Intervention effectmodel-written summary

Combined inoculation and reduced fertilizer gave the highest seed yield.

A claim from Synergistic effect of Azotobacter and phosphate solublizing bacteria (PSB) inoculation on yield of Rabi sunflower under dryland conditions · 2018

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined inoculation and reduced fertilizer gave the highest seed yield.

Taxon
sunflowerHelianthus annuust0
Treatment
seed treatment with liquid Azotobacter and PSB @ 25 ml each kg−1 seed coupled with 75% recommended N and P2O5e0
Interactor
AzotobacterAzotobactere0symbiont
Second interactor
PSBe0symbiont
Outcome
seed yielde0
Direction
higheste0
Value
12.73 q/hae0

Not reportedMaterialGeneCompoundOrgan / stageComparatorSettingQualifier

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“seed treatment with liquid Azotobacter and PSB @ 25 ml each kg−1 seed coupled with 75% recommended N and P2O5 recorded highest seed yield (12.73 q/ha)”

✓ located verbatim in the source · abstract, characters 794–944
t0

“sunflower”

✓ located verbatim in the source · title, characters 104–113

Title

Synergistic effect of Azotobacter and phosphate solublizing bacteria (PSB) inoculation on yield of Rabi sunflower under dryland conditions

D.R. Murumkar; D.V. Indi; V.M. Amrutsagar Indian Journal of Dryland Agricultural Research and Development 2018. doi:10.5958/2231-6701.2018.00007.6

Other claims from this paper (13)

Record rev-238aec565ffdba12f185a9e5e93020316b20151f884358fe4656b088b6b06029 · schema claims-v0.9 · position 11 in the model’s answer

Azotobacter · yield · Helianthus annuus (common sunflower)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this claim

  1. positive
    Combined PSB, VAM and Azotobacter inoculation produced higher sunflower seed yield than the listed alternative inoculations in both years.

    Response of biofertilizers and homo-brassinolide on growth, yield and oil content of sunflower (Helianthus annuus L.) · 2014 · compared with Azotobacter

    Same direction

  2. positive
    The highest sunflower grain yield, 4.556 ton/ha, was achieved with manure, Azotobacter and Pseudomonas together.

    Response of Sunflower Yield and Phytohormonal Changes to Azotobacter , Azospirillum , Pseudomonas and Animal Manure in a Chemical Free Agroecosystem · 2011

    Same direction

  3. positive
    EM-X enhanced sunflower productivity relative to other biofertilization treatments.

    Integration of EM-X Biofertilization and Sowing Methods on Encouragement of Sunflower Productivity and Charcoal Rot Control under Reclaimed Soil Conditions · 2017 · compared with other examined biofertilization treatments

    Same direction

  4. positive
    Application of 160 kg N ha -1 with seed priming with Azotobacter gave the highest grain yield.

    Effects of Seed Priming with Plant Growth Promoting Rhizobacteria (PGPR) on Grain Yield, Fertilizer Use Efficiency and Dry Matter Remobilization of Sunflower (Helianthus annus L.) with Various Levels of Nitrogen Fertilizer · 2012

    Same direction

  5. positive
    The combination had head diameter of 9.19 cm at 60 DAS.

    Effect of Levels of Nitrogen and Biofertilizers on Growth and Yield of Sunflower (Helianthus annuus L.) · 2021

    Same direction

  6. positive
    Combined Azospirillum AZP18 and Azotobacter MTCC446 inoculation favored higher sunflower growth and yield in pots.

    Multigeneric co-aggregation in Azospirillum brasilense AZP18 with other PGPR strains and its inoculation effect on the growth and yield of sunflower (Helianthus annuus ‘Sunbeam’) · 2011

    Same direction

  7. positive
    Full irrigation with Azotobacter and mycorrhiza gave the highest sunflower grain filling rate, at 1.95 g per day.

    Effect of Irrigation Withholding in Reproductive Stages and Biofertilizers on Quantity and Quality of Yield and Grain Filling Duration of Sunflower (Helianthus annus L.) · 2017

    Same direction

  8. positive
    Fertilization with 125% RDF + Azotobacter + S gave the highest number of seeds per capitulum in sunflower

    Influence of fertility levels and cytokinin on yield attributes and yields of sunflower (Helianthus annuus L.) · 2020 · compared with nutrient management treatments

    Same direction

2 papers more in this group

See all 11 papers →

phosphorus · yield · Helianthus annuus (common sunflower)Results differ

81 papers: 79 positive, 2 negative or no effect

78 papers in the same direction as this claim · 2 in the opposite direction

  1. no effect
    P application did not influence sunflower seed yield.

    Sunflower Response to Nitrogen and Phosphorus in Wheat‐Fallow Cropping Systems · 1997

    Opposite direction

  2. no effect
    Phosphorus rate had no influence on sunflower yield.

    Sunflower Type Influences Yield Prediction using Active Optical Sensors · 2019

    Opposite direction

  3. positive
    PSB enhanced head diameter, seed weight, kernel ratio and oil content.

    Performance of phosphate solubilizing bacteria for improving growth and yield of sunflower (Helianthus annuus L.) in the presence of phosphorus fertilizer · 2010 · compared with no application

    Same direction

  4. positive
    Sunflower growth and yield responded strongly to increasing phosphorus supply.

    EFFECTS OF PHOSPHORUS SUPPLY ON GROWTH, YIELD, AND YIELD COMPONENTS OF SAFFLOWER AND SUNFLOWER · 2011

    Same direction

  5. positive
    The 120 kg N plus 75 kg P2O5 rate produced the maximum number of seeds per head.

    Response of Nitrogen and Phosphorus Fertilizer and Plant Spacing on Growth and Yield Contributing Character of Sunflower · 1970

    Same direction

  6. positive
    Increasing phosphorus above 75% of the recommended rate raised sunflower head diameter, seeds per head and thousand-seed weight in uninoculated plants.

    Effect Of Va-Mycorrhiza On Growth And Yield Of Sunflower (Helianthus Annuus L.) At Different Phosphorus Levels · 2010

    Same direction

  7. positive
    Sunflower grain yield showed a significant response to N and P up to 60 kg N and 30 kg P2O5 ha-1 in three years of field experiments.

    Effect of Fertilizer Nitrogen and Phosphorus on the Grain Yield, Nutrient Uptake and Oil Quality of Sunflower · 1997

    Same direction

  8. positive
    Sunflower seed yield increased through 30 kg P2O5 ha−1.

    Yields and Nutrient Use-Efficiency in Groundnut-Sunflower Cropping System in Punjab, India · 2007

    Same direction

72 papers more in this group

See all 81 papers →

inoculation · yield · Helianthus annuus (common sunflower)Positive and negative results

55 papers: 48 positive, 7 negative or no effect

47 papers in the same direction as this claim · 5 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
    One rust inoculation at vegetative reduced sunflower oil yield by 13.

    Effects of simulated rust epidemics on the growth and yield of sunflower · 1977

    Opposite direction

  2. no effect
    Biofertilizer did not affect plant height, head weight or stem diameter of sunflower.

    Effects of Biofertilizer Application on Phenology and Growth of Sunflower (Helianthus annuus L.) Cultivars · 2011

    Opposite direction

  3. no effect
    Grain yield was not significantly affected by the microorganisms.

    Response of Sunflower Yield and Phytohormonal Changes to Azotobacter , Azospirillum , Pseudomonas and Animal Manure in a Chemical Free Agroecosystem · 2011

    Opposite direction

  4. negative
    Pathogen inoculation caused considerable changes in achene dry matter accumulation.

    Growth Analysis for Studying the Effect of the Fungal Pathogen Diaporthe helianthi on the Achene Dry Matter Accumulation per Head in Sunflower Hybrids · 2003

    Opposite direction

  5. negative
    Watering the inoculated plots 1 to 3 times decreased sunflower yield from 4690.95 kg/ha to 3815.55 kg/ha

    EFFECTS OF WATERING FREQUENCY ON THE SUNFLOWER VERTICILLIUM WILT OCCURRENCE AND SUNFLOWER YIELD · 2012

    Opposite direction

  6. no effect
    N160 without PGPR priming and N80 with Azotobacter priming gave similar grain yields.

    Effects of Seed Priming with Plant Growth Promoting Rhizobacteria (PGPR) on Grain Yield, Fertilizer Use Efficiency and Dry Matter Remobilization of Sunflower (Helianthus annus L.) with Various Levels of Nitrogen Fertilizer · 2012 · compared with N80 × seed priming with PGPR Azotobacter

    No difference from an alternative

  7. no effect
    Sunflower seed inoculation with Rhizobacterien plus 20 kg NI fed gave seed yield per feddan equal to fertilization with 30 kg NI fed.

    RESPONSE 0 F SOME SUNFLOWER CUL TIVARS TO SOME BIO-NITROGEN FERTILIZATION UNDR HILL SPACES · 2004 · compared with fertilization with 30 kg NI fed

    No difference from an alternative

  8. positive
    PSB enhanced head diameter, seed weight, kernel ratio and oil content.

    Performance of phosphate solubilizing bacteria for improving growth and yield of sunflower (Helianthus annuus L.) in the presence of phosphorus fertilizer · 2010 · compared with no application

    Same direction

46 papers more in this group

See all 55 papers →

3 of 4 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.