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Effect of eutrophication on primary production of a herbaceous wetland
BORDOVSKÁ, Monika
This work is part of a study of wet meadows within the project GA CR 526/09/1545. The objective of the project is to determine the importance of newly assimilated carbon for the plat-soil interactions of plants with in wet grassland ecosystems in changing environmental conditions. As part of this project, a wet grassland ecosystem near Hamr situated in the Nežárka river floodplain was assessed in terms of aboveground production. This work includes data from 2010 and 2011. Each year the biomass was sampled two times. At each sampling, 24 samples were collected from plots differing in the intensity of fertilization. The treatments included high intensity of fertilization, low intensity of fertilization and no fertilization. In 2010, the annual production of aboveground biomass was 863.88 gm-2 on plots with a high intensity of fertilization, 788.46 gm-2 on plots with low intensity of fertilization and areas 839.69 gm-2 on unfertilized plots. In 2011 the annual production of aboveground biomass was 1149.71 gm-2 on plots with high fertilization, 953.73 gm-2 in plots with low fertilization, and 930.25 gm-2 on plots without fertilization.
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Cristates shapes grafting of selected cactuses species
BORDOVSKÁ, Monika
Fasciation is the deviation of plant growth, which penetrate the cristates. Their reproduction is easiest grafting. Between 2008 and 2009, always in late May, was based grafting experiments. The grafting was used in each year of the 5 kinds of rootstocks. On all rootstocks were grafted Christ in each year a different kind. In each year, so was the 100 grafted plant (total 200). Slips were used as cristate Cleistocactus sp. and Hildewintera aureispina as rootstocks and cacti Cereus jamacaru, Cereus peruvianus Echinopsis eyriesii, Echinopsis huascha, Eriocereus jusbertii, Trichocereus pasacana. The highest average success rate of grafting, the rootstock had Echinopsis hauscha (57.5%). The worst results are showing the type of rootstock Cereus jamacaru (5%). Overall, the successful grafting cristata Hildewintera aureispina 49%. The highest grafting success was achieved rootstocks Echinopsis eyriesii when it was grafted Christ Cleistocactus sp. (65%). The highest average success rate (of all types of cristates) had a rootstock Echinopsis hauscha (57.5%).
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