Analysis of Resistance to Fusarium Head Blight (FHB) in Winter Wheat and Evaluation of Genetics and Cultural Practices for FHB Mitigation
Analysis of Resistance to Fusarium Head Blight (FHB) in Winter Wheat and Evaluation of Genetics and Cultural Practices for FHB Mitigation
Fusarium head blight (FHB) caused by Fusarium graminearum is a fungal disease of wheat that can result in severe yield losses and contaminate grain with deoxynivalenol (DON). Wheat cultivars with different levels of FHB resistance were combined with fungicides application to control FHB. Results showed that foliar fungicide Prosaro™ combined with moderately resistant cultivars greatly reduced the risk of FHB. Integrating fungicide application with moderately resistant cultivars can be an effective strategy in controlling FHB. Quantitative trait loci (QTL) for resistance to FHB related traits were analyzed using a double haploid population. Four QTL associated with FHB resistance was detected on chromosomes 2B, 2D, 4D and 7A. The QTL on chromosome 2B and 4D were found to reduce multiple FHB-related traits and were more frequently detected than QTL on chromosome 2D and 7A. QTL on chromosome 2B and 4D could be valuable for improving FHB resistance in wheat.
- University of Manitoba Canada
Fusarium head blight, QTL, fungicide, FHB reisitance
Fusarium head blight, QTL, fungicide, FHB reisitance
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