Abstract
ABSTRACT The effects of take-all epidemics on winter wheat yield formation were determined, and disease-yield relationships were established to assess the agronomic efficacy and economic benefits of control methods. Epidemics were generated in naturally infested fields by varying cropping season, crop order in the rotation, and experimental fungicide seed treatment. Disease incidence and severity were assessed from tillering to flowering. Yield components were measured at harvest. Models simulating the formation of the yield components in the absence of limiting factors were used to estimate the losses caused by take-all. Losses were predicted by the disease level at a specific time or the area under the disease progress curve, reflecting accumulation during a specific period. Losses of grain number per square meter and 1,000-grain weight were linked to cumulative disease incidence between the beginning of stem elongation and flowering, and disease incidence at midstem elongation, respectively. Yield losses were accounted for by both cumulative disease incidence between sowing and flowering, and disease incidence at midstem elongation. Results confirm the importance of nitrogen fertilization in reducing the impact of take-all on wheat.
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Claims 5
Claim · model-written summary
Models predicted losses using disease level at a particular time or the disease progress curve.
- Taxon
- winter wheat
Triticum aestivumt0 - Interactor
- take-allt0pathogen
- Outcome
- Lossese0
- Comparator
- disease level at a specific time or the area under the disease progress curvee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Losses were predicted by the disease level at a specific time or the area under the disease progress curve”
t0“take-all epidemics on winter wheat”
Claim · model-written summary
Grain number loss was linked to cumulative incidence from stem elongation to flowering.
- Taxon
- winter wheatTriticum aestivumt0
- Interactor
- take-allt0pathogen
- Outcome
- Losses of grain number per square metere0
- Direction
- linkede0
- Comparator
- cumulative disease incidence between the beginning of stem elongation and floweringe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Losses of grain number per square meter and 1,000-grain weight were linked to cumulative disease incidence between the beginning of stem elongation and flowering, and disease incidence at midstem elongation, respectively”
t0“take-all epidemics on winter wheat”
Claim · model-written summary
Thousand grain weight loss was linked to disease incidence at mid stem elongation.
- Taxon
- winter wheatTriticum aestivumt0
- Interactor
- take-allt0pathogen
- Outcome
- 1,000-grain weighte0
- Direction
- linkede0
- Comparator
- disease incidence at midstem elongatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Losses of grain number per square meter and 1,000-grain weight were linked to cumulative disease incidence between the beginning of stem elongation and flowering, and disease incidence at midstem elongation, respectively”
t0“take-all epidemics on winter wheat”
Claim · model-written summary
Yield losses were explained by cumulative incidence through flowering and mid stem elongation incidence.
- Taxon
- winter wheatTriticum aestivumt0
- Interactor
- take-allt0pathogen
- Outcome
- Yield lossese0
- Comparator
- cumulative disease incidence between sowing and flowering, and disease incidence at midstem elongatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield losses were accounted for by both cumulative disease incidence between sowing and flowering, and disease incidence at midstem elongation”
t0“take-all epidemics on winter wheat”
Claim · model-written summary
Nitrogen fertilization reduced the impact of take-all on wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- nitrogen fertilizatione0
- Interactor
- take-alle0pathogen
- Outcome
- impact of take-all on wheate0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen fertilization in reducing the impact of take-all on wheat”
The same questions in other papers
fertilization · organism · Triticum aestivum (wheat)Positive and negative results
97 papers in the same direction as this paper · 25 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
121 papers more in this group
See all 125 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.