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Species traits determining species composition on abandoned fields
Jarošíková, Cecílie ; Münzbergová, Zuzana (advisor) ; Klimešová, Jitka (referee)
Though succession is a widely studied process, there are only a few reports dealing with changes in plant functional types in the course of succession. Even fewer studies are dealing with agricultural, wet meadows, which are under continuous impact of mowing. The aim of this work is to fill this gap. The studied area is situated in south part of CHKO Slavkovský Les (region of Karlovy Vary, West Bohemia). In previous works grasslands on arable field after 15, 35 and 55 years after abandoned and continual grasslands in last 100 years were detected from historical agriculture maps. The releves on all types of grassland were made and the species pool was investigated. I this work I investigate the functional types and live-history traits of these species and I also look for Ellenberger values and changes of abiotic environment. The result suggests that the late - successional species are long-lived and have slower live cycle (they mature later). Their seeds are less persistent and have worse dispersal ability. Their seedlings are more viable and the species invest more to aboveground biomass than to underground. Late-successional species also flower earlier and shorter time, what seems to be an adaptation to mowing. I found no relationship between successional age in which the species occur and seed mass,...
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Mykorhizní preparáty a jejich možné využití při množení okrasných dřevin
Hasalíková, Markéta
This diploma thesis deals with the influence of mycorrhizal preparations in the reproduction of ornamental trees and their recommendations for the production in growing nurseries. Two species of shrubs were chosen for the experimental part, Deutzia gracilis 'Nikko' and Weigela florida 'Piccolo'. The shrubs were propagated by herbal cuttings. The experiment took place in 2018 on the site of the Faculty of Horticulture in Lednice. After laboratory evaluation, the root colonization by arbuscular fungi has been demonstrated. The degree of colonization has not reached high levels, but we have seen their gradual increase. From the results it is noticeable that the preparations used did not influence the development of adventitious roots and the vitality of cuttings so it is not possible to label it as effective and recommending for the production in growing nurseries. It should be noted that the duration of this experiment was only one year.
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Zakořeňování řízků dřevin v paperpotech a sadbovačích
Ambrožová, Klára
This thesis was written up at the Department of Breeding and Propagation of Horticultural Plants under Faculty of Horticulture Mendel University in Lednice. The thesis deals with rooting of woody species of chosen kinds of Ornamental wood. The experiment was performed for Berberis thunbergii ´Rose Glow´ and for Syringa meyeri ´Palibin´ in two terms (16.6.2016 and 1.8.2016) and in four variants. The fourth variant was for control only.
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Využití mykorhizy při vegetativním množení dřevin bylinnými řízky
Ján, Jakub
The topic of the diploma thesis was the study of the influence of commercial mycorrhizal preparation on the rooting of softwood cuttings of two selected species of ornamental shrubs (Forsythia × intermedia 'Maluch' and Weigela florida 'Piccolo'). The main objective was to find out whether the mycorrhizal preparation can make the process of vegetative propagation more efficient and favourably influence the formation of roots. The used preparation contained arbuscular mycorrhizal fungi of the genus Glomus, two different amounts of the preparation were used. The experiment was carried out in the summer months of the year 2016. The experiment was founded in a plastic greenhouse on the ground of the Faculty of Horticulture in Lednice in Moravia (the Czech Republic), two main terms of propagation passed (in June and August) and one supplementary term passed (in August). The total number of adventitious roots, the number of branched roots, the length of shoots and the mortality of cuttings were evaluated. Mycorrhizal colonization of roots was evaluated in the laboratory under the microscope. The results of the experiment did not show that the used mycorrhizal preparation can positively affect the rooting of softwood cuttings, the application of the mycorrhizal inoculum did not improve the efficiency of vegetative propagation and did not provide convincing advantages. Mycorrhizal fungi did not stimulate the growth of cuttings, and in fact they did not influence the number of adventitious roots neither in Forsythia × intermedia 'Maluch', nor in Weigela florida 'Piccolo'. The only significant positive was that the Weigela florida 'Piccolo' had a higher number of branched roots after inoculation. The observation of roots under the microscope showed that the roots of both species were colonized by arbuscular mycorrhizal fungi, but the extent of colonization did not reach high levels. Mycorrhizal inoculation of propagation substrate cannot be recommended as an effective method that would improve rooting. However, it should be added that the experiment only passed for one year and the results were based only on one term of propagation. Thus the influence of mycorrhizal fungi on the rooting of plant cuttings should be the subject of further research.
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Species traits determining species composition on abandoned fields
Jarošíková, Cecílie ; Münzbergová, Zuzana (advisor) ; Klimešová, Jitka (referee)
Though succession is a widely studied process, there are only a few reports dealing with changes in plant functional types in the course of succession. Even fewer studies are dealing with agricultural, wet meadows, which are under continuous impact of mowing. The aim of this work is to fill this gap. The studied area is situated in south part of CHKO Slavkovský Les (region of Karlovy Vary, West Bohemia). In previous works grasslands on arable field after 15, 35 and 55 years after abandoned and continual grasslands in last 100 years were detected from historical agriculture maps. The releves on all types of grassland were made and the species pool was investigated. I this work I investigate the functional types and live-history traits of these species and I also look for Ellenberger values and changes of abiotic environment. The result suggests that the late - successional species are long-lived and have slower live cycle (they mature later). Their seeds are less persistent and have worse dispersal ability. Their seedlings are more viable and the species invest more to aboveground biomass than to underground. Late-successional species also flower earlier and shorter time, what seems to be an adaptation to mowing. I found no relationship between successional age in which the species occur and seed mass,...
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