Adventitious Root Production and Survival of Purple Loosestrife (Lythrum salicaria) Shoot Sections
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Citation:The Ohio Journal of Science. v97, n1 (March, 1997), 2-4
Purple loosestrife, Lythrum salicaria, notorious for successful wetland invasions, is a target of control measures including methods which produce shoot fragments. We document rejuvenation of purple loosestrife shoot sections and discuss the potential for vegetative reproduction through these fragments. Cut shoots (5, 10, and 15 cm long) were maintained in a greenhouse for four weeks. Approximately 80% of the shoots survived with production of adventitious roots and lateral shoots. Quantitative production of root biomass and lateral shoots was dependent on shoot length. Survival was not dependent on shoot length. Survival was greater among plants from drier habitats (100%) than from wetter soils (53%) and could not be predicted by pigmentation changes or necrosis. From a management perspective, fragment removal must follow mechanical eradication attempts in order to eliminate these vegetative propagules and prevent incidental recolonization.
Author Institution: Department of Biological Sciences and Water Resources Research Institute, Kent State University
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