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- Title
Combining ability analysis of Fusarium head blight resistance in western European wheat lines.
- Authors
Zwart, Rebecca S.; Muylle, Hilde; Van Huylenbroeck, Johan; Van Bockstaele, Erik; Roldán-Ruiz, Isabel
- Abstract
The inheritance of Fusarium head blight (FHB) resistance was investigated in eight western European wheat lines using a half-diallel of F1 crosses. The parents and F1 crosses were point-inoculated, with a highly aggressive isolate of Fusarium graminearum, in replicated field and glasshouse trials. Type II resistance was assessed by measuring the % FHB spread and % wilted tips. There was a good correlation between the two disease parameters, % FHB spread area under the disease progress curve (AUDPC) and % wilted tips AUDPC ( r = 0.86, P < 0.01). Correlation coefficients between the field and glasshouse environments were r = 0.46 ( P < 0.01) for % FHB spread AUDPC and r = 0.40 ( P < 0.05) for % wilted tips AUDPC. Both general combining ability (GCA) and specific combining ability (SCA) effects influenced the inheritance of FHB resistance, suggesting that in this set of parents both additive and non-additive (dominance or epistatic) effects influence the inheritance of type II FHB resistance. Highly significant GCA-by-environment ( P < 0.0001) and SCA-by-environment ( P < 0.005) interactions were also observed. Specific combinations of western European wheat varieties were identified with type II FHB resistance at a level equal to or more resistant than the winter wheat variety ‘Arina’.
- Subjects
EUROPE; WHEAT; FUSARIUM; PLANT diseases; CROP losses; CEREAL products industry; GREENHOUSE plants
- Publication
Euphytica, 2008, Vol 162, Issue 3, p449
- ISSN
0014-2336
- Publication type
Article
- DOI
10.1007/s10681-007-9611-3