Intervention effectmodel-written summary

Vertical bulb diameter was not strongly affected.

A claim from EFFECT OF VAM AND INORGANIC FERTILIZERS ON GROWTH AND YIELD OF ONION (ALLIUM CEPA L.) · 2002

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Vertical bulb diameter was not strongly affected.

Taxon
ONIONAllium cepat0
Treatment
VAM + N + P + Ke1
Interactor
VAMe1symbiont
Outcome
Vertical diametere0
Direction
not so affectede0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Vertical diameter was not so affected.”

✓ located verbatim in the source · abstract, characters 870–908
e1

“maximum under VAM + N + P + K”

✓ located verbatim in the source · abstract, characters 560–589
t0

“ONION (ALLIUM CEPA L.)”

✓ located verbatim in the source · title, characters 63–85

Title

EFFECT OF VAM AND INORGANIC FERTILIZERS ON GROWTH AND YIELD OF ONION (ALLIUM CEPA L.)

Alok Singh; Sarvjeet Singh; B P Singh Vegetable Science 2002

Other claims from this paper (7)

Record rev-9bb35f9667e87d1b0ff4d9eca393318ff198aed37ddbed0867a6bce3aa11fd76 · schema claims-v0.9 · position 5 in the model’s answer

mycorrhiza · growth · Allium cepa (onion)Results differ

53 papers: 48 positive, 5 negative or no effect

5 papers in the same direction as this claim · 47 in the opposite direction

  1. positive
    Mycorrhizal onion plants kept at 6 h daylength and 13,000 lux were 3.5 times heavier than non-inoculated controls.

    PLANT GROWTH RESPONSES TO VESICULARARBUSCULAR MYCORRHIZA · 1974 · compared with non‐inoculated controls

    Opposite direction

  2. positive
    Mycorrhizal inoculation increased onion shoot dry weight up to twelve-fold.

    PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA · 1971

    Opposite direction

  3. positive
    Mycorrhizal onion plants outweighed nonmycorrhizal controls across soil salinity levels of 1 to 12 mmho/cm.

    Improved Growth of Onion and Bell Pepper in Saline Soils by Two Vesicular‐Arbuscular Mycorrhizal Fungi · 1980 · compared with uninoculated nonmycorrhizal controls

    Opposite direction

  4. positive
    Glomus monosporus inoculation increased onion dry weights versus nonmycorrhizal plants.

    Influence of Mycorrhizal Fungi on the Mineral Nutrition and Yield of Onion in Saline Soil1 · 1983 · compared with nonmycorrhizal plants

    Opposite direction

  5. positive
    VAM onion plants had five to six times the total dry mass of non-VAM plants.

    Aggregation of a Silty Clay Loam Soil by Mycorrhizal Onion Roots · 1986 · compared with non‐VAM plants

    Opposite direction

  6. positive
    Mycorrhiza enhanced onion growth at all light levels, most strongly at 10 klux.

    EFFECTS OF LIGHT INTENSITY ON THE FORMATION OF VESICULAR‐ARBUSCULAR ENDOMYCORRHIZAS ON ALLIUM CEPA BY GIGASPORA CALOSPORA · 1977

    Opposite direction

  7. positive
    Mycorrhizal infection enhanced onion shoot growth.

    Relative effectiveness of indigenous populations of vesicular-arbuscular mycorrhizal fungi from four sites in the Negev · 2013

    Opposite direction

  8. positive
    AM inoculation significantly increased onion shoot and root growth at the 1× organic-fertilizer rate.

    Evaluation of commercial inorganic and organic fertilizer effects on arbuscular mycorrhizae formed by Glomus intraradices · 2004

    Opposite direction

44 papers more in this group

See all 53 papers →

nitrogen · growth · Allium cepa (onion)Results differ

81 papers: 71 positive, 10 negative or no effect

10 papers in the same direction as this claim · 70 in the opposite direction

  1. positive
    69 kg N ha-1 increased plant height by about 10.

    Growth, bulb yield and quality of onion ( Allium cepa L.) as influenced by nitrogen and phosphorus fertilization on vertisol I. growth attributes, biomass production and bulb yield · 2011 · compared with unfertilized check

    Opposite direction

  2. positive
    Increased N supply increases N inflow, N concentration in plant tissues and plant growth in Allium cepa, except in severely P-limited plants.

    EFFECTS OF MYCORRHIZAL INFECTION ON PLANT GROWTH, NITROGEN AND PHOSPHORUS NUTRITION IN GLASSHOUSE‐GROWN ALLIUM CEPAL. · 1986

    Opposite direction

  3. positive
    Nitrate alone or with NH4-N increased leaf fresh weight, leaf dry weight and leaf area of onion compared with NH4-N as the sole N source.

    Onion Plant Growth, Bulb Quality, and Water Uptake following Ammonium and Nitrate Nutrition · 1991 · compared with NH 4 -N as the sole N source

    Opposite direction

  4. positive
    Near the critical photoperiod, the lowest nitrogen concentration gave greatest onion bulb development.

    Interaction of Nitrogen Nutrition and Photoperiod as Expressed in Bulbing and Flower-Stalk Development of Onion · 1945 · compared with highest concentration

    Opposite direction

  5. positive
    large bulb (> 76 mm in diameter) was higher with SCU than preplant urea under low N

    Sulfur-coated Urea as a Slow-release Nitrogen Source for Onions · 1988 · compared with preplant urea

    Opposite direction

  6. positive
    Nitrogen significantly affected most onion growth parameters and bulb characters, which peaked at 138 kg N ha -1.

    Influence of Nitrogen and Phosphorus Application on Bulb Yield and Yield Components of Onion (Allium Cepa L.) · 2018

    Opposite direction

  7. positive
    At 120 kg N/ha onion bulb diameter was highest at 6.47 cm.

    Response of Rabi Onion cv. Nasik Red to nitrogen and Potassium Fertilizer · 2001

    Opposite direction

  8. positive
    Nitrogen and sulfur interaction significantly increased onion growth traits.

    Effects of Different Nitrogen and Sulfur Fertilizer Rates on Growth, Yield, Quality and Nutrient Uptake of Onion (Allium cepa L.) at Shewa Robit, North Shewa, Ethiopia · 2021

    Opposite direction

72 papers more in this group

See all 81 papers →

phosphorus · growth · Allium cepa (onion)Results agree

32 papers: 32 positive, 0 negative or no effect

31 in the opposite direction

  1. positive
    Soluble phosphate stimulated onion growth more than mycorrhiza under intermediate light.

    PLANT GROWTH RESPONSES TO VESICULARARBUSCULAR MYCORRHIZA · 1974 · compared with mycorrhiza

    Opposite direction

  2. positive
    Phosphate addition increased onion shoot dry weight up to nineteen-fold.

    PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA · 1971

    Opposite direction

  3. positive
    AMF inoculation with 120 kg P fertilizer increased onion fresh and dry weights.

    Use of mycorrhizal fungi and phosphorus fertilization to improve the yield of onion (Allium cepa L.) plant · 2021

    Opposite direction

  4. positive
    PSB-enriched biochar favored Allium cepa plant growth over five weeks.

    Simultaneous bioconversion of lignocellulosic residues and oxodegradable polyethylene by Pleurotus ostreatus for biochar production, enriched with phosphate solubilizing bacteria for agricultural use · 2019

    Opposite direction

  5. positive
    BC 500 /PSB increased onion germination.

    Production of pine sawdust biochar supporting phosphate-solubilizing bacteria as an alternative bioinoculant in Allium cepa L., culture · 2022

    Opposite direction

  6. positive
    Coating onion seeds with an antioxidant (starch phosphate) proved beneficial for preserving their viability during storage at room temperature.

    Rancidity as a factor in the loss of viability of pine and other seeds · 1958

    Opposite direction

  7. positive
    Plant height of onion was longest (60.1 cm) when N:P2O5:S was applied at 73.5:92:16.95 kg ha-1.

    Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia · 2019

    Opposite direction

  8. positive
    Adding PSB to 100% RDF improved onion growth relative to RDF alone.

    Optimizing plant growth, nutrient uptake, and yield of onion through the application of phosphorus solubilizing bacteria and endophytic fungi · 2024 · compared with RDF alone

    Opposite direction

23 papers more in this group

See all 32 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.