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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Contribution to the plasticity of barnyardgrass (Echinochloa crus-galli (L.) PB) in the saltI contamined soil
 Šerá, Božena ; Gajdová, Iveta ; Nováková, Markéta
Barnyardgrass (Echinochloa crus - galli (L.) PB) is one of the major weeds, growing especially in the warmer parts of our country. This species was repeatedly found about different types of communications during a research of vegetation along roads and highways. Probably, the species has wide niche that allows it to exist even in adverse conditions, e.g. salt-contaminated area along roads. The aim of the study was to confirm that barnyardgrass can grow successfully in the salted substrate and how concentration of NaCl may inhibit its growth. Growing tests were carried out in a cultivate room on young plants which were grown in standard soil substrate with added sodium chloride (NaCl: 0.00 %, 0.12 %, 0.25%, 0.50%, 0.99 %, 1.96 %). The study found a successful growth of under- and aboveground biomass in substrates with lower concentrations of NaCl (to 0.50 %). In the substrate from concentration of 0.99 % a significant decrease of dry biomass and production of both under- and aboveground organs were found. Plant growth under different salinity stress is discussed in more detail in the text.
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The growth of large crabgrass (Digitaria sanguinalis (L.) SCOP). biomass in salt contaminate soil - a greenhouse experiment
 Nováková, Markéta ; Gajdová, Iveta ; Šerá, Božena
Large crabgrass (Digitaria sanguinalis (L.) SCOP.) is not registered on the list of Ellenbergs halophytic plant species. Despite it is a frequent species commonly growing along the roads on salt contaminated soils. The tests in the greenhouse were focused on finding the values of salinity in which Large crabgrass may produce biomass. Standard soil substrate contaminated by salt NaCl in the range from 0.12 % to 1.96 % was used. Tests have shown successful growth of underground and aboveground biomasses of tested plants in soil contaminated by lower concentrations of salt. Some plants despite the loss of biomass at higher concentrations were able to create generative organs with seeds. It was documented that Large crabgrass is a facultative halophyte.
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