Claim · model-written summary
Light greatly increased cold hardiness.
- Taxon
- Hedera helix L. var. Thorndale
Hedera helixt0 - Treatment
- lighte0
- Outcome
- degree of hardinesse0
- Direction
- enhancese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although light greatly enhances the degree of hardiness attained, cold acclimation is not obligatorily linked to a light requirement.”
t0“Hedera helix L. var. Thorndale”
Title
The Role of Light in Cold Acclimation of Hedera helix L. var. Thorndale
Peter L. Steponkus; F. O. Lanphear PLANT PHYSIOLOGY 1968. doi:10.1104/pp.43.2.151
Other claims from this paper (8)
- Observation Cold acclimation could occur without light.
- Intervention effect Photoperiods of 8 to 24 hours equally promoted maximum hardiness.
- Intervention effect Low light intensities stimulated maximum hardiness.
- Intervention effect Short photoperiods stimulated maximum hardiness.
- Association Longer photoperiods proportionally increased hardiness only in prestarved stems.
- Intervention effect CO(2) exclusion decreased hardiness.
- Intervention effect High concentrations of photosynthetic inhibitors decreased hardiness.
- Observation Hardiness under these treatments did not fall to the dark control level.