Claim · model-written summary
Late season grasses comprised 25.2% of the end-of-season control herbage.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
e4“Late season grasses (Setaria spp., Digitaria ssp., etc.) comprise 25.2% of the end-of-season control herbage and as much as 61.4% of the SO/sub 2/ stresses stands”
Title
Plant community repair following sulfur dioxide stress on an old-field ecosystem
W. D. Cocking OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1974
Other claims from this paper (13)
- Intervention effect Single and repeated sulfur dioxide fumigation resulted in foliar necrosis in plant community plots.
- Intervention effect By late summer, living tissue in fumigated plots equalled control levels.
- Intervention effect Growth rates of most species increased during the recovery following sulfur dioxide stress.
- Observation The recovery after sulfur dioxide stress involved restructuring of the plant community species composition.
- Intervention effect Late season grasses comprised as much as 61.4% of the stands under sulfur dioxide stresses, compared with control.
- Association The interval between sulfur dioxide stresses had a significant effect on the plant community.
- Intervention effect A brief one-day separation between stresses resulted in a greater pulse of damage.
- Intervention effect A brief one-day separation between stresses resulted in higher subsequent growth rates.
- Intervention effect More widely spaced stresses (1/2-month) produced greater total damage.
- Intervention effect More widely spaced stresses (1/2-month) produced more extensive changes in species composition.
- Intervention effect Photosynthetic potential in the balance of the summer was reduced by 17.0% by one fumigation.
- Intervention effect Photosynthetic potential in the balance of the summer was reduced by 23.8% by two stresses over a brief interval.
- Intervention effect Photosynthetic potential in the balance of the summer was reduced by 31.6% when the perturbations were separated by one-half month.