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Phenotypic variability in native populations of Lythrum salicaria L. across geographical gradient: between- and within-population differences
Bastlová, D. ; Květ, Jan
Variability in growth characteristics was studied in 15 native Eurasian populations of L. salicaria across the N.-S. geographical gradient in a garden tub experiment. Plant height, total plant mass and its components (dry weight of shoots, roots, lateral branches, leaves and inflorescence) and the basal stem diameter, number of lateral branches and internodes were assessed at the end of 1st season. Most of the total variability in plant height, shoot dry weight, that of lateral branches, leaves and inflorescences, basal stem diameter, leaf area, specific leaf area, flowering time and number of primary lateral branches can be explained by differences in latitude of the location of the populations' origin. But the variability in root dry weight, number of roots and number of internodes is higher between and within the populations than between the geographical locations.
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