Intervention effectmodel-written summary

Low planting density under reduced irrigation improved dry matter accumulation, SPAD and leaf area index.

A claim from Productivity and economic benefits of winter wheat in Northwest China by optimizing irrigation and planting density · 2025

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Low planting density under reduced irrigation improved dry matter accumulation, SPAD and leaf area index.

Taxon
Winter wheatTriticum aestivume1
Treatment
lower PD (187.5×10 4 plants ha -1 ) under reduced irrigatione0
Outcome
dry matter accumulation (DMA), SPAD, and leaf area index (LAI)e0
Direction
improvede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“lower PD (187.5×10 4 plants ha -1 ) under reduced irrigation significantly improved dry matter accumulation (DMA), SPAD, and leaf area index (LAI), leading to higher grain yield”

✓ located verbatim in the source · abstract, characters 1236–1413
e1

“Winter wheat is a key staple crop”

✓ located verbatim in the source · abstract, characters 396–429

Title

Productivity and economic benefits of winter wheat in Northwest China by optimizing irrigation and planting density

Muhammad Fraz Ali; Lijuan Ma; Irsa Ejaz; et al. Journal of Integrative Agriculture 2025. doi:10.1016/j.jia.2025.07.005

Other claims from this paper (6)

Record rev-b50278f00a5214a36526a8f999cc3bd6661ff85fef6e1ec270d87011adfc3b0a · schema claims-v0.9 · position 1 in the model’s answer

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

498 papers: 376 positive, 122 negative or no effect

375 papers in the same direction as this claim · 115 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
    1 October sowing with 90 kg ha–1 seeding achieved the best yield.

    Optimization of sowing date and seeding rate for high winter wheat yield based on pre-winter plant development and soil water usage in the Loess Plateau, China · 2019

    Same directionCited by this paper

  2. positive
    Increasing planting density improved kernel number and mitigated late-sowing yield loss.

    Optimizing planting density and nitrogen application to mitigate yield loss and improve grain quality of late-sown wheat under rice–wheat rotation · 2024

    Same directionCited by this paper

  3. no effect
    Sowing density did not affect yield in 2000.

    Field evaluation of early vigour for genetic improvement of grain yield in wheat · 2002

    Opposite direction

  4. no effect
    Spacing changes did not significantly affect grain yield.

    Genotype, sowing date and plant spacing influence on high-yielding irrigated wheat in southern New South Wales. II. Growth, yield and nitrogen use · 1990

    Opposite direction

  5. no effect
    Nitrogen level, N timing and seeding rate had no significant effect on spring wheat grain yield across environments.

    Seeding Rate and Nitrogen Management Effects on Spring Wheat Yield and Yield Components · 2007

    Opposite direction

  6. negative
    Lower seeding rates reduced grain yield by 0.8 Mg ha −1.

    Seeding Rate and Genotype Effect on Agronomic Performance and End‐Use Quality of Winter Wheat · 2002

    Opposite direction

  7. no effect
    Increasing sowing density from 50 to 100 kg/ha had little influence on yield or yield-related characteristics of restricted and freely tillering lines.

    Agronomic evaluation of a tiller inhibition gene (tin) in wheat. I. Effect on yield, yield components, and grain protein · 2005

    Opposite direction

  8. negative
    Increasing seeding rate at wide spacing could not achieve the narrow spacing yield gain.

    Hard Red Spring Wheat Response to Row Spacing, Seeding Rate, and Nitrogen · 2008

    Opposite direction

489 papers more in this group

See all 498 papers →

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

989 papers: 798 positive, 191 negative or no effect

797 papers in the same direction as this claim · 184 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
    One irrigation at jointing increased wheat yield compared with no irrigation.

    Irrigation and Nitrogen Regimes Promote the Use of Soil Water and Nitrate Nitrogen from Deep Soil Layers by Regulating Root Growth in Wheat · 2018 · compared with non-irrigated treatment (W0)

    Same directionCited by this paper

  2. positive
    Irrigation at fourth-leaf visibility increased winter wheat yield by 6.96–54.09 %.

    Optimization of irrigation period improves wheat yield by regulating source-sink relationship under water deficit · 2024

    Same directionCited by this paper

  3. positive
    Irrigation prolonged the time of dry matter accumulation in winter wheat.

    Irrigation and Nitrogen Management Determine Dry Matter Accumulation and Yield of Winter Wheat Under Dryland Conditions · 2024

    Same directionCited by this paper

  4. negative
    Minimum irrigation lowered average winter wheat yield by 14% versus full irrigation.

    Performance of Double‐Cropped Winter Wheat–Summer Maize under Minimum Irrigation in the North China Plain · 2006 · compared with fully irrigated treatment (FI)

    Opposite direction

  5. no effect
    Moderately saline water substituted for good quality water during part of the season maintained total wheat grain yield.

    Time of Salt Stress Affects Growth and Yield Components of Irrigated Wheat · 1994 · compared with good quality water

    Opposite direction

  6. negative
    Saline irrigation caused soil salinization and reduced wheat growth and yield.

    Effect of Straw Biochar on Soil Properties and Wheat Production under Saline Water Irrigation · 2019

    Opposite direction

  7. negative
    Deficit irrigation in salt-affected soil reduced wheat productivity.

    Collaborative Impact of Compost and Beneficial Rhizobacteria on Soil Properties, Physiological Attributes, and Productivity of Wheat Subjected to Deficit Irrigation in Salt Affected Soil · 2022

    Opposite direction

  8. negative
    Wastewater irrigation decreased plant height, leaf area and grain yield in wheat.

    Effect of Wastewater Irrigation on Photosynthesis, Growth, and Anatomical Features of Two Wheat Cultivars (Triticum aestivum L.) · 2020

    Opposite direction

980 papers more in this group

See all 989 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.