Abstract
The control of stripe rust (Puccinia striijormis) in wheat by foliar spraying with the fungicide triadimefon was studied in spring-sown trials in Southland. In a trial at Gore, infection first developed in early December but developed at different rates in three cultivars. In unsprayed plots the cultivar Tiritea was severely affected, Kopara slightly affected and Karamu affected very little. Spraying either once (G.S. 5), twice (G.S. 10.5 and 11.1) or three times (G.S. 5, 10.5 and 11.1) increased yield significantly in Tiritea but not in Kopara or Karamu. Thousand grain weight and grains per head were both improved in Tiritea by spraying. The effect of late spraying (post flowering) on the susceptible cultivars Takahe and Tiritea gave variable results. A significant response in Tiritea up to late milk (G.S. 11.2) was recorded under high infection conditions ( >500Jo leaf infected). In other trials at lower rust levels, no yield responses were recorded even though the incidence of stripe rust on leaves and on heads was reduced.
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Claims 12
Claim · model-written summary
Stripe rust developed at different rates in three wheat cultivars.
- Taxon
- wheat
Triticum aestivume1 - Interactor
- Puccinia striijormise1pathogen
- Outcome
- infectione0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“infection first developed in early December but developed at different rates in three cultivars”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
In unsprayed wheat plots, Tiritea was severely affected by stripe rust.
- Taxon
- wheatTriticum aestivume1
- Material
- Tiriteae0
- Interactor
- Puccinia striijormise1pathogen
- Outcome
- severely affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In unsprayed plots the cultivar Tiritea was severely affected, Kopara slightly affected and Karamu affected very little.”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
In unsprayed wheat plots, Kopara was slightly affected by stripe rust.
- Taxon
- wheatTriticum aestivume1
- Material
- Koparae0
- Interactor
- Puccinia striijormise1pathogen
- Outcome
- slightly affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kopara slightly affected”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
In unsprayed wheat plots, Karamu was affected very little by stripe rust.
- Taxon
- wheatTriticum aestivume1
- Material
- Karamue0
- Interactor
- Puccinia striijormise1pathogen
- Outcome
- affected very littlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Karamu affected very little”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
One, two, or three fungicide sprays significantly increased Tiritea yield.
- Taxon
- wheatTriticum aestivume1
- Material
- Tiriteae0
- Treatment
- Spraying either once (G.S. 5), twice (G.S. 10.5 and 11.1) or three times (G.S. 5, 10.5 and 11.1)e0
- Interactor
- Puccinia striijormise1pathogen
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying either once (G.S. 5), twice (G.S. 10.5 and 11.1) or three times (G.S. 5, 10.5 and 11.1) increased yield significantly in Tiritea”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
Spraying did not significantly increase Kopara yield.
- Taxon
- wheatTriticum aestivume1
- Material
- Koparae0
- Outcome
- yielde0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased yield significantly in Tiritea but not in Kopara or Karamu”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
Spraying did not significantly increase Karamu yield.
- Taxon
- wheatTriticum aestivume1
- Material
- Karamue0
- Outcome
- yielde0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased yield significantly in Tiritea but not in Kopara or Karamu”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
Spraying improved Tiritea thousand grain weight and grains per head.
- Taxon
- wheatTriticum aestivume1
- Material
- Tiriteae0
- Treatment
- sprayinge0
- Outcome
- Thousand grain weight and grains per heade0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thousand grain weight and grains per head were both improved in Tiritea by spraying.”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
Late spraying gave variable results in Takahe and Tiritea.
- Taxon
- wheatTriticum aestivume1
- Treatment
- late spraying (post flowering)e0
- Outcome
- variable resultse0
- Qualifier
- Takahe and Tiriteae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“late spraying (post flowering) on the susceptible cultivars Takahe and Tiritea gave variable results”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
Under high infection, Tiritea responded significantly to spraying through late milk stage.
- Taxon
- wheatTriticum aestivume1
- Material
- Tiriteae0
- Outcome
- responsee0
- Qualifier
- up to late milk (G.S. 11.2)e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant response in Tiritea up to late milk (G.S. 11.2) was recorded under high infection conditions ( >500Jo leaf infected).”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
At lower rust levels, spraying did not produce yield responses.
- Taxon
- wheatTriticum aestivume1
- Outcome
- yield responsese0
- Direction
- noe0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In other trials at lower rust levels, no yield responses were recorded”
e1“stripe rust (Puccinia striijormis) in wheat”
Claim · model-written summary
At lower rust levels, spraying reduced leaf and head stripe rust incidence.
- Taxon
- wheatTriticum aestivume1
- Interactor
- Puccinia striijormise1pathogen
- Outcome
- incidence of stripe rust on leaves and on headse0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the incidence of stripe rust on leaves and on heads was reduced”
e1“stripe rust (Puccinia striijormis) in wheat”
The same questions in other papers
application · yield · Triticum aestivum (wheat)Positive and negative results
794 papers in the same direction as this paper · 75 in the opposite direction · 7 reporting no difference from an alternative
- no effect
- negative
- no effect
873 papers more in this group
See all 877 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.