ibclogo XVI International Botanical Congess


Abstract Number: 4017
Poster No. = 1270


POPULATION AND REPRODUCTIVE BIOLOGY OF SOME MOUNTAINS SPECIES IN THE WEST CARPATHIANS (SLOVAKIA)


T. Baranec , L. Durišová , P. Eliáš jun, Dept. of Botany, Slovak Agricultural University, Nitra, Slovakia


The high moutains species as assectators of the unique biotopes of the Slovakian mountains flora with expressive stenotopic features, belong to the most vulnerable representatives of the vegetation. Attention was oriented to the families Ericaceae, Empetraceae and Vacciniaceae as having endangered status in Slovakia. From July, gynoecea and immature fruits of species Arctous alpina, Arctostaphylos uva-ursi, V. gaultherioides and Empetrum hermaphroditum were collected from shrubs growing in natural reserve at the High Tatras and the Mala Fatra Mountains. Using methods of population biology some basic characteristics of local populations of these species were studied. Observation confirmed both types, the generative reproduction as facultative and vegetative propagation as dominant for all populations. Cytoembryological analyses of species clearly show the normal process of developing ovules after fertilization to mature seeds. The viability of seeds (in vitro condition) varied from 42 to 62%. A very low percentage of flowers developed mature fruits.


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