Intervention effectmodel-written summary

Reduced nutrients, increased vitamin B1 and picrolam induced conversion of non-FEC to FEC.

A claim from Formation of friable embryogenic callus in cassava is enhanced under conditions of reduced nitrate, potassium and phosphate · 2017

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Reduced nutrients, increased vitamin B1 and picrolam induced conversion of non-FEC to FEC.

Treatment
a medium with reducing nutrition (a 10-fold less concentration of nitrogen, potassium, and phosphate), the increased amount of vitamin B1 (10 mg/L) and the use of picrolame0
Outcome
reprogram non-FEC to FECe0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“using a medium with reducing nutrition (a 10-fold less concentration of nitrogen, potassium, and phosphate), the increased amount of vitamin B1 (10 mg/L) and the use of picrolam led to reprogram non-FEC to FEC.”

✓ located verbatim in the source · abstract, characters 440–650
t0

“cassava”

✓ located verbatim in the source · title, characters 43–50

Title

Formation of friable embryogenic callus in cassava is enhanced under conditions of reduced nitrate, potassium and phosphate

Yoshinori Utsumi; Chikako Utsumi; Maho Tanaka; et al. PLoS ONE 2017. doi:10.1371/journal.pone.0180736

Other claims from this paper (3)

Record rev-fb1de9dadc339fac42cbb6bf1dc025ca7ef041ca5358e665db59aaa25d0ea84d · schema claims-v0.9 · position 1 in the model’s answer

phosphorus · growth · Manihot esculenta (cassava)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

3 papers in the same direction as this claim · 1 in the opposite direction

  1. negative
    Phosphorus stress reduced leaf number by 41.8%.

    Responses of cassava (Manihot esculenta Crantz) cultivars to in vitro-induced phosphorus stress · 2018

    Opposite direction

  2. positive
    High NPK consistently produced relatively high cassava growth across water conditions.

    Managing cassava growth on nutrient poor soils under different water stress conditions · 2021

    Same direction

  3. positive
    Phosphorus fertilization increased cassava shoot biomass in acidic soil.

    Liming and phosphorus fertilization increase cassava root yield without affecting its cooking time · 2021

    Same direction

  4. positive
    The six fertilizer treatments significantly increased plant growth parameters versus control at both sites.

    Effect of Fertilizer Types on Nutrient Uptake and Yield of Cassava in Ondo Southwestern Nigeria Using Farmers’ Simulation Method · 2019 · compared with control

    Same direction

See all 5 papers →

potassium · growth · Manihot esculenta (cassava)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

3 papers in the same direction as this claim · 1 in the opposite direction

  1. no effect
    Potassium and micro fertilizers did not significantly change cassava root number or weight.

    POTASIUM AND MICRO FERTILIZERS APPLICATION FOR IMPROVING CASSAVA PRODUCTION HARVESTING AT 7 AND 10 MONTH AFTER PLANTING · 2020

    Opposite direction

  2. positive
    Potassium application increased cassava root and shoot biomass across cultivars.

    GENETIC VARIATION WITHIN CASSAVA GERMPLASM IN RESPONSE TO POTASSIUM · 2000

    Same direction

  3. positive
    High NPK consistently produced relatively high cassava growth across water conditions.

    Managing cassava growth on nutrient poor soils under different water stress conditions · 2021

    Same direction

  4. positive
    Farmyard manure and potassium combinations improved cassava growth.

    Cassava Growth and Biomass Yield Influenced by Land Cultivation Methods, Farmyard Manure and Potassium Fertilizer in the North-Western Part of Tanzania · 2025

    Same direction

See all 5 papers →

nitrogen · growth · Manihot esculenta (cassava)Positive and negative results

13 papers: 12 positive, 1 negative or no effect

11 papers in the same direction as this claim · 1 in the opposite direction

  1. negative
    Plasmalemma disturbance led to organoid enations.

    Étude de l'influence de quelques composés chimiques sur le contact parenchyme palissadique – parenchyme lacuneux : répercussion sur la morphogenèse du limbe de Manihot esculenta Crantz · 1990

    Opposite direction

  2. positive
    Increasing nitrogen supply enhanced cassava shoot dry mass more than root dry mass.

    Carbon Partitioning and Assimilation as Affected by Nitrogen Deficiency in Cassava · 2003

    Same direction

  3. positive
    High NPK consistently produced relatively high cassava growth across water conditions.

    Managing cassava growth on nutrient poor soils under different water stress conditions · 2021

    Same direction

  4. positive
    Two split applications of 90 kg N induced more cassava tuber growth than single or three split applications.

    Nitrogen Fertilizer Affects Growth, Yield, and N Recovery in Cassava (Manihot esculentaL. Crantz) · 2014 · compared with single or three split applications at 45 and 90 days after planting

    Same direction

  5. positive
    Nitrogen sources of ammonium nitrate or ammonium chloride plus succinate supported callus growth of all four cultivars.

    Tissue Culture of Cassava on Chemically Defined Media · 1978

    Same direction

  6. positive
    Late nitrogen application increased leaf area.

    Leaf area development and yield of cassava in response to pruning of shoots and the late supply of nitrogen and potassium · 2020

    Same direction

  7. positive
    Nitrogen deficiency drastically suppressed cassava seedling growth.

    Integrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency · 2025

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

  8. positive
    The six fertilizer treatments significantly increased plant growth parameters versus control at both sites.

    Effect of Fertilizer Types on Nutrient Uptake and Yield of Cassava in Ondo Southwestern Nigeria Using Farmers’ Simulation Method · 2019 · compared with control

    Same direction

4 papers more in this group

See all 13 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.