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Effects of drawdowns and dessication on tubers of hydrilla, an exotic aquatic weed

Published online by Cambridge University Press:  20 January 2017

Robert D. Doyle  and
R. Michael Smart
R. Michael Smart
Affiliation:
US Army Engineer Research and Development Center, Lewisville Aquatic Ecosystem Research Facility, P.O. Box 446, Lewisville, TX 75056
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Abstract

Subterranean turions (tubers) of hydrilla lose viability when desiccated. Experimental data showed that freshly collected tubers had a moisture content between 50 and 60% and more than 90% viability. When desiccated, there was an approximate 2% increase in tuber mortality with each percent decline in moisture content. However under field conditions, the tuber bank within the exposed sediments of a northern Texas reservoir showed no decline in number or tuber viability throughout a 12-mo continuous drawdown. Apparently, the buried tubers were never subject to sufficient dessication to damage them. Finally, an experimental pond with an extensive hydrilla tuber bank was manipulated through six flood/drawdown cycles to determine the effects of short-term drawdowns on tuber survival and quiescence. Initially, the pond had a tuber bank of about 676 and 305 tubers m−2 in the shallow and deep zones, respectively. Although the tuber number was reduced to fewer than 15 to 30 tubers m−2 by these repetitive drawdowns, hydrilla tubers were not eradicated from the pond.

Keywords

Hydrilla, Hydrilla verticillata (L.F.) Royle HYLLIAquatic weedssubmersed plantsphysical controldewateringdrawdownHYLLI
Type
Research Article
Information
Weed Science , Volume 49 , Issue 1 , February 2001 , pp. 135 - 140
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Balciunas, J. K. and Purcell, M. F. 1991. Distribution and biology of a new Bagous weevil (Coleoptera, Curculionidae) which feeds on the aquatic weed Hydrilla verticillata . J. Aust. Entomol. Soc. 30:333–338.Google Scholar
Barko, J. W. and Smart, R. M. 1986. Sediment-related mechanisms of growth limitation in submersed macrophytes. Ecology 67:1328–1340.CrossRefGoogle Scholar
Benhart, E. A. and Duniway, J. M. 1986. Decay of pondweed and hydrilla hibernacula by fungi. J. Aquat. Plant Manag. 24:20–23.Google Scholar
Bowes, G. E., Van, T. K., Garrard, L. A., and Haller, W. T. 1977. Adaptation to low light levels by hydrilla. J. Aquat. Plant Manag. 15:32–35.Google Scholar
Godfrey, K. E. and Anderson, L.W.J. 1994. Feeding of Bagous affinis (Coleoptera: Circulionidae) inhibits germination of hydrilla tubers. Fla. Entomol. 77:480–488.Google Scholar
Haller, W. T., Fox, A. M., and Hanlon, C. A. 1992. Inhibition of hydrilla tuber formation by bensulfuron methyl. J. Aquat. Plant Manag. 30:48–49.Google Scholar
Haller, W. T., Miller, J. L., and Garrard, L. A. 1976. Seasonal production and germination of Hydrilla vegetive propagules. J. Aquat. Plant Manag. 14:26–29.Google Scholar
Haller, W. T. and Sutton, D. L. 1975. Community structure and competition between hydrilla and vallisneria. Hyacinth Control J. 13:48–50.Google Scholar
Harlan, S. M., Davis, G. J., and Pesacreta, G. J. 1985. Hydrilla in three North Carolina lakes. J. Aquat. Plant Manag. 23:68–71.Google Scholar
Langeland, K. A. 1993. Hydrilla response to mariner applied to lakes. J. Aquat. Plant Manag. 31:175–178.Google Scholar
Langeland, K. A. 1996. Hydrilla verticillata (L.f.) Royle (Hydrocharataceae), “The perfect aquatic weed.” Castanea 61:293–304.Google Scholar
Langeland, K. A. and LaRoche, F. B. 1992. Hydrilla growth and tuber production in response to bensulfuron methyl concentration and exposure time. J. Aquat. Plant Manag. 30:53–58.Google Scholar
Miller, J. 1975. Tuberization and Tuber Dormancy in Hydrilla verticillata (L.f.) Royle. Ph.D. dissertation. University of Florida, Gainesville, FL. 97 p.Google Scholar
Miller, J., Haller, W. T., and Garrard, L. A. 1976. Some characteristics of hydrilla tubers taken from Lake Ocklawaha during drawdown. J. Aquat. Plant Manag. 14:29–31.Google Scholar
Miller, J. D., Haller, W. T., and Glenn, M. S. 1993. Turion production by dioecious hydrilla in north Florida. J. Aquat. Plant Manag. 31:101–105.Google Scholar
Netherland, M. D. 1999. Management Impacts on the Quiescence and Sprouting of Subterranean Turions of Dioecious Hydrilla [Hydrilla verticillata (L.f.) Royle]. Ph.D. dissertation. University of Florida, Gainesville, FL. 191 p.Google Scholar
Pieterse, A. H. 1981. Hydrilla verticillata—a review. Abstr. Trop. Agric. 7:9–34.Google Scholar
Smart, R. M., Madsen, J. D., Snow, J. R., and Dick, G. O. 1995. Physical and Environmental Characteristics of Experimental Ponds at the Lewisville Aquatic Ecosystem Research Facility. Vicksburg, MS: U.S. Army Engineer Waterways Experiment Station Miscellaneous Paper A-95-2.Google Scholar
Steward, K. K. 1997. Influence of photoperiod on tuber production in various races of hydrilla (Hydrilla verticillata). Hydrobiologia 354:57–62.CrossRefGoogle Scholar
Sutton, D. L. 1996. Depletion of turions and tubers of Hydrilla verticillata in the North New River Canal, Florida. Aquat. Bot. 53:121–130.CrossRefGoogle Scholar
Sutton, D. L. and Portier, K. M. 1985. Density of tubers and turions of hydrilla in South Florida. J. Aquat. Plant Manag. 23:64–67.Google Scholar
Thakore, J. N., Haller, W. T., and Shilling, D. G. 1997. Short-day exposure period for subterranean turion formation in dioecious hydrilla. J. Aquat. Plant Manag. 35:60–63.Google Scholar
Van, T. K., Haller, W. T., and Bowes, G. 1976. Comparison of the photosynthetic characteristics of three submersed aquatic plants. Plant Physiol. 58:761–768.Google Scholar
Van, T. K., Haller, W. T., and Garrard, L. A. 1978. The effect of day length and temperature on hydrilla growth and tuber production. J. Aquat. Plant Manag. 16:57–59.Google Scholar
Van, T. K. and Steward, K. K. 1990. Longevity of monoecious hydrilla propagules. J. Aquat. Plant Manag. 28:74–76.Google Scholar