ABSTRACT
Attempts to control Fusarium head blight (FHB) in wheat and barley ha ve mainly consisted of using resistant cultivars and/or spraying fungicides. The efficacy of chemical control depends on the potency of fungicides, time of application, and deposition on the infection sites. The objective of this study was to determine the relationship between presence of anthers and FHB. The e xperiment was conducted in the field in two sowing periods to assess anthesis duration, anther size, and infection in partially and fully exserted anthers . Incidence of FHB in spikes was not explained based only on the presence of partially exserted anthers in infected spikelets. Pampeano and CEP 00-59 were the least susceptible wheat cultivars, while CD 114 showed the highest incidence in spikes. Occurrence of FHB was, but not exclusively, related to anthesis duration, anther size, and presence of partially exserted anthers. All these factors may be involved in the infection of spikes.
Keywords
Fusarium graminearum
;
Gibberella zeae
;
Hordeum vulgare
;
Secale cereale
;
Triticum aestivum
;
Triticum secalotricum