu, Bhutan and the Research and Development Centre, Bajo, Wangduephodrang in collaboration with the Durable Rust Resistance in Wheat (DRRW) … Continue reading
Several different systems exist for race nomenclature of stem rust and there is no single standard unified system. This meets the need of individual countries, but makes international comparison a difficult task. In a recent international survey of rust labs … Continue reading
Analysis undertaken by AAFC, Canada on samples collected by NARI, Eritrea in Oct. 2010 has confirmed the presence of Ug99 lineage races TTKST and PTKST in Eritrea. Wolday et al (2011) report the findings in the journal Plant Disease. Both … Continue reading
stem rust samples collected near Harare in Sept 2009 have been confirmed as race TTKSF, the presumed progenitor of Ug99. Analysis undertaken by the University of the Free State, South Africa and the USDA-ARS, Cereals Disease Lab, Minnesota, USA confirmed … Continue reading
Results of extensive lab tests of samples of stem rust have shown that the 2016 stem rust epidemics in Sicily were caused by a new, highly virulent variant of race TTTTF. The samples were collected during serious and unusual outbreaks … Continue reading
Rust surveys undertaken in Azerbaijan by Konul Aslanova and colleagues from the Azerbaijan Agricultural Research Institute of Crop Husbandry in May/June 2015. Of the 11 widely dispersed sites surveyed, stem rust was observed at 6 sites (55%). High or moderate … Continue reading