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The methodology of integrated Colorado potato beetle management in potatoes under new agro-environmental conditions
Doležal, P. ; Hausvater, E. ; Baštová, P. ; Kocourek, F. ; Stará, J. ; Sedlák, P. ; Sedláková, V. ; Skoková Habuštová, Oxana ; Nermuť, Jiří
The aim of the certified methodology is to provide updated principles of effective integrated Colorado potato beetle management for the agricultural practice resulting from new findings on biology and population genetics in the situation, when the range of effective insecticides has been reduced, pest resistance to insecticides has been increased and agro ecological conditions have been changed. Colorado potato beetle is a very serious insect pest of potatoes, highly mobile and able to quickly develop insecticide resistance. The methodology was drawn up based on the newest findings on the efficacy of existing insecticides registered against Colorado potato beetle, taking into account newly acquired knowledge in the field of pest resistance to active ingredients and a necessity of ever increasing multiple applications.
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Účinnost vybraných silic při ochraně bramboru vůči bakterii Pectobacterium atrosepticum
Mokrá, Kristýna
The aim of the thesis was to evaluate the effect of the active substances of essential oils (thyme, oregano, rosemary, natural thymol, synthetic thymol, carvacrol, menthon, cinnamon) against the Gram-negative bacterium Pectobacterium atrosepticum. The efficacy of essential oils was determined under laboratory conditions using the disk diffusion method, the values of minimum inhibitory concentration and minimum bactericidal concentration. Also, a pathogenicity test was performed on potato tubers with selected essential oils (thyme, thymol natural, and cinnamon). The components natural thymol, synthetic thymol, and the essential oil of cinnamon showed the best results, while menthone and carvacrol showed poor effects against the tested bacteria.
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Potato Harvesting in Vysočina - radio reportage
Procházka, Adam ; Lovaš, Karol (advisor) ; Lokšík, Martin (referee)
This bachelor's thesis uses a radio reportage to show the process of harvesting potatoes on Josef Vlk's farm in Čelistná near Pelhřimov. In the first, theoretical part, the topic of reportage as a radio genre is mentioned with the addition of its past and present. One chapter will also focus on the basic orientation of the potato harvest. The second half is devoted to the methodology of making radio reportage. It explains the preparation, recording procedure and subsequent post-production.
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Evaluation of supplementary plant preparation application effect on potato production parameters
MIČKA, Michal
The aim of the master's thesis was to evaluate the effects of the application of an auxiliary product on the production parameters of potatoes. For this purpose, a one-year small-plot experiment was established in 2022 at the experimental field in Lukavec. The varieties Ornella, Red Anna, Val Blue, and Westamyl were selected for the experiment. For this experiment, the auxiliary product Energen Fulhum Plus was applied. Energen Fulhum Plus is a modified aqueous solution of substance salts obtained by the original decomposition of technical lignosulfonate. It supports the formation of fine root hairs and, as a result, increases the use of moisture and nutrition. It also supports growth, yield, and material composition. After the harvest of the experimental plots, the yield was determined and then samples were taken for chemical analyses. From the experiment, the tuber yield, average tuber weight, starch content, starch yield, dry matter content, nitrogen content, nitrogen yield, and polyphenol content were evaluated. In the monitored year 2022, the temperature and precipitation during the period March - September were above average and it is evident from the results that all the varieties increased the tuber yield (t/ha), average tuber weight (g), starch content (%), starch yield (t/ha), nitrogen content (%) and nitrogen yield (t/ha) compared to the control after the application of the auxiliary product Energen Fulhum Plus. As for the dry matter content (%) after the application of the auxiliary product, the dry matter content increased in all varieties except the Val Blue variety, which showed a slight decrease in dry matter content. The application of the auxiliary preparation had different results for the total content of polyphenols (mg EGA/g dry matter), it increased in the varieties Westamyl and Val Blue and, on the contrary, decreased in the varieties Ornella and Red Anna.
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Applying new approaches in potato crop nutrition
RŮŽIČKA, Jan
The main objective of the bachelor thesis was to conduct a literature review in the field of fertilization and nutrition of the potato plant and to collect and sort information on new approaches used in potato cultivation. The thesis describes the methods of fertilization and nutrition with organic fertilizers, inorganic fertilizers (including essential elements) and their effect on potato growth and quality. Furthermore, the possibilities of using microbial and biochemical approaches to improve potato nutrition and their advantages or disadvantages are presented. The paper also presents opportunities to improve fertilizer use and minimize negative environmental impacts using new technologies and innovative practices. Finally, three practical examples from potato farms are presented.
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Porovnání automatického a poloautomatického sazeče brambor
NEBESAŘ, Jan
In the bachelor thesis two technologies for potato planting are compared. The first technology is planting with an automatic planter and the second technology is planting with a semi-automatic planter. The measurements were carried out in the Highlands region, which is located in a potato production area. The work focuses on the comparison of technologies in terms of quality of work, area performance and economic efficiency. The latter includes the consumption of post-fertiliser materials and the operating costs of individual planters. Furthermore, the thesis seeks the point at which both technologies achieve the same area efficiency at the same machine operating costs.
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Hodnotenie vplyvu odrody na kvalitu zemiakových lupienkov
Lovás, Patrik
The diploma thesis deals with the evaluation of potato variety impact on final chips sensory quality. Lab experiment was focused on three potato varieties used in INTERSNACK Choustník, a.s. production process, where dry matter, starch con-tent, reducing sugars and texture traits were evaluated. Lastly, chips´ sensory analysis made of given varieties was examined. Company secret did not let us re-veal the real names of potato varieties, so they are identified by Slovak alphabet letters: A, B, and C. The best sensory quality was measured in chips produced from B variety, characterised by suitable chemical parameters for chips processing. The other variates are suitable for chips processing as well, but the final chips´ sensory evaluation reported some irregularities, which could cause in C variety the higher content of reducing sugars, and in A variety agrotechnology issues.
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Evaluation of the yield and quality of table potato tubers
KAŇKA, Jakub
The aim of the diploma thesis was to evaluate the differences in yield, content of nutritionally important substances and table value of tubers in the selected set of ware potatoes. For this purpose, a small plot experiment was established in Jindřichův Hradec with 3 varieties of ware potatoes: Rosara, Sunshine and Princess. The cultivation took place under the conditions of conventional technology. During the vegetation, the health of the growth, the onset of growth phases and the yield formation were monitored. Samples were taken from the harvested plots for examination and chemical analysis and then the yield was determined. The number of tubers per bunch and stem, the average weight of tubers, dry matter content, starch content, total polyphenol content and antioxidant activity were evaluated for individual varieties. Furthermore, the table value of tubers was evaluated by evaluators through a cooking test.
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Response of potatoes to split application of nitrogen and plant auxiliaries
MICHALÍČEK, David
The aim of the diploma thesis wasto evaluate the yield of tubers and the share of starch in tubers in potato varieties with different growing seasons and to point out or refute the need for nitrogen during cultivation. Next, to focus on the effect of nitrogen fertilization on dry matter and starch content. It was a small plot experiment, which was based on the Valečov experimental station. Two varieties were selected for the experiment, the early and the semi-early ones. The first variant is a plant not fertilized with nitrogen. The other variant was fertilized before planting. In another variant, a split application of nitrogen was performed, and in the fourth variant, an auxiliary plant preparation was applied, supporting stolon growth and root formation. The experiment further records treatment and conditions during the growing season. Individual differences between the varieties were also recorded during the experiment. For variants 2 and 3, the effect of fertilization on the yield of potato tubers in both varieties was demonstrated. The yield also increased significantly in the variant with the use of an auxiliary preparation. The semi-early variety Antonia reacted best to the auxiliary herbal preparation and the early variety Colomba achieved the highest yield in the variant with foliar application of urea. Antonia recorded a yield of 58.4 t/ha for the control variant, 64.3 t/ha for the second variant and 66.9 t/ha for the third fertilizer before planting. The variant with an auxiliary product then recorded a yield of 68.53 t/ha, which was a higher yield compared to the control variant by 10.1 t/ha. For the very early Colomba variety, the yields for the variant without fertilization were 66.14 t/ha, variant No. 2 then 83.18 t/ha, the variant with fertilization before planting recorded a yield of 79.26 t/ha and the variant with auxiliary product 78.85 t/ha. The differences between the fertilized variants during the growing season were 4.23 t/ha for the Antonia variety in favor of the auxiliary plant preparation. For the Colomba variety, the difference was 4.33 t/ha in favor of the urea variant. At the same time, the size ratio of the tubers also changed. In the case of the Antonia variety, there was a decrease in starch content in the fertilized variants, but in the case of the Colomba variety, the decrease was not confirmed in all variants.
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Vývoj ploch vybraných zemědělských plodin v ČR
HLAVICA, Roman
This work deals with mapping the development of root crops in the Czech Republic. The purpose is to describe them, evaluate the development from 1920 to the present, the influences that led to changes in the development of root crops at a given time and mapping their development using ArcGIS. This work is divided into two stages. The first stage contains a literature search that describes the root crops in detail, the Geographic Information System (GIS). Methodology of data and data collection and description of their use. The second stage of this work contains a description of the effects on changes in the development of root crops over a period using the collected data and data, then their output in the form of a map created in GIS software.
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