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Fire in North American Wetland Ecosystems and Fire-Wildlife Relations: An Annotated Bibliography

187. Palmisano, A. W., Jr. 1967. Ecology of Scirpus olneyi and Scirpus robustus 
          in Louisiana coastal marshes. M.S. thesis. Louisiana State University, 
          Baton Rouge. 145 PP.

Factors affecting the establishment, growth, and propagation of Olney bulrush and saltmarsh bulrush were studied in Louisiana coastal marsh. Olney bulrush was associated with shallow water, total salts of 10,000 to 17,000 ppm, and pH of 4.1 to 7.9. Saltmarsh bulrush tolerated high salinity (12,000 to 22,000 ppm) and more fluctuation in water level (-15.2 to +12.7 cm). Both were dormant in winter. Olney bulrush flowered and set seed by early July, but seed production was only 0.00 to 11.07 kg/ha. Saltmarsh bulrush flowered later and seed did not mature until August. Production ranged from 880 to 2100 kg/ha. Marsh fire stimulated germination slightly. [From author's abstract]

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