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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
The impact of management methods on the \kur{D. sambucina} populations' size and it's occurrence in the Vsetin region.
 HAJDUCHOVÁ, Kristýna
The occurrence of the orchid species Dactylorhiza sambucina was verified at 86 localities in the region of Vsetínské vrchy and Javorníky mountains. The suitability of the management methods for grassland ecosystems with the occurrence of D. sambucina was studied from the point of view of the composition of the vegetation and a comparison of the historical management with current practices. In addition, the sizes of the populations of D. sambucina at the localities with different management regimes were compared and the reaction of the populations to the changes in management practices was discussed.
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The effect of abiotic and biotic factors on corolla colour polymorphism in \kur{Dactylorhiza sambucina} (Orchidaceae)
 KREMLOVÁ, Markéta
The European rewardless orchid Dactylorhiza sambucina commonly produces yellow- and purple-flowered individuals in frequencies that in different populations range from balanced to very unbalanced ones (we can find even monochromatic populations). I studied an effect of abiotic factors (soil pH, hydrolimits, slope and altitude of the locality), biotic factors (weight and viability of the seeds obtained from crossing between and within morphs) and the size of the populations on corolla colour of two morphs in European populations (the Czech Republic, Italy, Austria, Germany, France).
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