Abstract
The effects of deoxygenation of the root environment were studied in two ecologically different Salicornia-microspecies,* viz. S. dolichostachya, which is more or less confined to the lower levels of coastal salt marshes, and S. ramosissima, predominantly occurring in the upper marsh. Deoxygenation of the root environment resulted in a reduced relative growth rate, associated with a decreased elongation rate of individual roots. The reduction in growth rate could not be attributed to a deteriorated carbon balance or to a reduced uptake of essential nutrients. With respect to all the parameters measured, both species showed an identical response. Oxygen deficiency per se apparently does not act as a selective factor for these microspecies.
Nomenclature follows Tutin, T. G., Heywood, N. A., Burgess, D. H., Walters, S. M. & Webb, D. A., 1964. Flora Europaea. Vol. I. Cambridge University Press, Cambridge.
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© 1987 Dr W. Junk Publishers, Dordrecht/Boston/Lancaster
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Schat, H., Van Der List, J.C., Rozema, J. (1987). Ecological differentiation of the microspecies Salicornia dolichostachya Moss and Salicornia ramosissima J. Woods. In: Huiskes, A.H.L., Blom, C.W.P.M., Rozema, J. (eds) Vegetation between land and sea. Geobotany, vol 11. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4065-9_13
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DOI: https://doi.org/10.1007/978-94-009-4065-9_13
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