Abstract
ABSTRACT Fusarium head blight of wheat (Triticum aestivum), caused by the fungus Gibberella zeae, is a floral infecting disease that causes quantitative and qualitative losses to winter cereals. In Brazil, the sanitary situation of wheat has led to research in order to develop strategies for sustainable production, even under adverse weather conditions. To increase the knowledge of the relationship among the presence of anthesis, the infectious process, the disease progress and the saprophytic fungi present in wheat anthers, studies were conducted in the experimental field of University of Passo Fundo (UPF), using the cultivar Marfim, in the 2011 growing season. The disease incidence in spikes and spikelets was evaluated. The presence of exserted anthers increased the spike exposure time to the inoculum. The final incidence of fusarium head blight, in the field, was dependent on the presence of exserted anthers. The disease followed an aggregation pattern and its evolution increased with time, apparently showing growth according to secondary cycles. The fungi isolated from exserted anthers (Alternaria sp., Fusarium sp., Drechslera spp. and Epicoccum sp.) did not compete for the infection site of fusarium head blight in wheat, not interfering with the incidence of F. graminearum.
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Claims 5
Claim · model-written summary
Exserted anthers increased spike exposure to inoculum.
Not reportedTaxon
Verbatim
e0“The presence of exserted anthers increased the spike exposure time to the inoculum.”
t0“wheat”
Claim · model-written summary
Final field incidence of fusarium head blight depended on exserted anthers.
- Taxon
- wheat
Triticum aestivumt0 - Organ / stage
- exserted antherse0
- Outcome
- final incidence of fusarium head blighte0
- Setting
- fielde0
FusariumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The final incidence of fusarium head blight, in the field, was dependent on the presence of exserted anthers.”
t0“fusarium head blight in wheat”
Claim · model-written summary
The disease showed an aggregation pattern.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- aggregation patterne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease followed an aggregation pattern and its evolution increased with time, apparently showing growth according to secondary cycles.”
t0“fusarium head blight in wheat”
Claim · model-written summary
Disease evolution increased with time and appeared to follow secondary cycles.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- diseasee0
- Direction
- increasede0
- Qualifier
- apparently showing growth according to secondary cyclese0
Not reportedOrgan / stageSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease followed an aggregation pattern and its evolution increased with time, apparently showing growth according to secondary cycles.”
t0“fusarium head blight in wheat”
Claim · model-written summary
Anther fungi did not compete for the infection site or alter F. graminearum incidence.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- exserted antherse0
- Interactor
- F. graminearum
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=60)
Fusarium graminearume0pathogen - Outcome
- incidence of F. graminearume0
- Direction
- not interferinge0
- Qualifier
- Alternaria sp., Fusarium sp., Drechslera spp. and Epicoccum sp.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=500)
Verbatim
e0“The fungi isolated from exserted anthers (Alternaria sp., Fusarium sp., Drechslera spp. and Epicoccum sp.) did not compete for the infection site of fusarium head blight in wheat, not interfering with the incidence of F. graminearum.”