Intervention effectmodel-written summary

Tobacco callus growth reached nearly 200 after eight weeks on nutrient-rich, low-auxin medium.

A claim from A Broad Spectrum Tissue Culture Experiment with Tobacco (Nicotiana tabacum) Pith Tissue Callus · 1974

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tobacco callus growth reached nearly 200 after eight weeks on nutrient-rich, low-auxin medium.

Treatment
a medium high in minerals, cytokinins, sucrose, growth factors and amino acids and low in auxinse0
Outcome
growthe0
Direction
maximume0
Value
nearly 200e0
Qualifier
after eight weekse0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Tobacco (Nicotiana tabacum)”

✓ located verbatim in the source · title, characters 48–75
e0

“growth (increase in mass divided by initial mass of fresh matter) varied considerably reaching a maximum of nearly 200 after eight weeks on a medium high in minerals, cytokinins, sucrose, growth factors and amino acids and low in auxins”

✓ located verbatim in the source · abstract, characters 418–654

Title

A Broad Spectrum Tissue Culture Experiment with Tobacco (Nicotiana tabacum) Pith Tissue Callus

R. A. de FOSSARD; AUNG MYINT; EDWARD C. M. LEE Physiologia Plantarum 1974. doi:10.1111/j.1399-3054.1974.tb03116.x

Other claims from this paper (4)

Record rev-58c7dba186ce98ec9b20d55146752143d6afd983a47d4cfc9b93ae764de360b9 · schema claims-v0.9 · position 3 in the model’s answer

sucrose · growth · Nicotiana tabacum (tobacco)Positive and negative results

16 papers: 13 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. no effect
  4. positive
  5. positive
  6. positive
  7. positive
  8. positive

7 papers more in this group

See all 16 papers →

class · growth · Nicotiana tabacum (tobacco)Positive and negative results

34 papers: 26 positive, 8 negative or no effect

25 papers in the same direction as this claim · 8 in the opposite direction

  1. no effect
  2. negative
  3. negative
  4. negative
  5. negative
  6. no effect
  7. negative
  8. negative

25 papers more in this group

See all 34 papers →

in vitro · growth · Nicotiana tabacum (tobacco)Positive and negative results

40 papers: 32 positive, 8 negative or no effect

31 papers in the same direction as this claim · 8 in the opposite direction

  1. negative
  2. negative
  3. negative
  4. negative
  5. negative
  6. negative
  7. negative
  8. no effect

31 papers more in this group

See all 40 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.