Intervention effectmodel-written summary

2,4-D alone increased wheat grain yield by 5 to 20 per cent over control.

A claim from Effect of Various Rates of 2, 4-D with and Without Urea on Dwarf Wheat and Associated Weeds* · 1974

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Taxon: dwarf wheat (Triticum aestivum L.)Triticum aestivume0
Treatment: 2,4-D alonee0
Outcome: grain yielde0
Direction: increasede0
Value: 5 to 20e0
Comparator: controle0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier

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

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

Verbatim

e0
“weeds in dwarf wheat (Triticum aestivum L.), 2,4-D alone and in combination with 3% urea gave 5 to 20 and 20 to 30 per cent increased grain yield respectively over control”
✓ located verbatim in the source · abstract, characters 231–402

Title

Effect of Various Rates of 2, 4-D with and Without Urea on Dwarf Wheat and Associated Weeds*

Jyoti Jain; S. S. Pahuja; M. K. Moolani Indian Journal of Weed Science 1974

Other claims from this paper (5)

Intervention effect 2,4-D combined with 3% urea increased wheat grain yield by 20 to 30 per cent over control.
Intervention effect Weeds reduced wheat grain yield by 22.5 per cent.
Intervention effect Weeds reduced wheat straw yield by 30.5 per cent.
Intervention effect Hand weeding increased wheat grain yield by 12 per cent over control.
Intervention effect Hand weeding without urea increased wheat grain yield by 7 per cent over control.

Record rev-ba81663352605fa8353c520cbaa1bf1037feb291ba67cefbab79008b3723f4eb · schema claims-v0.9 · position 1 in the model’s answer

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

116 papers: 78 positive, 38 negative or no effect

77 papers in the same direction as this claim · 34 in the opposite direction · 4 reporting no difference from an alternative

negative
Mid-boot dicamba plus 2,4-D reduced wheat yield by 21%.
Spring Wheat Response to Herbicides Applied at Three Growth Stages · 1990
Opposite direction
negative
2,4‐D during tillering reduced spikes per plant and spikelets per spike.
RESPONSE OF SPRING WHEAT TO THE APPLICATION OF 2,4‐D AT VARIOUS GROWTH STAGES* · 1967
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
Opposite direction
negative
2,4-D did not stop lentil growth and water use soon enough to prevent a reduction in subsequent wheat yield.
Management practices for black lentil green manure for the semi-arid Canadian prairies · 1999
Opposite direction
no effect
Glyphosate plus 2,4-D did not affect wheat yields or grain test weights.
Effects of Preplant Treatment Interval and Tillages on Herbicide Toxicity to Winter Wheat (Triticum aestivum) · 1991
Opposite direction
negative
2,4-D+glyphosate applied at milk grain to early dough stage reduced wheat yield.
Yield, germination and herbicide residue in seeds of preharvest desiccated wheat · 2018
Opposite direction
negative
Applying 2,4-D reduced wheat yield in both seasons regardless of application stage.
WHEAT RESPONSE TO 2,4-D APPLICATION AT TWO GROWTH STAGES UNDER SEMI-ARID CONDITIONS · 2001
Opposite direction
negative
Fluroxypyr 2,4-D tank mixture lowered wheat yield by 7%.
Control of Wild Oat (Avena fatua) in Wheat with MKH 6562¹ · 2001
Opposite direction

107 papers more in this group

See all 116 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