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Studies on Mineral Nutrition of Hydrilla verticillata
Published online by Cambridge University Press: 12 June 2017
Abstract
The effects of mineral element uptake on the growth and development of the aquatic plant hydrilla [Hydrilla verticillata (L.f.) Royle.] were studied in a short-term experiment under laboratory conditions. On a dry-weight basis, maximum growth of hydrilla plants was obtained at a 0.016 ppm P and 5 ppm Ca in the growing media. Hydrilla responded favorably to high concentrations of K (40 ppm in the growing media). The presence of 2,4-dinitrophenol (2,4-DNP) reduced uptake of K, Cu, Fe, Mn and did not significantly affect the uptake of Ca or P. Thus the uptake of K, Cu, Fe, and Mn by hydrilla appears to be dependent on metabolic energy.
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- Weed Biology and Ecology
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- Copyright © 1984 by the Weed Science Society of America
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