Intervention effectmodel-written summary

Isoproturon plus 2, 4-D increased yield relative to 2, 4-D alone in grass weed fields.

A claim from Influence of Fluroxypyr, Isoproturon and 2, 4-D of Weed Control in Wheat · 1993

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Isoproturon plus 2, 4-D increased yield relative to 2, 4-D alone in grass weed fields.

Treatment
combination of Isoproturon and 2, 4-D at 0.75 kg/hae0
Outcome
grain yielde0
Direction
increasede0
Comparator
2, 4-D applied alonee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

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

Verbatim

e0

“combination of Isoproturon and 2, 4-D at 0.75 kg/ha increased the grain yield of wheat over fluroxypyr or 2, 4-D applied alone”

✓ located verbatim in the source · abstract, characters 378–504

Title

Influence of Fluroxypyr, Isoproturon and 2, 4-D of Weed Control in Wheat

R.S. Panwar; R. K. Malik; R. S. Balyan Indian Journal of Weed Science 1993

Other claims from this paper (6)

Record rev-16e84e6949d7ddbd63a8d882630039ab5dae529233bccc2e051e17304b00c57c · schema claims-v0.9 · position 7 in the model’s answer

isoproturon · yield · Triticum aestivum (wheat)Results differ

89 papers: 75 positive, 14 negative or no effect

74 papers in the same direction as this claim · 7 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
    Isoproturon depressed wheat yield and appeared phytotoxic.

    Efficacy of various herbicides against weeds in wheat (Triticum aestivum L.) · 2012

    Opposite direction

  2. negative
    Isoproturon produced significantly less grain yield than new herbicides in 1997–98.

    Bioefficacy of New Herbicides for the Control of Resistant Phalaris minor in Wheat · 1999 · compared with new herbicides

    Opposite direction

  3. negative
    Pendimethalin plus isoproturon affected Clever grain yield only in the hard-winter season.

    Sensitivity of Winter Wheat Cultivars to Selected Herbicides · 2010

    Opposite direction

  4. negative
    IP 1.0 negatively influenced crop dry matter accumulation and grain yield.

    Weed suppression and crop yield in wheat after mustard seed meal aqueous extract application with reduced rate of isoproturon · 2021

    Opposite direction

  5. negative
    Isoproturon gave significantly lower wheat grain yield than tralkoxydim, clodinafop, fenoxaprop-p-ethyl and sulfosulfuron under all residue management systems.

    Influence of Paddy Residue Management Techniques on the Bioefficacy of Herbicides for Control of Phalaris minor in Rice-Wheat System · 2003 · compared with tralkoxydim (0.35 kg ha-1), clodinafop (0.06 kg ha−1), fenoxaprop-p-ethyl (0.10 kg ha−1) and sulfosulfuron (0.025 kg ha−1)

    Opposite direction

  6. negative
    Applications beyond 40 days significantly reduced wheat growth and grain yield.

    Effect of Time of Application of Isoprotnron on the Control of Weeds in Wheat (Triticum Aesiivum) · 1988

    Opposite direction

  7. negative
    Isoproturon plus 2,4-D reduced wheat grain yield.

    Influence of graded doses of nitrogen and isoproturon on the control of weeds in wheat. · 1990

    Opposite direction

  8. no effect
    Isoproturon plus 2,4-D was at par with sulfosulfuron plus 2,4-D for grain yield of wheat.

    Effect of different herbicides on weed growth and yield performance of wheat · 2012 · compared with sulfosulfuron (25 g) + 2,4-D (500 g/ha)

    No difference from an alternative

80 papers more in this group

See all 89 papers →

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

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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.