National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Bryophytes can recognize their neighbours through volatile organic compounds
VICHEROVÁ, Eliška
This thesis examines interspecific interactions in bryophytes and brings first evidence of bryophyte plant-plant interaction through volatile organic compounds.
Plant interactions in environments with fluctuating nutrient levels
Gawliková, Karolina ; Weiser, Martin (advisor) ; Hanzelková, Věra (referee)
Plants are affected by heterogeneity of nutrients in their environment but also by the plant competition for nutrients. In this study I review limits of contemporary studies and suggest possible alternatives. Currently, there is no experimental way to separate the effect of neighbour and the effect of fluctuating nutrients. For better understanding of plant interactions in environments with fluctuating nutrient levels, it is crucial to have thorough understanding of the heterogeneity itself, of the reactions of plants on said heterogeneity and also of the plant competition for nutrients. Then it is important to incorporate all this information into planning of the experimental design and simultaneously have them in mind when interpreting the acquired results.
Produkce alelopatických látek u vybraných bylin a jejich biologická účinnost
Nováková, Eliška
The thesis is focused on the study of allelopathy and allelopathic effects of Ambrosia artemisiifolia and Festuca rubra on selected species of herbs. The first theoretical part describes plants relationships and available information about allelopathy. The second part deals with the influence of Ambrosia artemisiifolia on the growth of Plantago lanceolata, Lotus corniculatus, Arrhenatherum elatius, Festuca rubra, Phacelia tanacetifolia and Pisum sativum in outdoor conditions in different cultivation substrates. The effect of extracts from roots of Festuca rubra and synthetic m-tyrosine on the germination of seeds Ambrosia artemisiifolia was evaluated. The obtained results confirmed the effect of Ambrosia artemisiifolia on the growth of the studied plants and the effect of the tested solutions on germination seeds of Ambrosia.

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