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Nitrate accumulation and growth of Aster tripolium L. with a continuous and intermittent nitrogen supply
Stienstra, A.W. (1986). Nitrate accumulation and growth of Aster tripolium L. with a continuous and intermittent nitrogen supply. Plant Cell Environ. 9(4): 307-313. hdl.handle.net/10.1111/1365-3040.ep11611701
In: Plant, Cell and Environment. Blackwell: Oxford. ISSN 0140-7791, more
Peer reviewed article  

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Keywords
    Ecotypes; Growth; Aster tripolium L. [WoRMS]; Brackish water
Author keywords
    Nitrate accumulation

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  • Stienstra, A.W.

Abstract
    The 'tidal salt marsh' ecotype of the halophyte Aster tripolium L. was grown in a nutrient solution with either a continuous or an intermittent NO3- supply with either Cl- or SO42- as the alternative anion. With increasing periods of NO3- supply per week the rate of the dry weight increment increased. When NO3- was supplied for longer than 48 h per week, the dry weight and the organic-N content in the shoots hardly increased, whereas the NO3- content in shoots and roots increased further. With alternated supply of a nutrient solution containing NO3- with one containing Cl-, the internal NO3- content in the shoot was lower than in shoots grown in solutions in which NO3- alternated with SO42-. It is concluded, that NO3- does not have a specific function in osmoregulation.

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