@article {384, title = {Interacting influence of cold stratification treatment and osmotic potential on seed germination of Triglochin maritima L.}, journal = {Acta Universitatis Latviensis}, volume = {723}, year = {2007}, pages = {115{\textendash}122}, abstract = {

The effect of cold stratification treatment and isoosmotic NaCl and polyethyleneglycol (PEG) concentrations on germination of Triglochin maritima seeds was assessed. The highest (400 mM) NaCl concentration caused a significant decrease in germination percentage and no germination was observed at the two highest (64 and 128 mM) PEG concentrations. The large difference in germination among experiment replications suggests that time of collection and length of storage may have influenced germination. Stratification treatment had a significant positive effect on seed germination and there was a significant interaction between PEG, but not NaCl, concentration and duration of cold stratification during germination. Further research is required to determine the importance of the degree of seed ripeness as well as the possible effect of after-ripening or induction of secondary dormancy of undispersed seeds on seed germination.

}, keywords = {cold stratification, dormancy, NaCl, polyethyleneglycol, seed germination, Triglochin maritima}, author = {Ne{\v c}ajeva, Jevgenija and Ievinsh, Gederts} } @article {196, title = {Phylogeographic evidence for the postglacial colonization of the North and Baltic Sea coasts from inland glacial refugia by Triglochin maritima L.}, journal = {Flora}, volume = {202}, year = {2007}, pages = {79-88}, abstract = {

We investigated the geographical distribution of genetic variation in 67 individuals of Triglochin maritima from 38 localities across Europe using AFLP markers. Analysis of genetic variation resulted in the recognition of two major genetic groups. Apart from few geographical outliers, these are distributed (1) along the Atlantic coasts of Portugal, Spain and France and (2) in the North Sea area, the Baltic Sea area, at central European inland localities, the northern Adriatic Sea coast and the Mediterranean coast of southwest France. Considering possible range shifts of T. maritima in reaction to Quaternary climatic changes as deduced from the present-day northern temperature limit of the species, Quaternary changes of coastline in the North Sea area and the very recent origin of the Baltic Sea, we conclude that the coastal populations of T. maritima in the North Sea and Baltic Sea areas originated from inland populations.

}, doi = {http://dx.doi.org/10.1016/j.flora.2006.05.001}, author = {Lambracht, Esther and Westberg, Erik and Kadereit, Joachim W.} }