Claim · model-written summary
At PPF 500, increasing blue light had no statistically significant effect on lettuce growth.
- Taxon
- lettuce
Lactuca sativae2 - Treatment
- increasing blue light in increments from 11 to 28%e1
- Outcome
- growthe1
- Direction
- no statistically significant effecte2
- Qualifier
- higher PPF (500)e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“At the higher PPF (500), increasing blue light in increments from 11 to 28% reduced growth in tomato, cucumber, and pepper by 22, 26, and 14% respectively”
e2“but there was no statistically significant effect on radish, soybean, lettuce or wheat”
Title
Sensitivity of Seven Diverse Species to Blue and Green Light: Interactions with Photon Flux
M. Chase Snowden; Kevin R. Cope; Bruce Bugbee PLoS ONE 2016. doi:10.1371/journal.pone.0163121
Other claims from this paper (12)
- Intervention effect At PPF 500, increasing blue light from 11 to 28% reduced tomato growth by 22%.
- Intervention effect At PPF 500, increasing blue light from 11 to 28% reduced cucumber growth by 26%.
- Intervention effect At PPF 500, increasing blue light from 11 to 28% reduced pepper growth by 14%.
- Intervention effect At PPF 500, increasing blue light had no statistically significant effect on radish growth.
- Intervention effect At PPF 500, increasing blue light had no statistically significant effect on soybean growth.
- Intervention effect At PPF 500, increasing blue light had no statistically significant effect on wheat growth.
- Intervention effect At PPF 200, increasing blue light reduced tomato growth by 41%; no other species responded.
- Intervention effect Increasing green light from 0 to 30% had a relatively small effect on growth, leaf area and net assimilation at low or high PPF.
- Intervention effect Growth of three of the seven species was not reduced by 93% green light compared with broad spectrum treatments.
- Mechanism The effects of blue light on growth were mediated by changes in leaf area and radiation capture.
- Association Blue light had minimal effects on whole-plant net assimilation.
- Mechanism Responses to low blue or high green light are consistent with a shade avoidance response.