Effects of clipping purple loosestrife seedlings during a simulated wetland drawdown
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Authors: T. S. Gabor, and H. R. Murkin
Date: 1990
Journal: Journal of Aquatic Plant Management
Volume: 28
Number: 2
Pages: 98-100
Summary of Methods: The top 2 cm of soil from a flooded wetland near Smith Falls, Ontario with an established purple loosestrife population was collected and transported back to the greenhouse in south-central manitoba. Soil was placed into trays, watered to saturate soil surface and allowed to germinate. Seedlings were clipped at the soil surface 21, 42 or 63 days following germination. The number of seedlings per treatment was counted every week for 10 weeks.
Article Summary / Main Points: Clipping 21 days after germination reduced overall seedling numbers and the population was not able to re-establish vegetatively and had to rely on new seed germination. Clipping 42 and 63 days after germination indicate that the root systems are strong enough to enable plants to regenerate two new shoots where one had been clipped, thereby increasing the density of the population.
Vegetation Types: Riparian and Wetlands
MLRA Ecoregions: Not Applicable
Agrovoc Control Words: Weeds Rangelands Riparian
Article Review Type: refereed
Article Type: Experimental Research
Keywords: lythrum salicaria l., weed density, seedling establishment, wetland weed, root system, weed management
Annotation: This simple greenhouse study is very important to the direction of future research examining potential control methods for purple loosestrife.
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