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Effect of water deficit on the energy content of individual plant organs in selected species of leafy vegetables
Šimůnková, Petra ; Hnilička, František (advisor) ; Česká, Jana (referee)
This work presents the impact of water deficit on dry mass production and photosynthetic accumulation of energy on every single plant´s organs of selected plant species. As a chosen experimental material were taken plants of Spinacea oleracea "Matador" sort and Tetragonia tetragonioides.
Spinacea oleracea and Tetragonia tetragonioides plants were grown in containers 11x11cm large in mixture of garden substrate A with silicon sand (2:1) in 2 variations placed in FAPPZ greenhouses. One variation was for control and second was exposed to stress reaction. Control variation had been watered for whole time of experiment with 50ml of water 2 times per week. Stressed one had been watered after puncturing and 6. taking until the end of experiment.
During the plant´s ontogenetic evolution had been monitored dry mass´s weight on singular plant´s organs. With usage of burnt calorimetry method had been monitored capacity of photosynteticaly accumulated energy in dry mass. Quantity of netto energy had been found out by dry burning adiabatic calorimeter LAGEST MS 10A.
From the gained results emerge, that plants of Tetragonia tetragonioides have 2 times higher weight growth apart from Spinacea oleracea. Control plants of Tetragonia tetragonioides have higher weight by 25,5% (123 mg) compared to the plants growing in water deficit. Likewise higher weight of roots had been observed on control plants (41 mg) compared to the stressed plants (40 g). Control spinach plants had higher weight of above-ground biomass by 19,5% compared to the stressed ones (43 mg). Roots of control plants had lower weight compared to stressed variant by 2960 mg.
From the results emerge, that plants of Tetragonia tetragonioides have higher weight of roots dry mass and above-ground biomass compared to the Spinacea oleracea plants.
Burning heat without ashes was on above-ground biomass of control plants Tetragonia tetragonioide on 15,96 kJ.g-1 level and on stressed plants 14,93 kJ.g-1 . In case of Spinacea oleracea plants was amount of control plants energy 14,98 kJ.g-1 and on stressed 14,21 kJ.g-1.
Burnt heat without root ashes of Tetragonia tetragonioides control plants was higher by 1.11 kJ.g-1 then on stressed ones (13,19 kJ.g-1). In case of Spinacea oleracea plants was amount of roots energy on control plants 11,90 kJ.g-1 and on stressed 11,72 kJ.g-1 .
Based on measurement were verified differences between species in reaction on water deficit and observed characteristic. From measuring emerged, that Spinacea oleracea plants are more sensitive on effect of water deficit compared to the Tetragonia tetragonioides
plants, which is more tolerant. Next thing observed is, that there are differences in amount of dry mass and rate of burnt heat in relation on effect of water deficit.
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The influence of time in feed enrichment with unsaturated fatty acids to selected parameters of pig carcass value with regard to the fatty acid composition of intramuscular fat
Pantoflíček, Jiří ; Čítek, Jaroslav (advisor) ; Miloslav, Miloslav (referee)
The thesis aims to evaluate the impact of aliment with higher contents of unsaturated fatty acids, consumed for a different period of time, to utilitarian attributes of pigs before a slaughter, with respect to the composition of fatty acids in the intramuscular fat of tested animals.
The factors that influence the quality of meat are interior, exterior and technological. Among the qualitative markers of quality of meat we rank the share of meat and fat, acidification rate, color, viscosity, contents of intramuscular fat (marbling), smell, taste, juiciness and delicacy. Together with hygienic and nutritive attributes, consumers and processors consider these technological and sensory aspects to be the most important.
The ultimate goal of this thesis is to compare the impact of different length of feeding soy oil on parameters of pork meat quality and growth.
However, the interference of growth attributes was inconclusive and the test result came similar in different groups of tested pigs.
What was influenced by adding the soy oil into the feed is the fatty acids profile. The contents of fatty acids remained unchanged in every test group. Over time the content of monounsaturated fatty acids decreased. The most significant change occurred in representation of polyunsaturated fatty acids, which increased in the test groups with longer period of feeding with enriched feed, mostly at the expense of monounsaturated fatty acids.
The differences between the test groups of pigs were statistically inconclusive; therefore the soy oil enrichment did not worsen the technological parameters of meat and fat quality.
The longer period of feeding the soy oil enriched feed led to significant increase in polyunsaturated fatty acids. According to the findings, adding the soy oil into the feed will have no effect at all if done short time before the slaughter.
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Use of Festuca arundinacea for decorative lawns
Doskočil, Jan ; Svobodová, Miluše (advisor) ; Hrevušová, Zuzana (referee)
Use of Festuca arundinacea for decorative lawns
Summary
Festuca arundinacea is briefly bentgrass with broader and coarser leaves. Hardly perennial grass, native to Europe, is well known for its high resistance of dry weather, low intensity of maintenance and resistance of high use. These qualities gains thanks to its well-developed and deep root system, which is capable to gain water and nutrients from deeper parts of soil. Its use is in places with high use, like a race-course, edges of roads or vineyards alleyway. Today, in time of global warming, its usage becomes more important for park purposes and low-input turfs, where is its higher resistance against biotic and abiotic stresses, mainly against drought, utilized. Festuca arundinacea complement well with Poa pratensis in turf.
Goal of this work was to evaluate turfs with Festuca arundinacea and chosen grass species under different mowing frequency. According to hypothesis frequency shouldn´t affect turf coverage. Coverage should be same with different mixture composition with Festuca arundinacea.
The experiment was performed on experimental land of Czech university of Life Sciences Prague, Suchdol in 2015. Mixtures of Festuca arundinacea with Festuca rubra, Poa pratensis and Lolium perenne were seeded together with monocultures of these species in 2012. Mixture composition was 50/50 except mixture of Fesruca arundinacea and Poa pratensis, where the mixture was 75/25. There were conducted 63 plots, in 3 repetitions and in 3 different frequencies of mowing (by 14, 30 and 45 days). Each plot was 6 m2 big. The results were evaluated by analysis of variance ANOVA (P is smaller than 0.05) in program Statgraphics, version XV.
Influence of mixture composition to level of growth was significant. The highest level of growth has monoculture of Festuca arundinacea (10,6 cm). The lowest level of growth has monoculture of Lolium perenne (5,4 cm). Monoculture of Festuca arundinacea had the highest intensity of grow (0,07 cm/day) at 14-day frequency of moving. Lolium perenne has the lowest intensity of grow (0,02 cm/day). At 30-day frequency of mowing mixture of Festuca arundinacea with Poa pratensis has the highest intensity of grow (0,24 cm/day). The lowest intensity of grow has Lolium perenne (0,01 cm/day). The highest intensity of grow was at 45-day mowing frequency. The highest intensity of grow has mixture of Festuca arundinacea with Festuca rubra (0,75 cm/day). The lowest intensity of grow has monoculture of Lolium perenne (0,06 cm/day). Influence of mixture composition to coverage was statistically significant. The highest coverage has mixture of Festuca arundinace with Festuca rubra (81,3 %). The lowest coverage has monoculture of Lolium perenne (58,6%). Influence of frequency to level of growth was statistically significant. The highest level of growth has 45-day frequency of mowing (6 cm) and the lowest level of growth has 14-day frequency of mowing (3,8 cm). Influence of frequency to coverage was statistically significant. The highest coverage 14-day frequency of moving (76,5 %) and the lowest has 45-day frequency of growing (66,7 %).
The knowledge gained will be used for further compilation grass mixtures for park lawns. It turned out that it is better to prefer seeding mixtures with Festuca arundinacea than monocultures. To achieve high coverage and optimal intensity of growth with Festuca arundinacea was recommended to follow 30-day frequency of mowing.
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Labor relations academics
Mikšovská, Zdenka ; Světlíková, Daniela (advisor) ; Klára, Klára (referee)
Thesis on labor relations academics in its introductory chapters provide a comprehensive overview of the historical development of labor law, legal norms and the development of higher education in the Czech Republic. Further explanation was provided about the sources of law, they have been characterized in detail the different legal standards. The purpose of the above analysis was to create a comprehensive overview a system of labor law. In the fourth chapter, were analyzed in detail types of labor relations to the next chapter was at a particular college, the University of Jan Evangelista in Ústí nad Labem, pointed out how the above-mentioned issue addressed in practice.
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Performance recording in Charolais beef herd
Jelínek, Petr ; Toušová, Renata (advisor) ; Petr, Petr (referee)
Summary
In this thesis I dealt with verification of performance of beef cattle Charolais Breed on farm: Chov Charolais spol. s r. o. Slabce. The main objective of my diploma work was to assess the growth abilities of calves Charolais breed from birth till weaning in relation to various factors, for instance: gender, order of calving, number of born calves during one calving, month and year of the birth on the respective farm. The relevant data was assessed for the period of years 2012 - 2015. In this period there was born 324 calves of which 162 bulls, 153 heifers and 9 still born calves. The assessment of calf's growth characteristics was related to the average birthweight, average gain from birth to 120 days, and average weight at the age of 120 and 210 days. For the evaluation of calf's growth characteristics was used data gained from the database of performance testing of beef cattle (KUMP) for the given period. Growth parameters related to selected factors were processed with the use of statistical software SAS 9.3 (SAS 9.3, 2011).
The average weight of young bulls at birth was 33,58 kg and average weight of heifers was 32,99 kg. The average weight of bulls at the age of 120 days was 183,66 kg and the average weight of heifers was 175,58 kg which was demonstrated to be statistically significant (P < 0,01). The average weight of bulls at the age of 210 days was 288,28 kg which is again higher than heifers with average weight of 264,21 kg (P < 0,05). To summarize, there was identified statistically significant difference of the gender influence in behalf of bulls.
After comparison of average weight at birth, at the age of 120 and 210 days separately for twins and an only child, there is obvious and also statistically significant finding (P < 0,01) that the observed twins are usually smaller at birth and their growth abilities are worse than that of only child. The average weight at birth for an only child is about 4,48 kg higher compared to twins. Then the average weight at the age of 120 days for an only child is about 38,68 kg higher than average weight of twings. Finally the average weight at the age of 210 days is about 58,26 kg higher for an only child.
Regarding to the influence of order of calving there was identified no significant effect to both average birth weight and weight at the age of 210 days. The only statistical significance was identified between order of calving and the average weight at the age of 120 days in 1st, 2nd, 5th, 7th, 10th order of calving (P < 0,05). Further I found out that calves in the 1st order of calving have significantly lower average weight from the 1st calving mothers at the age of 120 days than the calves in the 2nd, 5th, 7th, 10th order of calving. The average weight of calves at the age of 120 days is about 9,29 kg lower than weight of calves in the 2nd order of calving. On the other hand the average weight of calves at the age of 120 days in the 5th order of calving is about 18,37 kg higher than weight of calves in the 1st order of calving. Similarly, calves in the 7th order of calving have about 13,63 kg higher weight than calves from the 1st calving mothers. And also calves at the age of 120 days in the 10th order of calving have about 15,78 kg higher weight than calves from the 1st calving mothers.
In respect of influence of year of birth was identified statistically significant different level (P < 0,01) of the average birthweight in year 2013 compared to other years. Similarly there was demonstrated the statistically significant difference (P < 0,01) regarding to the average gain from birth in year 2013 compared to other years. The average birthweight in 2013 was 34,91 kg. The lowest average birthweight of 31,65 kg was observed in 2015. And for instance in 2012 the average birthweight was 32,48 kg which is still about 2,43 kg lower than in 2013. Regarding the evaluation of the average gain from birth till the age of 120 days there was only reported value of 1046,78 g in 2013. The best year regarding the average gain from birth till the age of 120 days was year 2014 which represented value of 1214,37 g.
In the observed breed there took place births predominantly from January till June. Regarding the month of birth there was demonstrated statistically significant difference (P < 0,05) in respect of average birthweight of calves born in May 31,98 kg compared calves born in February 32,55 kg and in March 33,07 kg. Further was identified statistically significant difference regarding the average gain from birth for calves born in June 995,28 g compared to calves born in February 1197,87 g (P < 0,01). Similarly in March was reported value of 1181,18 g (P < 0,05). The last statistically significant difference (P < 0,01) was identified in respect of average weight at the age of 210 days of calves born in May 199,55 kg and in June 201 kg in comparison to calves born in January 282,05 kg, in February 284,65 kg, in March 277,21 kg and in April 277,76 kg. To conclude, based on the statistical analysis, conclusive results and literary sources there had been confirmed hypothesis that internal factors positively affect the growth abilities of calves.
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A systém of field and forest roads in the administrativ area Suchovršice
Jansa, Petr ; Zilvar, Josef (advisor) ; Petr, Petr (referee)
This thesis deals with the network of field and forest in the cadastre unit of Suchovršice and suggest to supplement the network of unpaved roads.
In the theoretical part is summarized the history of the field and forest roads. Then there is a division of field and forest roads according to the relevant standards ČSN. Another section is devoted to maintenance events, repairs and reconstructions of field and forest roads. There are outlined the possibility of financing the construction of new roads. Follow a description of the most important objects on the field and forest paths.
In the practical part is defined area of interest including the broader territorial relations. Then there are described the current field and forest roads in the area of interest, which were plotted to the map of road networks. This map is the result of performed detailed field research. On the basis of digitized map stable cadastre is described the road network in 1840. Due to the fact could be compared to road networks in two different time stages. The existing system of field and forest roads is evaluated. For ratings are calculated densities of both types of roads in the area of interest. The calculated density of the field and forest roads are assessed with an average density of roads in the Czech Republic. The density of field and forest roads in the selected area is higher than the national average. This can be explained by the type of relief which corresponds hilly land type. Overall, the number and length of roads is sufficient. However, density of forest haul routes is insufficinet. Problematic is also the technical condition of rural roads in the selected area.
Based on the analysis of historical and current road network is designed to complement the rural roads within the land adjustment. Land adjustment just underway, and draft routes can be used to compile Plan of common facilities.
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Growing of rapeseed for energy purposes - impacts and context.
Charvát, Michal ; Kuchtová, Perla (advisor) ; Josef, Josef (referee)
Biofuels are generally based on biomass. It may be a waste biomass or biomass grown specifically. It is used as fixed or lump fuel, and also to as liquid and gas. Liquid biofuels are used both for energy purposes, ie to produce heat, electricity generation, but also as a motor fuels. In this thesis goes on biofuel purposefully grown, about oilseed rape and from it made liquid fuel, in this case of RME rapeseed methyl ester, which is a fuel of the first generation.
The European Union expected that the use of biofuel will reduce CO2 emissions by up to 35% further premised that the development of biofuels will be a positive impact on local employment and it the both on direct and indirect. Further help diversify Europe's dependence on oil imports. They were introduced direct support for growers in order to exlarged the area where grew plants intended for biofuel. These direct resistances were abolished in 2010. Similar support was also intended for producers.
Regarding rapeseed, peak in the sown area across the EU was in 2010, when it was sown almost 7 mil. ha, which is almost 3,5 times more than the original plan for the EU. Last year, it was only 6,45 mil. ha, but with higher-yielding rapeseed seeds. Similarly, increasing the sowing areas you can watch in the Czech Republic. Moreover Czech Republic is the fifth producer of rapeseed in the EU. In 2013/14 have been sown most ha rape, total 418,8 th. ha, but production was the highest in the following year due hectare yields, although with reduced the area sown. Yet is rape sown on 14% of cultivated land.
We can not talk about drastically restricting cultivation of rape, even after termination direct aid. First, the price of rape is very decent and steady and almost half designated for industrial processing it is processed on RME. However, the system of cultivation is not good for the soil. Rape in plans crop rotation is ranked every two years mostly, but the best would be once for five years.
The only assumption was confirmed by the EU, CO2 emissions are lower, but is also needed to count with the amount of N2O emissions, which this benefit is reduced. However on employment it had no effect, or rather negative. More jobs in agriculture provides livestock production and the like can be evaluated also process industry. Another problem is the destruction of ecosystems so that could be grown plants suitable for biofuels. It is a matter of developing countries, in our lands is it about the depletion of fertile land to cultivation fuel instead of food. First, it needed more to fertilize and use pesticides. But also in case of crop failure it is revenue designetid for biofuels producers is delivere even at the cost of food price increases.
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Small-scale biogas technology in Southeast Asian countries: current state, bottlenecks and perspectives
Roubík, Hynek ; Banout, Jan (advisor)
Biogas produced via the anaerobic digestion (AD) of organic waste materials is considered as an important technology in improving the environment because it solves waste management problems and simultaneously produces biogas as a main product and digestate as a by-product, which can also be used as a fertilizer.
Within the rising expectations for the substitution of fossil energy with renewable energy as one of the solutions to cope with climate change, the environmental aspects of small-scale biogas plants, as widely used method for energy creation, should be evaluated in a holistic and systematic way. The use of small-scale biogas plants is mostly common for energy creation from waste in Southeast Asia.
This source of energy is mainly lauded for its low costs, clean production and high fertilization effects of digested matter for crops. There are number of advantages of small-scale biogas production on farms, including also savings on firewood or fossil fuels and reduction in odour and greenhouse gas emissions from using other fuels. However, biogas plants are often poorly managed and there is lack of proper distribution systems for biogas. That results in methane being release inadvertently through leaks in digesters and tubing, and intentionally when production exceeds demand. As methane has a global warming potential 25 times higher than that of carbon dioxide, environmental advantages of small-scale biogas plants might be compromised.
This dissertation intends to provide in-depth understanding about the issue with taking into accounts possible risks. Investigating of such a topic is within continuing concern about small-scale biogas technology in rural areas of developing countries. For this reason technical, social, economic and environmental assessment of small-scale biogas technology will be done. Methods of data collection will consist of questionnaire survey and focus group discussions among randomly selected owners of biogas plants, semi-structured personal interviews with local authorities and facilitators and observation. Furthermore, prediction of future development of this technology will be created.
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Performance of private MFIs and financial cooperatives
Neradová, Alena ; Van Damme, Patrick (advisor)
Developing countries have a long-term deal with a financial and economic instability in the current economic environment. Besides others, one of discussed solutions on that scheme is dedicated to microfinance where are evident efforts at delivering inclusive socio-economic development. Thus, the dissertation is focused on the analysis of the relative performance of private MFIs and financial cooperatives in Mediterranean region on selected socio-economic indicators, such as women's employment, education or level of material well-being. The impact of the offered products, such as credit and savings in the attempt to express what types of institutions are providing higher added value to clientele and in what intensity they change selected socio-economic indicator is also significant. Primary data of selected institutions will be inspected on the background of global data structured in the major regions of the world trying to understand the logics, risks and potentials of the development of the microfinance and cooperative sector and their intersections. The output will be a recommendation for the support of the microfinance and cooperative sector.
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Evaluation of growth and fertility in chosen columnar apple-tree varieties
Brázdová, Ludmila ; Zíka, Lukáš (advisor) ; Súkeníková, Tereza (referee)
This paper deals with the evaluation of growth and fertility in selected apple varieties. I will discuss the range of columnar apple trees, which represent a further step in the development of growing shapes. Eleven different varieties grafted onto two different rootstocks was assessed. Planting was establish in the spring of 2013, the clamp 3 x 0,8 m. The trees were planted as a two-year vaccinees.
The aim of the study was to evaluate and compare the increase in trunk diameter, the intensity of growth and yield of selected columnar apple varieties, before and after the end of their vegetation. It was necessary to evaluate the cross-sectional area strain in (cm2), increase in cross-sectional area strain in (cm2), average fruit weight (g), crown height (m), absolute yield (kg) per tree, specific yield on (cm2) cross-sectional area, yield (kg) on increase in area strain, area yield (t / ha) and specific yield on the crown height (kg / m).
In the theoretical part I will deal with the history of apple growing and growing development of various shapes, characteristics of apple trees, their significance and composition. Further I will discuss demands on the growing the apple tree and its treating. At the same time I will mention the major diseases and pests. At the end of this part I will describe harvesting methods and proper storage.
The practical part is focused on the experiment itself and its subsequent evaluation. I will mention the location and characteristics of the habitat where the apple tree grew. I will describe specific columnar varieties and rootstocks used. I will characterize the specific location of the varieties grown and the activities that were implemented during the evaluation period of the experiment.
In conclusion, the results have been evaluated, to which I arrived during the entire measurements. This part contains the observed values displayed in two tables. For a better overview of the data obtained and the results they are displayed graphically. At the end there is a complete summary of the whole work.
For the most of the results it has been proved that a base affects the intensity of growth and yield. The biggest growth area strain (cm2) had a variety 'Cumulus' on rootstock M 26, but on the rootstock M 9 the increase was significantly lower. When assessing absolute yield the highest values were observed in a variety 'Red Spring' on rootstock M 26, followed by the yield of variety 'Slendera' on rootstock M 26. The lowest yield was observed in cultivar 'Cumulus' on M 9. In these cases, we can confirm the influence of rootstock of variety. When evaluating the specific yield on increase strain the highest yield was at varieties 'Red Spring' on M 26, followed by a variety 'Slendera', where the yield was greater on the rootstock M 9. Here it is impossible to unequivocally confirm that the rootstock M 26 has a higher yield than the rootstock M 9.
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