Intervention effectmodel-written summary

Foliar chitosan with conventional cultivation increased rice yield by up to 26% relative to conventional cultivation alone.

A claim from Investigating the impact of oligo-chitosan on the growth dynamics and yield traits of Oryza sativa L. ‘BRRI dhan29’ under subtropical conditions · 2024

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar chitosan with conventional cultivation increased rice yield by up to 26% relative to conventional cultivation alone.

Taxon
Oryza sativa L.Oryza sativat0
Material
BRRI dhan29t0
Treatment
foliar spray of different concentration of chitosan solutione0
Outcome
yielde0
Direction
increasee0
Value
26 %e0
Comparator
the conventional methode0

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“the conventional method with foliar spray of different concentration of chitosan solution was able to increase yield up to 26 % in comparison to the conventional method”

✓ located verbatim in the source · abstract, characters 23–191
t0

“Oryza sativa L. ‘BRRI dhan29’”

✓ located verbatim in the source · title, characters 86–115

Title

Investigating the impact of oligo-chitosan on the growth dynamics and yield traits of Oryza sativa L. ‘BRRI dhan29’ under subtropical conditions

Afrina Rahman; Rayhan Ahammed; Jayanta Roy; et al. Heliyon 2024. doi:10.1016/j.heliyon.2024.e41552

Other claims from this paper (1)

Record rev-e86a2e4e5b33488ed4da4bfbe3bab3e7dbaae3d5ef76c6f70ed5f33761cd379a · schema claims-v0.9 · position 1 in the model’s answer

chitosan · yield · Oryza sativa (rice)Results agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this claim

  1. positive
    Chitosan applied by seed soaking plus soil application four times across the cropping season significantly increased rice yield relative to the other treatments.

    Application of chitosan in rice production · 2008 · compared with the other treatments

    Same directionCited by this paper

  2. positive
    The 100 mg/L LMWCHT treatment produced the highest rice yield.

    Effect of foliar application of low molecular weight chitosan on rice growth and yield in the Sudan Savanna Zone of Ghana · 2025

    Same directionCites this paper

  3. positive
    Combined salicylic acid and chitosan mitigated high-temperature impairment of rice pollen viability by 75%.

    Salicylic acid and chitosan mitigate high temperature stress of rice via growth improvement, physio-biochemical adjustments and enhanced antioxidant activity · 2023

    Same direction

  4. positive
    Polymeric chitosan soaking plus four foliar sprays significantly increased tiller number and dry matter.

    Effects of Molecular Weight of Chitosan on Yield Potential of Rice Cultivar Suphan Buri 1 · 2006

    Same direction

  5. positive
    Chitosan increased leaf number, tillers and leaf area.

    Physiological and photosynthesis enhancement of Thai rice (Oryza sativa L.) cultivarsby biochitosan · 2016

    Same direction

  6. positive
    Chitosan SL increased rice yield by up to 25% compared with synthetic pesticide control.

    Aplikasi kitosan untuk penekanan kejadian penyakit dan peningkatan hasil panen tanaman padi (Oryza sativa L.) · 2022 · compared with synthetic pesticides application as control (P0)

    Same direction

  7. positive
    CNPT enhanced tiller number.

    Evaluation of Tricyclazole-Encapsulated Chitosan Nanoparticles Against Blast Disease and on Physiological Attributes of Rice · 2025

    Same direction

  8. positive
    Irradiated chitosan at 50 ppm outperformed control and 100 ppm for growth and yield.

    Effect of wider spacing, nutrient levels and bio stimulant on growth and yield of rice (Oryza sativa L.) under transplanted field conditions · 2025 · compared with control and 100 ppm

    Same direction

See all 9 papers →

application · yield · Oryza sativa (rice)Positive and negative results

691 papers: 645 positive, 46 negative or no effect

644 papers in the same direction as this claim · 37 in the opposite direction · 9 reporting no difference from an alternative

  1. positive
    Chitosan applied by seed soaking plus soil application four times across the cropping season significantly increased rice yield relative to the other treatments.

    Application of chitosan in rice production · 2008 · compared with the other treatments

    Same directionCited by this paper

  2. negative
    Traditional soaking reduced kernel yield of direct seeded rice compared with control.

    Enhancing the Performance of Direct Seeded Fine Rice by Seed Priming · 2006 · compared with control

    Opposite direction

  3. no effect
    Foliar-applied Zn, I, Fe or Se did not affect rice grain yield.

    Simultaneous Biofortification of Rice With Zinc, Iodine, Iron and Selenium Through Foliar Treatment of a Micronutrient Cocktail in Five Countries · 2020 · compared with local control (LC)

    Opposite direction

  4. no effect
    Foliar silicon had no significant effect on plant height, harvest index or number of kernels of rice.

    Effect of Foliar Application of Silicon on Yield and Quality of Rice (Oryza Sativa L) · 2013

    Opposite direction

  5. negative
    Foliar Zn application at a late stage was not as effective as soil application in increasing yield attributes and yield of rice.

    Relative Efficiency of Zinc-Coated Urea and Soil and Foliar Application of Zinc Sulphate on Yield, Nitrogen, Phosphorus, Potassium, Zinc and Iron Biofortification in Grains and Uptake by Basmati Rice (Oryza sativa L.) · 2015 · compared with soil application

    Opposite direction

  6. negative
    Foliar spray decreased grain yield.

    Suppression of methane fluxes from flooded paddy soil with rice plants by foliar spray of nitrogen fertilizers · 1992

    Opposite direction

  7. negative
    Foliar spray of urea gave the lowest yield components and yield in this study.

    Response of Transplanted Rice to Different Application Methods of Urea Fertilizer · 2009

    Opposite direction

  8. no effect
    The number of foliar phytohormone sprays made no significant difference to yield.

    Rice yield improvement by foliar application of phytohormone · 2014

    Opposite direction

682 papers more in this group

See all 691 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.