Intervention effectmodel-written summary

2,4-D ester decreased winter wheat yield by at least 10%.

A claim from Tolerance of Winter Wheat (Triticum aestivum L.) and Under Seeded Red Clover (Trifolium pretense L.) to Fall Applied Post-Emergent Broadleaf Herbicides · 2014

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Taxon: winter wheatTriticum aestivume1
Treatment: 2,4-D estere1
Outcome: winter wheat yielde1
Direction: decreasede1
Value: at least 10%e1
Setting: Exeter and Ridgetown, Ontarioe2

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

*Triticum aestivum* · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1
“In contrast, 2,4-D ester and dichlorprop/2,4-D, caused visible injury in June and July of the following year and consistently decreased winter wheat yield by at least 10%”
✓ located verbatim in the source · abstract, characters 758–928

e2
“The tolerance of winter wheat to ten herbicides, applied POST in the fall, was evaluated between 2008 and 2011 at Exeter and Ridgetown, Ontario”
✓ located verbatim in the source · abstract, characters 397–540

Title

Tolerance of Winter Wheat (Triticum aestivum L.) and Under Seeded Red Clover (Trifolium pretense L.) to Fall Applied Post-Emergent Broadleaf Herbicides

Kristen E. McNaughton; Lynette R. Brown; Peter H. Sikkema American Journal of Plant Sciences 2014. doi:10.4236/ajps.2014.59139

Other claims from this paper (13)

Intervention effect Winter wheat yield was not reduced by applications of MCPA ester.
Intervention effect Winter wheat yield was not reduced by applications of dicamba/ MCPA/ mecoprop.
Intervention effect Winter wheat yield was not reduced by applications of clopyralid.
Intervention effect Winter wheat yield was not reduced by applications of bromoxynil/ MCPA.
Intervention effect Winter wheat yield was not reduced by applications of thifensulfuron /tribenuron +MCPA ester.
Intervention effect Winter wheat yield was not reduced by applications of fluroxypyr +MCPA ester.
Intervention effect Winter wheat yield was not reduced by applications of pyrasulfotole/ bromoxynil.
Intervention effect dichlorprop/2,4-D decreased winter wheat yield by at least 10%.
Intervention effect 2,4-D ester caused visible injury in winter wheat in June and July of the following year.
Intervention effect dichlorprop/2,4-D caused visible injury in winter wheat in June and July of the following year.
Intervention effect 100 g a.i. ha-1 saflufenacil decreased winter wheat yield in two of the four harvest years examined.
Observation No tested herbicide option was safe on under-seeded red clover.
Intervention effect All herbicides significantly decreased red clover dry biomass one month after wheat harvest.

Record rev-2c2e4c7867ae0fc3c5a897598be9e55c0c09f6a7fb0cc76e3e5a151c91ea6930 · schema claims-v0.9 · position 8 in the model’s answer

2,4-D · yield · Triticum aestivum (wheat)Results differ

116 papers: 78 positive, 38 negative or no effect

37 papers in the same direction as this claim · 78 in the opposite direction

negative
Fall application of 2,4-D lowered Lennox yield relative to spring application.
EFFECT OF TIME OF APPLICATION OF HERBICIDES ON YIELD OF THREE WINTER WHEAT CULTIVARS · 1990 · compared with spring-applied
Same directionCited by this paper
positive
Phytohormone supplementation of the subculture medium significantly enhanced embryogenic callus production in wheat.
Optimization of mature embryo‐based high frequency callus induction and plant regeneration from elite wheat cultivars grown in China · 2008
Opposite direction
positive
Clodinafop followed by 2,4-D produced 45.88-47.05 per cent higher grain yield than isoproturon plus 2,4-D.
Effect of tillage and herbicides on grain yield and nutrient uptake by wheat (Triticum aestivum) and weeds · 2001 · compared with isoproturon + 2,4-D
Opposite direction
positive
June application of ¾-lb/A 2,4-D prevented field bindweed seed production.
Field Bindweed Control with Cultivation, Cropping, and Chemicals · 1970
Opposite direction
positive
Postemergence herbicides reduced weed dry matter accumulation by 67.4%.
Weed Control Efficiency of Herbicides in Irrigated Wheat (Triticum aestivum) · 2013 · compared with farmer practices
Opposite direction
positive
Sulfosulfuron plus 2,4-D increased crop growth and grain yield of wheat.
Effect of different herbicides on weed growth and yield performance of wheat · 2012
Opposite direction
positive
The isoproturon-2,4-D mix yielded 55.34 q/ha.
Effect of herbicides and nutrient management on weed flora, nutrient uptake and yield of wheat (Triticum aestivum) under irrigated conditions. · 2010 · compared with all other treatments
Opposite direction
positive
Isoproturon 750 g ha−1 with 2, 4-D 400 g ha−1 gave significantly higher grain yield of 4873 kg ha−1.
Influence of Herbicides and Methods of Sowing on Weed Dynamics in Wheat (Triticum aestivum L.) · 2003
Opposite direction

107 papers more in this group

See all 116 papers →

ester · yield · Triticum aestivum (wheat)Positive and negative results

9 papers: 5 positive, 4 negative or no effect

3 papers in the same direction as this claim · 5 in the opposite direction

positive
The combination produced the highest wheat grain yield, 5.81 t/ha.
Comparative Efficacy of Different Herbicidal Combinations on Weed Growth and Yield Attributes of Wheat · 2023 · compared with different herbicidal combinations
Opposite direction
positive
2,4-D ester increased wheat grain yield by 216 versus untreated control.
Comparative efficacy of five herbicides on winter cereal weeds in semi-arid region of Algeria. · 2001 · compared with untreated control
Opposite direction
positive
Metsulfuron plus 2, 4-D Ester increased wheat dry matter and height relative to weedy check.
Bio-efficacy evaluation of herbicides and their mixtures on broad leaf weeds in wheat · 2020 · compared with weedy check
Opposite direction
positive
Metsulfuron + 2, 4-D Ester at (3 + 500 g/ha) significantly increased wheat dry matter accumulation and plant height compared with weedy check.
Effect of Herbicides and their Mixtures on Broad Leaf Weeds and Yield of Wheat · 2020 · compared with weedy check
Opposite direction
positive
The 20% ammonium nitrate plus 1% 2,4-D ester treatment with N16P16K16 and N68 produced high seed yield.
THE EFFECT OF SENICATION AT DIFFERENT LEVELS OF MINERAL NUTRITION ON THE YIELD OF CERTIFIED WINTER WHEAT SEEDS · 2022
Opposite direction
negative
High rates of ester formulations of herbicide reduced spring wheat grain yields.
EFFECTS OF THE CONTINUOUS USE OF 2,4-D AND MCPA ON SPRING WHEAT PRODUCTION AND WEED POPULATIONS · 1974 · compared with Check plots receiving no herbicide
Same direction
negative
2,4-D ester decreased grain yield at Sidney versus handweeding.
Cultural Practices in Wheat (Triticum aestivum), on Weeds in Subsequent Fallow and Sorghum (Sorghum bicolor) · 1995 · compared with one handweeding
Same direction
no effect
Fluroxypyr plus MCPA ester rate or application timing had no significant effect on winter wheat yield.
Tolerance of three types of winter wheat (Triticum aestivum L.) to fluroxypyr plus MCPA ester · 2010
Same direction

See all 9 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.

Other papers on the same question

2,4-D · yield · Triticum aestivum (wheat)Results differ

ester · yield · Triticum aestivum (wheat)Positive and negative results