A severe, localised stem rust epidemic has broken out in southern Ethiopia during November-December 2013. The districts of Agarfa and Gasera in Bale zone are the most seriously affected, but some spread into other areas is now being reported. The … Continue reading
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New press release published on the CIMMYT web site A study just published in Science by scientists from the University of Minnesota, CSIRO, the University of Sydney, the University of Queensland, and CIMMYT shows that research to control the wheat disease known … Continue reading
Name Position Institute Email Doe Doe Program Director National Plant Protection Centre, Thimpu, Bhutan ddoe_chimi@yahoo.com Namgay Om Pathologist National Plant Protection Centre, Thimpu, Bhutan Om.namgay@gmail.com Sonam Dorji Scientist National Plant Protection Centre, Thimpu, Bhutan dorjisonam2010@gmail.com Sangay Tshewang Sr. Research Officer … Continue reading
Wheat stem rust (Puccinia graminis f. sp. tritici) is historically the most damaging disease of wheat. The disease has the capacity to turn a healthy looking crop, only weeks away from harvest, into nothing more than a tangle of black … Continue reading
Effective / Ineffective stem rust Resistance Genes The following table summarizes the effective and ineffective stem rust resistance genes for races in the Ug99 lineage (based on Singh et al., 2006). TTKSK (Ug99) TTKSF TTKST (Ug99 + Sr24) TTTSK (Ug99 … Continue reading
Status Summary: Ug99 Lineage – September 2021 Race TTKSK (Ug99) was the first known race of P. graminis f. sp. tritici with virulence to the stem rust resistance gene Sr31. It also possesses virulence to a wide range of resistance … Continue reading
Extensive wheat rust surveys were undertaken throughout the wheat growing regions of Iraq during May 2011. A total of 344 sites were surveyed using standard BGRI survey methodology. Yellow rust dominated the surveys, being recorded at 96 of the sites … Continue reading