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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Qualitative pollen analysis of honey from bees kept in Czech Republic
 VALEŠKOVÁ, Denisa
Pollen analysis is the determination of a pollen grains in a honey sediment. The main goal of the thesis was to qualitatively assess a honey from the bees breed in different parts of the Czech republic and to evaluate, if there are any differences in bee grazing between a bees breed in the city and a bees breed in the countryside. Investigate, if a pollen is associated with the colony diseases and higher susceptibility to the pesticides from the field crop. It was found that the dominant plant taxon were canola and fruit trees. In the urban centers was high concentration of the pollen grains from a woody plants, which bees probably visit in local parks. Rural areas were miscellaneous species with high concentration of the herbaceous plants that are part of the meadows.
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Attractive planting of species of potentially expanding bee pastures for bees
 ŠEBESTA, Tomáš
This diploma thesis entitled "Attractiveness of Planting Species with a Potential to Extend Bee Forage for Bees" discusses pollen and nectar plants planted in the Brník municipality in the Central Bohemian Region. The thesis consists of two parts. The theoretical part describes honeybees, bee plants and their pollen- and nectar production ability as well as bee forage from early spring until late autumn so as to reflect the needs of pollinators as best as possible. The practical part uses pollen analysis to microscopically analyse the representation of pollen grains of plants in the honey produced by local bee colonies. Pollen analyses of honey from own bee colonies are compared with that from bee colonies belonging to neighbouring beekeepers.
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Effect of grazing diversity on bee colony health status
 ŠEBESTA, Tomáš
The Bachelor thesis aims at establishing the impact that diversity of bee forage has on the state of health of the bee colony. Honeybees are important for the life on this planet. The first part of the thesis presents a description of honeybees and of what is natural for, and indispensable to, their life. It presents plants that offer high- or low-quality pollen and nectar in our climate conditions during the year according to the phenological calendar, and also discusses changes in our landscape in the course of history. The second part focuses on substances that may help bees to fight against diseases and pests.
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