Intervention effectmodel-written summary

Plant dry weight increased as the photoperiod for supplemental lighting was lengthened, with supplemental light at lower average PPFDs.

A claim from Longer Photoperiods with Adaptive Lighting Control Can Improve Growth of Greenhouse-grown ‘Little Gem’ Lettuce (Lactuca sativa) · 2020

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plant dry weight increased as the photoperiod for supplemental lighting was lengthened, with supplemental light at lower average PPFDs.

Taxon
Lactuca sativaLactuca sativat0
Treatment
photoperiod for supplemental lightinge1
Outcome
plant dry weighte1
Direction
increasede1
Setting
greenhouse experimentse0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

t0

“Lactuca sativa”

✓ located verbatim in the source · title, characters 112–126
e0

“We conducted two greenhouse experiments”

✓ located verbatim in the source · abstract, characters 652–691
e1

“As the photoperiod for supplemental lighting was increased and supplemental light was provided at lower average PPFD s, plant dry weight increased”

✓ located verbatim in the source · abstract, characters 888–1034

Title

Longer Photoperiods with Adaptive Lighting Control Can Improve Growth of Greenhouse-grown ‘Little Gem’ Lettuce (Lactuca sativa)

Geoffrey Weaver; Marc W. van Iersel HortScience 2020. doi:10.21273/hortsci14721-19

Other claims from this paper (3)

Record rev-e36889de7e99ca6b496194e85374fabf90fb38bb2fdbe7a0977c65e7f6aeda67 · schema claims-v0.9 · position 1 in the model’s answer

light · growth · Lactuca sativa (garden lettuce)Positive and negative results

300 papers: 243 positive, 57 negative or no effect

242 papers in the same direction as this claim · 54 in the opposite direction · 3 reporting no difference from an alternative

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

291 papers more in this group

See all 300 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.