Effects of ozone on solidago albopilosa, an endangered species of goldenrod from central Kentucky
- USDA Forest Service, Dry Branch, GA (United States)
Solidago albopilosa Braun is an endangered species of goldenrod that is found in a very limited area of central Kentucky. The reasons for the limited distribution of this species are not known. The Daniel Boone National Forest was concerned that increased in ambient ozone might endanger the survival of this species. Little work has been done to assess the sensitivity of goldenrods to ozone and apparently none has been done on this endangered species. Plants were exposed to either ambient, half ambient or twice ambient concentrations of ozone for 39 days in mid summer using June 1992 data from Mammoth Cave National Park as ambient. Few statistically significant effects were found; however, consistent trends toward lower leaf and stem biomass, leaf area and less height growth in the higher ozone treatments were seen. Carbon allocation patterns appear to be different with plants in the higher treatment allocating more to reproductive structures. Net photosynthesis and leaf conductance were measured several days after fumigations ended and plants in the half ambient treatment had the lowest rates and plants in the highest treatment had the highest rate. No characteristics visible ozone injury was seen. This study suggests that ozone has little effect on Solidago albopilosa; however, concentrations used were quite low.
- OSTI ID:
- 7016334
- Report Number(s):
- CONF-940894-; CODEN: BECLAG
- Journal Information:
- Bulletin of the Ecological Society of America; (United States), Vol. 75:2; Conference: Annual Ecological Society of America (ESA) meeting: science and public policy, Knoxville, TN (United States), 7-11 Aug 1994; ISSN 0012-9623
- Country of Publication:
- United States
- Language:
- English
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