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Comparison between yellow-flowering hybrid WOSR varieties and white-flowering OP variety Witt in Flower Power System crop management in Agro Rubín a.s.
Vysoký, Josef ; Baranyk, Petr (advisor) ; Jaromír, Jaromír (referee)
Goal of this thesis is to compare yellow flowering hybrid WOSR varieties growth in conventional agriculture to white flowering OP variety growth in Flower Power System (FPS). We also have to confirm/deny that OP variety Witt is at least the same profitable as hybrid varieties (HV), due to the ecological and economical advantages of the FPS.
The effect of FPS is in growing Witt variety sown around by earlier yellow flowering variety buffer strip. The yellow flowering strip should be wide as minimum as plant protection sprayer, in this case it was 24 m. The buffer strip was sown by OP variety Cortes.
Primary tillage plowing was done immediately after the forecrop of winter barley harvest and after application of organic manure - pig manure on crushed straw. Sowing all studied varieties was conducted in the period 11th to 21st August 2014.
Autumn crop emergence and development carried out evenly, no significant pest damage was observed, due to the warm weather was needed triple application of morphoregulator. To winter crops entered with a sufficient number of true leaves, strong root neck and joined rosette of leaves.
Spring crop development launched very soon, thanks to a mild winter hibernating varieties by 91-96% plants. Applications of DASA took place in early March, the first application of DAM 390 in the second half of March. Flowering took place in an average of month, March 29 - May 30, 2015. Application of insecticides was carried out on all varieties 1x in the bud stage, the second one in bloom against gall midges (Dasineura brassicae) was dropped due to a weak incidence, so did not show the expected effect of FPS.
Harvest was initiated due to the very hot and dry weather on the 21st of July 2015. The overall average yield was 4.64 t8%/ha. Witt yield was 4.64 t8%/ha and buffer strip variety Cortes 4,62 t8%/ha and the HV 4.67 t8%/ha (4.19 to 5.01 t8%/ha). Plant protection products profitability for a variety Witt reached 87.10%, the average HV 87.49% (86.10% to 88.46%).
The numbers show us that the OP variety Witt does not reach at least the same profitability as the HV, but when compared with some specific HV is significantly overcome, which is at OP variety interesting. When comparing the content of fat acids, Witt contains almost the same proportions of fat acids as Cortes. That gives no reason to reach higher prices when selling Witt seeds, so you cannot count on this advantage as stated by the dealer. But in conjunction with lower environmental burden on bees and other non-target organisms, the variety Witt seems to be a very interesting choice.
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Vliv malolaktické fermentace na aromatický profil červeného vína
Veselý, Radek
This master's thesis is specifically concerned with the influence of malolactic fermentation on the aromatic profile of red wine. The literary (theoretical) part defines the malolactic fermentation and describes the volatile substances formed during malolactic fermentation. The practical part results from an experiment of various kinds of malolactic fermentation, where there are used two different strains of lactic acid bacteria. The experiment was carried out on three different varieties of wines which were sensorically and analytically evaluated.
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Arc optical diagnostics
Čermák, Jiří ; Valenta, Jiří (referee) ; Dohnal, Petr (advisor)
The aim of this bachelor thesis is to sort out the individual types of electric discharges, explain the ionization inside the plazma of the electric arc and the elucidation of the energetic balance inside the plazma. The electric arc is an undesirable and hardly predictable phenomenon occurring in switching devices during switching on and switching off the electric circuit. Some older methods of image processing obtained by a high-speed camera are also mentioned. Based on the images obtained from the camera, it is possible to make an equidensity or an equidensitogram that is used to monitor the arc in a quenching chamber. The second part includes the description of an experiment performed in a laboratory and the description of the high-speed camera used during this experiment. A modern method of the image processing using software Matlab is also described. An equidensitogram showing different levels of radioation was made in Matlab from the obtained images.
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Multi-filament yarns testing for textile-reinforced concrete
Kaděrová, Jana ; Seitl,, Stanislav (referee) ; Vořechovský, Miroslav (advisor)
The scope of the presented master thesis was the experimental study of multi-filament yarns made of AR-glass and used for textile-reinforced concrete. The behavior under the tensile loading was investigated by laboratory tests. A high number of yarn specimens (over 300) of six different lengths (from 1 cm to 74 cm) was tested to obtain statistically significant data which were subsequently corrected and statistically processed. The numerical model of the multi-filament bundle was studied and applied for prediction of the yarn performance and for later results interpretation. The model of n parallel filaments describes the behavior of a bundle with varying parameters representing different sources of disorder of the response and provides the qualitative information about the influence of their randomization on the overall bundle response. The aim of the carried experiment was to validate the model presumptions and to identify the model parameters to fit the real load-displacement curves. Unfortunately, due to unsuccessful correction of measured displacements devalued by additional non-linear contribution of the unstiff experiment device the load-displacement diagrams were not applicable to model parameters identification. The statistical evaluation was carried only for the maximal load values and the effect of the specimen size (length) on its strength was demonstrated. The size effect curve did not exclude the existence of spatial correlation of material mechanical properties modifying the classical statistical Weibull theory.
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Environmental Experiments at Nursery School
ANDĚLOVÁ, Romana
A bachelor thesis Environmental experiments in kindergarten discusses the issues of experiment tried in kindergarten. It processes information about the use of this method in kindergarten, about its use in the point of terms view, the methodological procedure, suitability for preschool age, material equipment and security, all in the form of literary research. A part of the work is a list of selected experiments suitable for preschoolers and worksheets created for each specific test.
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Evaluate the influence of Bio-algeen on selected indicators in the artificial breeding of the Common Pheasant.
SAVULA, Petr
The aim of the work was to evaluate the influence of Bio-algeen on selected indicators in the artificial breeding of the Common Pheasant. These selected indicators were mortality and weight gain of the Pheasants. The research has been conducted in the pheasantry Černiš by České Budějovice on selected flocks of the Common Pheasant. The products that have been used in the experiment were Biopolym FZT and Biopolym Granulate. Biopolym FZT was injected into water in feeding pumps and Biopolym Granulate was added to feeding mixtures. Both products have been added to food every day. It has been found out by the experiment itself that both used products have an effect on the weight gain of the Common Pheasant, but they have no impact on mortality.
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Innovated set for demonstrative experiments from electronics
VAŠÍČEK, Petr
The first part of this thesis is focused on the advantages of using the experiments during the physics education and their educational values. Furthermore, some types of experiments, their correct metodology of implementation and some other aspects which should be given an appropriate attention by the teacher are theoretically described. Then, some types of demonstrational sets and their brief history are described. The attention is aimed at the demonstrational set of DIDAKTIK, its content and composition. One chapter is devoted to the research of schools equipment for using the demonstrational experiments of electricity and magnetism and their evaluations. The last part deals with some experiments which can be made within this set, their documentation and evaluation. Further, there were worksheets created for some of these experiments. Two of these sheets were used among primary schools for didactic exploring and the reasults were evaluated.
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