The water economy of the sea grass Thalassia testudinum |
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| Authors: | F Gessner |
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| Institution: | (1) Abteilung Meeresbotanik, Institut für Meereskunde an der Universität Kiel, Kiel, Germany (FRG);(2) Instituto Colombo-Aleman de Investigaciones Cientificas, Santa Marta, Punta de Betin, Colombia;(3) Abteilung Meeresbotanik, Institut für Meereskunde, Hohenbergstraße 2, 23 Kiel, Germany (FRG) |
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| Abstract: | The osmotic values in the leaves of Thalassia testudinum
Banks ex König, collected from the natural habitat, were found to be 32 atm; the relative transpiration was 100%. Electronmicroscopical analysis of the cuticle reveals many perforations. The critical sublethal water deficit lies near 65%. In dense meadows the green surface area of the plants amounts to 18.56 m2/m2 bottom area. |
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