• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 90
  • 5
  • 2
  • Tagged with
  • 97
  • 35
  • 17
  • 15
  • 14
  • 14
  • 13
  • 13
  • 12
  • 11
  • 11
  • 10
  • 10
  • 10
  • 7
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Studium rezistence pícnin z čeledi Viciaceae k virovým patogenům

Pokorný, Radovan January 1999 (has links)
No description available.
42

Mikroorganismy v moření obilnin proti chorobám

Filkuka, Ivan January 1999 (has links)
No description available.
43

Rozšíření druhů Fusarium spp. a Microdochium spp., patogenních pro ozimé obilniny v České republice a jejich citlivost k fungicidním látkám

Kraus, Pavel January 2000 (has links)
No description available.
44

Porovnání kvantitativních a kvalitativních vlastností odrůdy Ryzlink rýnský v ekologické a integrované produkci

Juga, Petr January 2017 (has links)
This diploma thesis are focused on the comparison of integrated and organic production. The literary part deals with the problems of production systems in viticulture and explain their influence on the quality of grapes. It also describes plant extracts, used plants and their production. It describes the main fungal diseases that the vines invade. The experimental part describes the experiment itself, the plant protection products used and the methods used to evaluate the quantitative and qualitative parameters of Riesling grapes that have been observed during maturation. It deals with the evaluation and comparison of the monitored parameters. The thesis recommends an appropriate system of cultivation in organic and integrated production.
45

Vyhodnocení aplikace elicitorů na zdravotní stav révy vinné

Šmíd, Roman January 2017 (has links)
This Masters thesis contains possibility in using plant extracts as alternative options for protecting grapevine against fungal diseases. Also Impact using of water plant extracts to grapevine state of health and their quantity and qualitative parameters. Theoretic part of this masters thesis describe the most significant fungal diseases of grapevines. In following article are described manufacturing possibilities and usefulness of plant extracts. Plants convenient to produce extracts. The last paragraph in theoretical part contains characterization of defending reactions of grapevines, attacked by pathogens. Beginning of experimental part deals with influence of plant extracts to grapevine state of health. There is also comparison followed parameters between all tested variants.
46

Sloupcové tvary jabloní, jejich charakteristika a praktické možnosti využití

Tomanová, Ladislava January 2017 (has links)
Valorization of the growth, harvesting and qualitative characteristics of apple tree varieties which are characterized by columnar growth pattern at ŠZP Žabčice. Focusing on the incidence of fungal diseases (apple scab, apple powdery mildew). Review of literature focusing on the characteristics of growth properties, harvesting data including the quality of fruits and their keeping.
47

Hodnocení moštových PIWI odrůd pro výrobu červených vín

Halmová, Lenka January 2017 (has links)
This diploma thesis studies the evaluation of wine grape PIWI varieties for the production of red wines. The experiment took place in autumn 2016, specifically in September and October. Nine type of interspecific varieties, were studied and two control varieties were studied. All varieties come from the Mikulov wine-growing subregion from the Lednice village in Moravia. For all varieties, the basic analytical parameters of the qualitative characters were determined. Everything was statistically evaluated and compared. The literary part deals with problems of resistance, propagation, occurrence and description of the three most serious diseases that have just begun to breed these resistant varieties. For this research is a brief look and description of each variety separately, their origins, ampelographic features, suitable habitat and oenological properties.
48

Porovnání systémů ekologické ochrany u nových PIWI odrůd

Janků, Aneta January 2019 (has links)
This thesis focuses on the possibility of environmental protection of PIWI vine varieties against fungal diseases. The theoretical part of the thesis summarizes information about organic viticulture, vine resistance against fungal diseases, explains the importance of PIWI varieties and describes the most important fungal diseases of vine. In the experimental part, an experiment using ecological preparations against fungal diseases is described. The effectiveness of these formulations and the content of grapevine elements is evaluated here. Furthermore, qualitative parameters of grapes and aromatic substances in wine are analyzed and statistically processed.
49

Detekce napadení obilnin listovými chorobami pomocí termálního zobrazování, zobrazovací fluorescence a spektrální odrazivosti

Mezera, Jiří January 2018 (has links)
In the theoretical part of this thesis there is summarized the basic knowledge about the fungal leaf diseases of cereals, their harmfulness and technologies of precision agriculture. The practical part deals with the detection of cereal infestation with fungal leaf diseases using noninvasive optical methods. The research was conducted on winter wheat using methods based on spectral reflectance, infrared thermal imaging, chlorophyll fluorescence imaging, and blue-green fluorescence imaging. The tested diseases were powdery mildew (Blumeria graminis f. sp. tritici), wheat stripe rust (Puccinia striiformis), and wheat leaf rust (Puccinia recondita f.sp. tritici).). In the case of spectral reflectance, the best results were obtained for spectral indices ANMB650-725 and ZM generally. Overall, the best results for all methods were achieved in the detection of wheat leaf rust. A very good indicator of disease infestation was infrared thermal imaging, with a higher level of infection implying an increase in leaf temperature and a lower difference between leaf and air temperature. Reliability of detection by chlorophyll fluorescence imaging differs between individual diseases, with the best results being generally achieved for actual quantum yield PSII and the non-photochemical quenching. The most promising method for the future is the blue-green fluorescence imaging, which achieved very good results for both, the estimation of infection level and contrast between the infected and the healthy part of the leaf.
50

Znalosti žáků druhého stupně vybrané základní školy o zvolených infekčních chorobách / Knowledge of second-degree pupils of the selected elementary school on selected infectious diseases

Pavelková, Barbora January 2020 (has links)
This Diploma Thesis deals with the issue of knowledge of second grade pupils of a selected elementary school regarding selected infectious diseases. The aim of this diploma thesis is to find out to what extent pupils aged 11 - 15 are informed about infectious diseases, their transmission, treatment possibilities, protection against them and to what extent their school participates in such awareness procedures. The theoretical part includes the definition and approximation of basic terms concerning epidemiology, hygiene and microbiology. It provides basic information about infectious diseases, transmission methods, protection against them and their treatment. The practical part analyses and evaluates the data obtained by the questionnaire survey among second grade pupils of the selected elementary school. A total of 186 questionnaires were used to evaluate the results. Indeed, the results confirmed that the pupils' knowledge of infectious diseases is not sufficient for their own health and safety development. Many pupils have misinformation about vaccinations, incubation periods and protection against infectious diseases. I would therefore assume, we need to get closer to the pupils` problems of infectious diseases and to improve knowledge in these areas. Furthermore, it is necessary to strengthen...

Page generated in 0.0569 seconds