INSTITUTO DE FISIOLOGIA VEGETAL
Unidad Ejecutora - UE
items from Germany: Fusarium head blight inducible resistance.
BÖRNER A, ARANA-CEBALLOS, A. BAKHSH, YU.V. CHESNOKOV, A.M. CASTRO ET AL.
A n n u a l W h e a t N e w s l e t t e r
Kansas State University
Lugar: Kansas; Año: 2014 vol. 60 p. 12 - 12
The ITMI mapping population was tested for Fusarium head blight (FHB) tolerance during five years of trials under Argentinean conditions, including inoculums prepared with 67 of the more frequent isolates. Types I, II, and V resistance were tested. Tolerant RILs were identified by their low incidence, severity, and higher 1,000-kernel weight. In the subsequent three years, these tolerant lines were subjected to treatments with biotic and hormonal defence inductors, prior to Fusarium inoculation in order to assess the presence of inducible mechanisms of resistance. One line resulted with highly inducible type-II resistance after pretreatment with Jasmonic acid, because this type of tolerance can be switched on before FHB infections, providing a high level of protection. The detection of inducible defences could be useful because these types of mechanisms could be included in commercial wheat production priming the plants and bringing on a more sustainable FHB control.