The diplom thesis deals with comparation od the wines aged in different types of barrique barrels. In the theoretical part there are described types and origin of the wood, processing of the wood and chemical compounds, which are brought into the wine during aeging. Practical part deals with comparation of the data from spectrophotometry and chromatography analysis.

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The main objectives of the thesis submitted were to create the missing oak tree-ring chronology for the area of Slovakia, update the existing Czech oak tree-ring chronology, assess their paleoclimatic potential, and find the best way to remove the age trend from tree-ring series. At the same time, the number of sapwood tree rings over time was analysed. As the historical and archaeological material can be represented in tree-ring chronologies by curves from different oak species with different age and from different areas, two comparative studies have been carried out to assess their usefulness for the climate reconstruction. Tree-ring chronologies of four selected oak species (Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus polycarpa Schur., Quercus dalechampii Ten.) from the same region showed a very similar response to climatic parameters; the differences were caused by local site conditions rather than oak species. Further, the recent part of the Czech oak chronology was divided into five couples of sub-chronologies using various categories (altitude, age of trees, tree species, soil moisture, and geographic location). A great similarity of all the sub-chronologies was confirmed by the most significant growth response of oak to the precipitation sum in the period May to July. The thousands-year-long Czech oak chronology, which has been gradually improved in recent years, still showed insufficient coverage of the entire territory of the oak natural distribution range and insufficient replication in the 19th century. A total of 342 newly collected samples from western Bohemia and samples from selected historical structures, mostly belfries, were used to cover the entire natural distribution range in the Czech Republic and to improve the connection of the recent and the historical parts of the chronology. The study was supplemented by the analysis of the number of sapwood tree rings, which confirmed the declining number of sapwood rings in the direction from the west to the east, and showed that the number of sapwood rings does not change over time (5-24). A completely new tree-ring oak chronology for the territory of the Slovak Republic was made up of 276 historical and 1028 recent samples. The chronology ranges from 967 to 2013 and shows strong resemblance with the tree-ring chronologies from the Czech Republic, Austria and Ukraine. As the Czech chronology, it manifests the most significant response to precipitation in the May to July period with a huge drop in correlations around 1980. The analysis of negative pointer years in the chronology revealed 26 periods; the most extreme year was 1947, which stood out in all of the investigated sites. Comparing the resulting chronologies, no significant differences were found among the various ways of age trend removal from tree-ring series in the periods with sufficient replication. This work extends the knowledge about the behaviour of the oak in Central Europe at the level of tree rings. The newly formed tree-ring oak chronology for the area of Slovakia fills the gap in the dense network of European chronologies and together with the update of the Czech oak chronology increases the potential for hydroclimatic reconstructions and the reliability of the dating of historical oak structures and archaeological finds.

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Large areas of steppe vegetation on the southern slope of the hill Hady were before the start of limestone mining one of the most valuable botanical area around Brno. Protected area Kavky as a remnant of this rare natural phenomena today grows over with shrubs and rapidly expanding - protected species Downy oak Quercus pubescens. Therefore, the goal of the work was to investigate the ability of reproduction Downy oak and based on the analysis of a given territory propose locality that would be most suitable for its spread. Subsequently, there was suggested method of implementationby performing experimental planting and other observations. The work confirmed that despite the fact that Downy oaks does not produce every year so abundant amount of seeds, are able to sufficiently spread naturally. This, however, only if it does not prevent them from doing any biotic or abiotic impact. Best locations for spreading oak seems shelf quarry or other quarries. It is necessary to help Dawny oak to get into the quarry. The recommended way of spreading taxon for such an extreme habitat type as a former limestone quarry, is sowing seeds into the hole, cover with soil and mulch. In the way of planting is appropriate to use a one-year seedlings.

This thesis deals with competition effect on sprouts growth of sessile oak (Quercus petraea agg.). It analyze dimensions and growth of sprouts in 5 growing seasons. It investigates competition effect to height increment and diameter increment of sprouts on areas in corversion to coppice and coppice with standarts. Measurement was realized in the area of ŠLP Křtiny, specifically on research area Hády. It was found, that with increasing age decrease the number of sprouts gradually. It was demonstrated, that sprouts are growing better, and achieves a higher dimensions in area without standarts. Competition effect was certified to height increment and diameter increment at the entire growth period.

The main content of the thesis comparing selected stands at LZ Židlochovice. Forests were compared with a predominance of English oak (Quercus robur), black walnut (Juglans nigra) and poplar stands (Populus spp.). It was not pursued only production functions, but the thesis deals with evaluation of non-production functions of forests and their social importance for the population. The results indicate that the selected forests at LZ Židlochovice have high bioproduction and sanitary-hygienic function. Conversely ecological functions - stabilization is low. In economic terms can return from the forests very high, assuming grow quality range

This thesis investigates the coppice-making ability of sessile oak (Quercus petraea agg.) as a part of project TARMAG II in the area of ŠLP Masaryk Forest Křtiny near the village Soběšice. It describes the relationship between diameter of stump, bark thickness, thickness of tree rings and volume exhibitions left in the area with sprout quantity. Than examine interrelationships among volume retained exhibitions, influence of tree rings and bark with biomass increment sprouts. The research area consists of sixteen sub - areas, where each of them was examined 8 stumps. Based on field measurements in winter 2013 and 2014, measured data, which were subsequently analyzed by statistical methods in the program R ( R DevelopmentCore Team , 2010). It was found, that diameter of stump do significant effect on sprouting capacity. The coppice-making ability of oak decreases with diameter of stump. It was demonstrated dependence among volume retained exhibitions and weight and increase in biomass.