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The care of herbal layer in garden art monuments
Baroš, Adam ; Barošová, Ivana ; Bulíř, Pavel ; Dostálek, Jiří
Metodika komplexně zpracovává velkou část postupů při péči o bylinné patro zejména v objektech památek zahradního umění. Metodika také shrnuje problematiku památkové ochrany bylinného patra, ačkoliv pouze okrajově, přesto se tohoto tématu dotýká s ohledem na její celkové zaměření. Dále metodika obsahuje základní přehled použití bylin v historii v Evropě a na území v ČR, a to z důvodu doplnění a pochopení problematiky managementu bylinného patra v památkách zahradního umění. Výše uvedené pak doplňuje také ryze praktické srovnání finančních nároků na údržbu vybraných složek bylinné vegetace.
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Efficiency of inquiry based teaching methods in elementary schools
PEŠKOVÁ, Šárka
The main aim of this bachelor thesis is to find out the efficiency of research-based teaching in biology lessons at upper primary school. The next partial aim is the comparison of students' effectiveness during lessons with elements of exploration-based teaching (a.k.a. experimental group) and comparison of students during frontal teaching (a.k.a. inspecting group). The bachelor thesis deals with teaching methods which can be used during students' lessons at upper primary schools and concentrates on possibilities of research-based teaching. Three research-based tasks which focus on plants and their parts (root, stalk, leaf) are suggested in the thesis. The use of these suggested tasks was verified in author's own practical training in seventh grade at one of the primary schools. Individual tasks are formed and prepared in order to develop creativity, independence, sense of co-operating and exploring stated topics with others. These suggested themes can be used during biology lessons at upper primary schools. The results of efficiency of suggested research-based tasks are presented in the bachelor thesis.
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Comparison of emissions of biogenic volatile organic compounds from leaves of three tree species
Holišová, Petra ; Večeřová, Kristýna ; Pallozi, E. ; Guidolotti, G. ; Esposito, R. ; Calfapietra, Carlo ; Urban, Otmar
Biogenic volatile organic compounds (BVOCs) play many roles in plants’ ecophysiology and have the potential to affect atmospheric quality due to their chemical reactivity. Rates of BVOC emissions are highly variable depending on plant species and growing condition. Our study evaluated the amounts and spectra of BVOCs emitted from three tree species. We investigated BVOC emissions from the leaves of mature Norway spruce and sessile oak saplings grown in the field and from 1-year-old cuttings of hybrid poplar grown under laboratory conditions. Emitted BVOCs were sampled on desorption Tenax tubes in parallel with gas-exchange measurements. After subsequent thermal desorption of Tenax tubes, BVOC profiles were estimated by gas chromatography coupled with mass spectrometry. The tree species showed substantial differences in BVOC emission rates per unit leaf area ranging between 2.33 and 25.67 nmol m–2 s–1. Spruce trees had the lowest BVOC emissions and oak had slightly higher BVOC emissions on average than did poplar. Isoprene composed more than 97% of total BVOC emissions from oak and poplar, while no isoprene emissions from spruce needles were detected. Spruce BVOC emissions were mainly composed of such monoterpenes as α-pinene, β-pinene, and limonene.
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Supercritical Fractionation of Volatiles and Non-volatiles from Different Plant Sources
Topiař, Martin
The focus of this work was on using the SFE combined with different fractionation techniques (additional separator, sorption on silica gel in one step with the extraction) in a range of pressures and temperatures (9–30 MPa, 40–50 °C) to enhance volatiles in extracts from the leaves of eucalyptus. Its essential oil is widely used in cough pills or toothpastes and in addition, several studies proved insecticidal and repellent activity of eucalyptus extract.1,2 The efficiency of SFE in terms of extract composition and yield was compared with hydrodistillation. The composition of volatiles in the isolates was determined using GC-MS and GC-FID.
Fulltext: content.csg - PDF
Plný tet: SKMBT_C22015061709330 - PDF
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Suggestions of science field trips to selected locations around Horažďovicce with using in teaching natural history at the 2nd primary school
ZÁBRANSKÁ, Věra
The main aim of this thesis is the suggestion of excursions into certain places in the region of Horažďovice for pupils from 6th to 9th grade at elementary school. The thesis is divided into the theoretical part and the part focused on preparation of these excursions. The theoretical part is concerned with plan and tuitional methods which are useful for preparation änd realization of the excursions. The second part is dedicated to the description of natural environment of the region of Horažďovice and particular localities. They consist of protected areas and nature reserves - Prácheň, Pučanka and Svaté Pole. Excursions are focused on processing of knowledge gained during natural science lessons and these localities were chosen thanks their various kinds of animals and plants.
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Ecology and conservation of invertebrates at anthropogenic sites
TROPEK, Robert
This thesis deals with communities of arthropods (and partly also vascular plants) colonising diverse anthropogenic sites. It reveals a conservation potential of these sites and focus on ecological requirements of both whole communities and individual species generalising these findings for usage in restoration of these sites.
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