Intervention effectmodel-written summary

Combined Si, N and P significantly improved rice chlorophyll concentration after flood recovery.

A claim from Combined application of silica and nitrogen alleviates the damage of flooding stress in rice · 2015

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined Si, N and P significantly improved rice chlorophyll concentration after flood recovery.

Treatment
Si, N and Pe0
Outcome
concentrations of chlorophylle0
Direction
improvede0
Qualifier
after flood recoverye0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

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

“Combined effect of Si, N and P significantly improved, growth, photosynthetic rate, concentrations of chlorophyll and soluble sugars of rice after flood recovery”

✓ located verbatim in the source · abstract, characters 810–971

Title

Combined application of silica and nitrogen alleviates the damage of flooding stress in rice

B. Lal; Priyanka Gautam; S. Mohanty; et al. Crop and Pasture Science 2015. doi:10.1071/cp14326

Other claims from this paper (8)

Record rev-e9e035c73a1437d0d270be3f41bfd7aacf7c9500258bcc1920483f416ccd1172 · schema claims-v0.9 · position 6 in the model’s answer

silicon atom · physiology: pigments · Oryza sativa (rice)Positive and negative results

38 papers: 36 positive, 2 negative or no effect

35 papers in the same direction as this claim · 1 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
    During complete submergence, Si-treated seedlings showed a higher reduction in chlorophyll and non-structural carbohydrate concentrations than the control.

    Application of silica before sowing negatively affects growth and survival of rice following submergence · 2011 · compared with control

    Opposite direction

  2. no effect
    Extracted silicon from rice husk ash and silicon liquid fertilizer did not clearly differ in rice chlorophyll and root vigor.

    Effects of Extracted Silicon from Rice Hull Ash on Rice Seed Germination · 2012 · compared with silicon liquid fertilizer

    No difference from an alternative

  3. positive
    Si application significantly increased flag leaf area, chlorophyll content and Si content of MR219.

    Influence of silicon on growth, yield, and lodging resistance of MR219, a lowland rice of Malaysia · 2017

    Same direction

  4. positive
    Carotenoid concentrations were significantly greater with silicon.

    Alterations in Gas Exchange and Oxidative Metabolism in Rice Leaves Infected byPyricularia oryzaeare Attenuated by Silicon · 2015 · compared with -Si plants

    Same direction

  5. positive
    Silicon added to rice under Cd stress significantly improved morphological parameters, chlorophyll score and Fv/Fm compared with controls.

    Silicon induces phytochelatin and ROS scavengers facilitating cadmium detoxification in rice · 2020 · compared with controls

    Same direction

  6. positive
    Silicon increased rice height, chlorophyll content and dry weight.

    Silicon application promotes rice growth and negatively affects development of Spodoptera frugiperda (J. E. Smith) · 2017

    Same direction

  7. positive
    Silicon increased chlorophyll b under normal and osmotic stress conditions.

    Silicon Stimulates Plant Growth and Metabolism in Rice Plants under Conventional and Osmotic Stress Conditions · 2021

    Same direction

  8. positive
    Carotenoid concentration was higher in +Si rice than in -Si rice.

    Silicon partially preserves the photosynthetic performance of rice plants infected byMonographella albescens · 2015 · compared with −Si plants

    Same direction

29 papers more in this group

See all 38 papers →

nitrogen · physiology: pigments · Oryza sativa (rice)Results differ

85 papers: 73 positive, 12 negative or no effect

72 papers in the same direction as this claim · 12 in the opposite direction

  1. negative
    Pre-submergence nitrogen depleted chlorophyll and NSC.

    Effect of Nutrient Application on Growth, Metabolic and Enzymatic Activities of Rice Seedlings During Flooding Stress and Subsequent Re‐Aeration · 2014 · compared with prior to submergence

    Opposite directionCited by this paper

  2. positive
    Post flood foliar urea increased chlorophyll and soluble sugars.

    Post–flood nitrogen and basal phosphorus management affects survival, metabolic changes and anti-oxidant enzyme activities of submerged rice (Oryza sativa) · 2014

    Same directionCited by this paper

  3. no effect
    Basal N application did not change chlorophyll meter reading or crop growth rate in rice or wheat.

    Calibrating the Leaf Color Chart for Nitrogen Management in Different Genotypes of Rice and Wheat in a Systems Perspective · 2004 · compared with without basal N application

    Opposite direction

  4. negative
    Glufosinate caused slight chlorosis in rice, almost completely restored within 7 days.

    Glufosinate Ammonium-Induced Pathogen Inhibition and Defense Responses Culminate in Disease Protection in bar-Transgenic Rice · 2007

    Opposite direction

  5. no effect
    At tillering, PCTU and conventional urea did not differ significantly in height, SPAD value or shoot and root growth indexes.

    Polymer‐Coated Tablet Urea Improved Rice Yield and Nitrogen Use Efficiency · 2015 · compared with U treatments

    Opposite direction

  6. negative
    Restricted nitrogen supply decreased flag-leaf nitrogen, RuBPCO and chlorophyll contents in both cultivars.

    Effects of nitrogen supply restriction on gas exchange and photosystem 2 function in flag leaves of a traditional low-yield cultivar and a recently improved high-yield cultivar of rice (Oryza sativa L.) · 2007

    Opposite direction

  7. negative
    Chlorophyll content was lower in Nagina 22 than in Panvel by 11% at low-N supply.

    Physiological, Agronomical, and Proteomic Studies Reveal Crucial Players in Rice Nitrogen Use Efficiency under Low Nitrogen Supply · 2022 · compared with Panvel

    Opposite direction

  8. negative
    Increasing nitrogen application shifted the chlorophyll-formation threshold to higher temperature.

    Studies on the Character Manifestation in Chlorophyll Mutants of Rice : I. Virescent Mutants Sensitive to Low Temperature · 1977

    Opposite direction

76 papers more in this group

See all 85 papers →

phosphorus · physiology: pigments · Oryza sativa (rice)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this claim

  1. positive
    That treatment yielded high leaf chlorophyll content of 34.57.

    Contribution of phosphate-solubilizing bacteria in phosphorus bioavailability and growth enhancement of aerobic rice · 2011

    Same direction

  2. positive
    Phosphorus starvation significantly reduced total chlorophyll, phosphorus and nitrogen contents.

    Phosphorus Starvation Tolerance in Rice Through Combined Physiological, Biochemical, and Proteome Analyses · 2023

    Same directionAbout lacking this nutrient, so it counts the other way round

  3. positive
    Increasing P and K enhanced leaf chlorophyll content.

    Effects and Mechanisms of P and K Nutrients on Yield and Protein Content of Fodder Rice · 2002

    Same direction

  4. positive
    Humic acid with PSB gave chlorophyll-a of 1.38 mg g⁻¹ fresh weight at 60 DAS.

    Humic acid and phosphate solubilizing bacteria led phosphorous bioavailability for enhancing photosynthetic efficiency and productivity of direct-seeded rice · 2025

    Same direction

  5. positive
    PSB inoculation increased rice total chlorophyll by 68.70%.

    Halophilic phosphobacteria for raising vigorous growth improvement in Rice (Oryza sativa) · 2013 · compared with control

    Same direction

  6. positive
    Fertility treatment significantly improved chlorophyll content and leaf area index.

    Influence of Rice Husk and Fertility Levels on the Growth and Yield of Wetland Paddy ( Oryza sativa L.) · 2005

    Same direction

  7. positive
    The combined organic treatment gave higher total chlorophyll content, 3.5mgg-1fwt.

    Effect of organic sources of nutrients on growth physiology and yield components of scented rice (Oryza sativa L.) · 2022

    Same direction

  8. positive
    Higher N, P and K supply alleviated the chlorophyll decline under treatment.

    Response of Antioxidative Enzymes of Two Rice Cultivars to Ozone Exposure and Nutrient Supply · 2001

    Same direction

3 papers more in this group

See all 12 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.