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Testování účinnosti vybraných povolených přípravků proti patogenním houbovým organismům dřevin v podmínkách in vitro
Ellingerová, Eva
This diploma thesis deals with testing the effectiveness of six selected approved preparations against pathogenic fungal organisms of woody plants in in vitro conditions. Specifically, they are Propizol (propiconazole), Phosphojet (potassium dihydrogen phosphate), Horizon 250 EW (tebuconazole), Ortiva (azoxystrobin), Topas 100 EC (penconazole) and Previcur Energy (fosetyl, propamocarb). Solutions of different concentrations (from 0.0001 % to 100 %) were prepared from these fungicidal substances, which were subsequently tested against the pathogenic fungal organisms Cylindrocarpon cylindroides and Sphaeropsis sapinea. The selected pathogens mainly attack conifers. In the case of Cylindrocarpon cylindroides, it is the genus Abies, and in the case of Sphaeropsis sapinea, the genus Pinus. All operations were carried out in the phytopathological and mycological laboratory at the Institute of Forest Protection and Hunting. Here, the tested pathogens were regularly checked and measured. After 13 weeks, the effectiveness of individual fungicidal preparations at given concentrations on 2 selected fungal pathogens was evaluated. The results show effective fungicidal preparations as well as preparations that, on the contrary, support the growth of the pathogen. The most effective fungicidal substance in both cases of pathogens was Horizon 250 EW (tebuconazole), which stopped the mycelium growth of both pathogens already at a 1 % concentration of the active substance.
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The oat growing in terms of selected agricultural company
ZIMMERMANNOVÁ, Zlata
The aim of the dissertation thesis was to find out the influence of fungicide and increased amount of nitrogen on the yield components of oat. The dissertation is divided into a literary overview and the thesis as such. In 2018 a pilot research was made on the land of a farm located in the district of Tábor. Atego oat was grown in four variants there: a control variant, a variant fertilized by nitrogen (without the usage of fungicide), a variant comprising fungicide application (without nitrogen fertilization) and a variant including both nitrogen fertilization and fungicide application. The highest theoretical yield was registered in the variant which contained fungicide as well as nitrogen. Regarding the yield components of oat, the highest number of plants and panicles was registered in the variant fertilized by nitrogen (without the usage of fungicide); the highest number of stolons and the maximum weight of one thousand grains was measured in the variant including both nitrogen fertilization and fungicide application. Finally, the highest number of grains in a panicle was obtained from a control variant.
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Evaluation of genotypic response of winter wheat production interventions
Bláha, Tomáš ; Faměra, Oldřich (advisor) ; Pavel, Pavel (referee)
Sources used in this thesis concerns the cultivation, the development and the growth of wheat and its recommendation for agro-ecological conditions such as requirements for the crop, influence of the agricultural technologies to underground parts, fertilization of wheat, the optimum sowing date and sowing depth. In the next part of literature search there is an information about response of winter wheat for chemical protection including treatment morforegulator of growth. The end of literature search deals with the composition of wheat grain and its potential influence to quality.
The methodological part is devoted to independent description of characteristics of the varieties which are included in experiment. Data for evaluation are based on literature published by ÚKZÚZ. This part summarizes the equipment used for conducting an experiment. Equipment consists machinery and laboratory equipment.
The experiment was located at two places - in Úhřetice near to Chrudim and in Krukanice near to Plzeň. Both places are valuated in the essay - description of altitude, soil type etc.
Evaluated results of experiments are at the end. The conclusion of my thesis is that more comfortable climate for growing wheat is in Úhřetice - the average yield is for almost 20 % higher than in Krukanice. Other conclusion is about late sowing date which reduces yield and about increasing number of antifungal treatment increases the yield. Each of the varieties are valuated in the next part and the best treatment options for them are recommended. One fungicide treatment is proposed resistance to disease (Bohemia, Seladon), dual fungicide treatment is recommended for the rest of varieties. Field evaluation of disease shows that intensity of the treatment must respond to the current situation (according to the year).
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