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Title: 'Carolina' session growth, reproduction, and biomass of hydrilla in North Carolina

Technical Report ·
OSTI ID:6441640

Certain morphological and physiological characteristics are associated with the phenomenal ability of hydrilla to invade an aquatic system, overtop more desirable native rooted aquatic species, and form very dense monospecific mats. One of these adaptations is the formation of tubers which are vegetative propagules formed at the ends of positively geotropic rhizomes (Van, Haller, and Garrard 1978). Tubers develop in the hydrosoil and thus are very resistant to all control methods. Also, hydrilla's ability to become established and photosynthesize under low light intensities is unequaled by any other submersed rooted aquatic macrophyte (Van, Haller, and Bowes 1976). Hydrilla growing in lakes in Umstead State Park in North Carolina was first identified by William Haller in 1981 and had apparently been established in the area for several years. Since its initial identification, hydrilla has been found in 18 other water bodies, all in Wake Country. Hydrilla has the potential to become a very serious problem as there are presently no effective means of halting its spreading or eradicating it after infestation occurs. For effective management in North Carolina, knowledge of the growth, reproduction, and biomass of hydrilla in North Carolina is needed. This research addresses these questions.

Research Organization:
North Carolina State Univ., Raleigh (USA). Dept. of Biology
OSTI ID:
6441640
Report Number(s):
AD-P-003613/7
Resource Relation:
Other Information: This article is from 'Proceedings of the Annual Meeting, Aquatic Plant Control Research Program (18th) Held at Raleigh, North Carolina on 14-17 November 1983,' AD-A142 827, p154-161
Country of Publication:
United States
Language:
English