| dc.description.abstract | Due to the increasing human effect, more and more species are getting close to
extinction. The disappearance of a species can lead to the extinction of other ones and
degradation of the habitat as these biotopes are quite complex systems. Considering these
factors and the increasing extinction rate the protection of the species came to the focus in the
last few years. The knowledge of plant biology and reproduction seems to be essential for the
effective protection work, what helps to predict the succession pattern and the regeneration
ability. The regeneration of a plant community always base on the natural seed bank, and it
can be described with the seed viability and germination ability.
The aim of the research is the seed viability measurements of four species belong to
the Fabaceae family (Astragalus cicer, Astragalus contortuplicatus, Astraglus glycyphyllos,
Trifolium arvense). The main experiments were focused on the seed longevity and its
dependence on the seed weight. The decreasing of hardseedness was also tested. | en |
