Abstract
Abstract The presence of foliar pathogens often leads to yield losses in winter wheat ( Triticum aestivum L.), the most important crop in Germany. In this study the efficacy of different host resistance levels of eight wheat cultivars and three fungicide strategies on fungal disease control was studied in terms of yield and net return in field trials at five sites over three crop years. Fungicide treatments included a situation-related strategy in which cultivars were treated individually based on disease control thresholds, a practice-related strategy in which all cultivars were treated after disease thresholds had been exceeded in one cultivar, and an untreated control. Disease severity and incidence differed between cultivars and were reduced by fungicide treatments compared to the untreated control. On average over all locations and years, the Fungicide Treatment Frequency Index (TFI) of all cultivars treated with the situation-related strategy was significantly lower than those treated with the practice-related strategy, except the highly susceptible cultivar JB Asano. A reduction of the TFI by up to 82% was possible in the situation-related strategy. Despite slightly increased yields in the practice-related strategy compared to the situation-related strategy, these could not compensate for the higher fungicide costs in most cases and led to lower net returns. The cultivars with multi-disease resistance showed clear advantages. Their potential benefits are not only demonstrated by the attainment of high yields, but also in fungicide savings without reducing net returns, provided that their disease resistance characteristics are taken into account.
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Claims 8
Claim · model-written summary
Disease severity and incidence differed among wheat cultivars.
- Taxon
- winter wheat
Triticum aestivume1 - Material
- cultivarse0
- Outcome
- Disease severity and incidencee0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease severity and incidence differed between cultivars”
e1“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Fungicide treatments reduced disease severity and incidence relative to untreated controls.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- fungicide treatmentse0
- Outcome
- Disease severity and incidencee0
- Direction
- reducede0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease severity and incidence differed between cultivars and were reduced by fungicide treatments compared to the untreated control.”
e1“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Situation-related treatment gave significantly lower fungicide frequency than practice-related treatment except in JB Asano.
- Taxon
- winter wheatTriticum aestivume1
- Material
- JB Asanoe0
- Treatment
- situation-related strategye0
- Outcome
- Fungicide Treatment Frequency Index (TFI)e0
- Direction
- lowere0
- Qualifier
- except the highly susceptible cultivar JB Asanoe0
- Comparator
- practice-related strategye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Fungicide Treatment Frequency Index (TFI) of all cultivars treated with the situation-related strategy was significantly lower than those treated with the practice-related strategy, except the highly susceptible cultivar JB Asano”
e1“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Situation-related treatment could reduce fungicide frequency by up to 82%.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- situation-related strategye0
- Outcome
- TFIe0
- Direction
- reductione0
- Value
- up to 82%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A reduction of the TFI by up to 82% was possible in the situation-related strategy.”
e1“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Practice-related treatment produced slightly higher yields than situation-related treatment.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- practice-related strategye0
- Outcome
- yieldse0
- Direction
- increasede0
- Comparator
- situation-related strategye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slightly increased yields in the practice-related strategy compared to the situation-related strategy”
e1“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Practice-related treatment produced lower net returns in most cases because higher fungicide costs outweighed yield gains.
- Taxon
- winter wheatTriticum aestivume2
- Treatment
- practice-related strategye1
- Outcome
- net returnse0
- Direction
- lowere0
- Qualifier
- in most casese0
- Comparator
- situation-related strategye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these could not compensate for the higher fungicide costs in most cases and led to lower net returns”
e1“practice-related strategy compared to the situation-related strategy”
e2“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Multi-disease-resistant cultivars attained high yields.
- Taxon
- winter wheatTriticum aestivume1
- Material
- cultivars with multi-disease resistancee0
- Outcome
- yieldse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivars with multi-disease resistance showed clear advantages. Their potential benefits are not only demonstrated by the attainment of high yields”
e1“winter wheat ( Triticum aestivum L.)”
Claim · model-written summary
Multi-disease-resistant cultivars saved fungicide without reducing net returns when resistance characteristics were considered.
- Taxon
- winter wheatTriticum aestivume2
- Material
- cultivars with multi-disease resistancee1
- Outcome
- fungicide savings without reducing net returnse0
- Qualifier
- provided that their disease resistance characteristics are taken into accounte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fungicide savings without reducing net returns, provided that their disease resistance characteristics are taken into account”
e1“The cultivars with multi-disease resistance”
e2“winter wheat ( Triticum aestivum L.)”
The same questions in other papers
fungicide · disease · Triticum aestivum (wheat)Positive and negative results
134 papers in the same direction as this paper · 19 in the opposite direction · 3 reporting no difference from an alternative
- negative
- positive
- negative
153 papers more in this group
See all 157 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.