Abstract
Wheat blast and leaf spot diseases present significant challenges for chemical control. This study hypothesized that fungicide efficacy against wheat blast depends on genotype – fungicide interactions and weather conditions, while the use of broad-spectrum fungicides complicates disease-specific assessments. The objective was to evaluate wheat blast, leaf spots, and grain traits as influenced by genotype, fungicide, and environmental conditions. Field trials were carried out during 2016 and 2017 crop seasons using a complete 3 × (7 + 1) factorial arrangement, comprising three wheat genotypes, seven fungicides, and an untreated control. Wheat blast incidence and leaf spot severity were highly correlated, both driven by genotype – fungicide interactions and modulated by weather conditions. High humidity combined with warmer temperatures, which favor fungal infection, reduced the efficacy of chemical control. Grain yield and thousand-grain weight were strongly influenced by diseases and genotypes, though fungicide application had no significant effect. In conclusion, fungicide management strategies should be tailored to specific active ingredients and wheat cultivars, taking environmental conditions into account. Additionally, the use of broad-spectrum fungicides, recommended for both diseases, complicates disease-specific evaluations, particularly when leaf spots are overlooked in wheat blast-focused studies, highlighting the need for integrated disease assessments.
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Claims 7
Claim · model-written summary
Wheat blast incidence and leaf spot severity were highly correlated.
- Taxon
- Wheat
Triticum aestivumt0 - Outcome
- Wheat blast incidence and leaf spot severitye0
- Qualifier
- highly correlatede0
Not reportedInteractorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat blast incidence and leaf spot severity were highly correlated, both driven by genotype – fungicide interactions and modulated by weather conditions”
t0“Wheat blast”
Claim · model-written summary
Genotype–fungicide interactions and weather conditions influenced wheat blast incidence and leaf spot severity.
- Taxon
- WheatTriticum aestivume0
- Material
- genotypee0
- Treatment
- fungicidee0
- Outcome
- Wheat blast incidence and leaf spot severitye0
- Qualifier
- weather conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat blast incidence and leaf spot severity were highly correlated, both driven by genotype – fungicide interactions and modulated by weather conditions”
Claim · model-written summary
High humidity and warmer temperatures reduced fungicide efficacy.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- efficacy of chemical controle0
- Direction
- reducede0
- Setting
- High humidity combined with warmer temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High humidity combined with warmer temperatures, which favor fungal infection, reduced the efficacy of chemical control”
t0“Wheat blast”
Claim · model-written summary
Disease and genotype strongly influenced grain yield and thousand-grain weight.
- Taxon
- WheatTriticum aestivumt0
- Material
- genotypese0
- Outcome
- Grain yield and thousand-grain weighte0
- Qualifier
- diseasese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield and thousand-grain weight were strongly influenced by diseases and genotypes”
t0“Wheat blast”
Claim · model-written summary
Fungicide application had no significant effect on grain yield and thousand-grain weight.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- fungicide applicatione0
- Outcome
- Grain yield and thousand-grain weighte0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield and thousand-grain weight were strongly influenced by diseases and genotypes, though fungicide application had no significant effect”
t0“Wheat blast”
Claim · model-written summary
The authors recommend tailoring fungicide strategies to active ingredients, cultivars and environmental conditions.
- Taxon
- wheatTriticum aestivume0
- Outcome
- fungicide management strategies should be tailorede0
- Qualifier
- environmental conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fungicide management strategies should be tailored to specific active ingredients and wheat cultivars, taking environmental conditions into account”
Claim · model-written summary
The authors recommend integrated assessments of wheat blast and leaf spots because broad-spectrum fungicides complicate disease-specific evaluation.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- integrated disease assessmentse0
- Qualifier
- broad-spectrum fungicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of broad-spectrum fungicides, recommended for both diseases, complicates disease-specific evaluations, particularly when leaf spots are overlooked in wheat blast-focused studies, highlighting the need for integrated disease assessments”
t0“Wheat blast”
The same questions in other papers
fungicide · yield · Triticum aestivum (wheat)Positive and negative results
29 papers in the same direction as this paper · 232 in the opposite direction
- positive
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See all 262 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.