Claim · model-written summary
Fir and spruce had similar active to total xanthophyll ratios.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“both species showed similar ratios of active to total xanthophylls”
e1“fir seedlings had a greater total pool than spruce”
Title
Plasticity in Response to Changing Light Environment for Red Spruce and Balsam Fir
Sarah Zazzaro DigitalCommons (California Polytechnic State University) 2009
Other claims from this paper (10)
- Observation Fir had a larger total xanthophyll pool than spruce, though active ratios were similar.
- Observation Fir and spruce had similar photochemical and nonphotochemical quenching ratios.
- Intervention effect High light decreased fir photochemical efficiency less than red spruce.
- Observation Spruce seedlings had greater biomass, height and shoot allocation than fir.
- Observation Spruce had greater photosynthetic rates during both years.
- Observation Fir allocated more resources to photoprotection and roots.
- Observation Spruce allocated more to growth, biomass and photosynthesis.
- Observation Spruce had greater foliage and height growth.
- Mechanism The authors expect spruce to compete better after disturbance if moisture is sufficient and partial overstory moderates light.
- Mechanism The authors infer that balsam fir strategy is superior in high energy settings with correlated light and moisture stress.