Measures of Plant Surface-areas for Eurasian Watermilfoil and Water Stargrass

Pinar, Balci and Kennedy, J. H. (2003) Measures of Plant Surface-areas for Eurasian Watermilfoil and Water Stargrass. Journal of Aquatic Plant Management, 41, pp. 119-122.

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Plant surface areas were measured from samples of two common submersed aquatics with widely diverging morphologies: Eurasian watermilfoil ( Myriophyllum spicatum L.) and water stargrass ( Heteranthera dubia (Jacq.) MacM.). Measures for the highly dissected leaves of Eurasian watermilfoil involved development of a regression equation relating leaf length to direct measures of a subsample of leaf parts. Measures for the simple leaves of the stargrass were sums of measured triangles. Stem surfaces for both species were calculated as measured cylinders. Though the means of the stem length and leaf length were larger for stargrass samples, their mean surface area was 95 cm 2 which was less than the 108 cm 2 recorded for Eurasian watermilfoil samples. Relating surface area to dry weight for the stargrass was straightforward, with 1 mg of dry weight yielding an average 0.678 cm 2 of surface area. Biomass measures for the water milfoil were confounded by the additional weight of epiphytic algae persisting on cleaned samples. The results suggest that a lesstime consuming method for surface area measures of plants with highly dissected leaves and a caveat for using biomass measures to estimate surface area in such plants.

Item Type: Article
Title: Measures of Plant Surface-areas for Eurasian Watermilfoil and Water Stargrass
Personal Creator/Author:
Pinar, Balci
Kennedy, J. H.
Refereed: Yes
Journal or Publication Title: Journal of Aquatic Plant Management
Volume: 41
Page Range: pp. 119-122
Date: 2003
Issuing Agency: Aquatic Plant Management Society, Inc.
Uncontrolled Keywords: Myriophyllum spicatum, Heteranthera dubia, plant surface area, leaf morphology, submersed aquatic plants
Subjects: Biology
Item ID: 1792
Depositing User: Stephanie Haas
Date Deposited: 15 Dec 2008 19:38
Last Modified: 15 Dec 2008 19:38

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