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Seeds germination at selected weed species
VAŇKOVÁ, Jana
Bachelor thesis is focused on basic informations and familiarization with problems of weeds and their general properties. Purpose of thesis is to determine the germination of selected weed species: Common dandelion (Taraxacum officinale L.) Thlaspi arvense (Thlaspi arvense L.), Coltsfoot Medical (Tussilago farfara L.), Bedstraw (Galium aparine L.), Broad leaved dock (Rumex obtusifolius L.). The result is to compare the effect of different temperature and light conditions for seed germination.
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Germination seeds by different temperature conditions
MACHOVÁ, Miroslava
This thesis deals with the biology, occurrence, harmfulness and control selected weed. The thesis aims to process the selected weeds in stands of cultivated crops overview of the biology, extension and suggest regulatory measures for especially dangerous weeds on arable land as for example Redroot pigweed (Amaranthus retroflexus L.), Cleavers (Galium aparine L.), Field pennycress (Thlaspi arvense L.), Shepherd's purse (Capsella bursa-pastoris L.) and Gallant soldier (Galinsoga parviflora Cav.).For selected species was determined germination seeds by different temperature conditions and by different seed depth.
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Biology and control of catchweed
VONDRUŠKA, Jakub
A very limited range of crops provides the human nutrition. In some time there was selected a little amount of weedy species that plays an important role with respect to quantum and danger. Galium aparine belongs to these species. Therefore an herbicide experiment was carried out with Triticum aestivum catering for a chemical regulation of this weed. In particular 26 varieties of a half of a hectare there was used 21 herbicide preparations and their combinations altogether in demanding conditions of low preparation of soil. It was realised at a land with a large amount of Galium aparine. Most of the preparations had a very good effect regarding the actual control. At some of them Galium aparine nevertheless outgrew and produced seeds. Although these seeds were produced in a little amount, they supply the reserve in a soil. In the literary recherche are described biology, harmfulness and potential methods of regulation of Galium aparine.
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