Abstract
In an experimental study conducted in north-central India, four plant species were either clipped weekly, clipped every 2 weeks, or left unclipped while growing at one of three water levels (0, 3 or 13 cm above the soil surface). When clipped underwater, individuals of three emergent species, Ipomoea aquatica Forssk., Paspalidium punctatum A. Camus, and Paspalum distichum L. usually died, but those of Nymphoides cristatum Kuntze did not. Clipped plants of N. cristatum had as much total biomass as unclipped plants, with increased mean shoot biomass but reduced mean root biomass in 3 cm of water. The three emergent species lived when clipped every 2 weeks in 0 cm of water. Clipped plants of emergents had less total mass and less root mass than unclipped plants in 0 cm of water. In a field study in a monsoonal wetland in the Keoladeo National Park, plants of Ipomoea aquatica and Paspalum distichum, died when clipped underwater.
Published Version
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