Intervention effectmodel-written summary

Nitrogen application advanced peak nicotine accumulation rate relative to no-N control.

A claim from Effects of Different Nitrogen Rates on the Growth and Nitrogen and Nicotine Accumulation in Flue-Cured Tobacco · 2008

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen application advanced peak nicotine accumulation rate relative to no-N control.

Taxon
flue-cured tobaccoe1
Treatment
nitrogen application treatmentse0
Outcome
nicotine accumulatione0
Direction
advancede0
Comparator
no-N controle0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

Verbatim

e0

“Compared with the no-N control, nitrogen application treatments advanced the arrival of the highest rates of accumulation in dry weight and nitrogen accumulation and nicotine accumulation of the whole plant”

✓ located verbatim in the source · abstract, characters 783–989
e1

“growth and the accumulation of nitrogen and nicotine in flue-cured tobacco”

✓ located verbatim in the source · abstract, characters 158–232

Title

Effects of Different Nitrogen Rates on the Growth and Nitrogen and Nicotine Accumulation in Flue-Cured Tobacco

Chunjian Li Journal of Southwest University 2008

Other claims from this paper (11)

Record rev-bf33caeb577d2fb5da507cd8bf2145ef546919b12529e7ab5d3dc46ff90004de · schema claims-v0.9 · position 8 in the model’s answer

nitrogen · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results

45 papers: 35 positive, 10 negative or no effect

34 papers in the same direction as this claim · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Adding a nitrogen source did not lower the high sulfate, cysteine and methionine pools of nitrogen-starved tobacco cells.

    Regulation of Sulfate Assimilation in Tobacco Cells · 1980 · compared with nitrogen-starved cells

    Opposite direction

  2. no effect
    Nitrogen supply did not affect whole-plant carbon isotope values at any harvest.

    Daytime leaf water use efficiency does not explain the relationship between plant N status and biomass water‐use efficiency of tobacco under non‐limiting water supply · 2015

    Opposite direction

  3. negative
    Lower N application reduced nicotine, anabasine and anatabine concentration in K326 and NC95.

    Genetics influence postharvest measurements of flue‐cured tobacco more than nitrogen application rate · 2020

    Opposite direction

  4. negative
    High nitrogen postponed nitrogen metabolism and disrupted carbon–nitrogen balance.

    Effects of Cooperation of Light and Nitrogen on the Content of Nitric Compound,Antioxidant System and Quality of Flue-cured Tobacco · 2010

    Opposite direction

  5. no effect
    Nitrogen did not significantly affect grade percentages, grade index or 100-leaf weight.

    Study on cultivation practices for flue-cured tobacco variety T29 introduced from Zimbabwe · 2011

    Opposite direction

  6. negative
    first class and secondary class tobacco’s proportion declined above 180 kg/hm2 nitrogen fertilizer and N:K ratio 3.

    Effect of Different Nitrogen Application Rate and Nitrogen, Phosphorous and Potassium Ratio on the Yield and Quality of Flue-cured Tobacco · 2011

    Opposite direction

  7. no effect
    Other leaf element contents did not vary significantly as nitrate and ammonium proportions increased.

    Effects of Irrigation and Nitrogen Source on Nutrition and Yield and Quality of Flue-cured Tobacco · 2006

    Opposite direction

  8. negative
    Excess nitrogen late in growth led to excessive nicotine in upper tobacco leaves.

    Nitrogen Transformation in Soil and its Effects on Nicotine Content of Upper Flue-cured Tobacco Leaves · 2003

    Opposite direction

36 papers more in this group

See all 45 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.