National Repository of Grey Literature 59 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
Vliv stanoviště na odrůstání prostokořenného a krytokořenného sadebního materiálu
Fojtík, Roman
The work was made in order to find out what influence it has on the growth of bare-rooted and cover-rooted material in habitats with a different set of forest types. The habitats were selected on forest type sets 3B, 3S, 4B, 5K and 5S. One research area was established at these sites, where the trees were researched for research: Norway spruce (Picea abies (L.) Karsten), European beech (Fagus sylvatica L.) and Douglas fir (Pseudotsuga menziesii (Mirb.) Franco). For this purpose, 200 individuals of bare-root varieties and 200 individuals of rooted varieties for each tree species were planted. When the growing season ended, data collection began in the field. Data collection was performed on 100 individuals from each variant. For the following comparison, the following parameters and features were ascertained: height of the aerial part, terminal flange, length of branch growth, root neck thickness, crown width, length of the assimilation apparatus, width of the assimilation apparatus, deflection of the stem axis, height of multiple stem deployment, color of the assimilation apparatus, ripple trunk, multiple trunk, crown shape, multiple peak, loss. Furthermore, the data were statistically evaluated and compared. This means that it could have an effect on the outgrowth of barefoot Douglas. This also applies to the rooted beech, except SLT 3S. The habitats with SLT 3B, 3S and 4B were better suited for the growth of bark-spruce, and on the site with SLT 5K and 5S there was a better influence on the growth of spruce.
Vliv stanoviště na odrůstání kultur založených prostokořenným a krytokořenným sadebním materiálem
Brach, Vlastimil
The purpose of this diploma thesis was to compare and evaluate the growth of potted and bare-root seedlings planted in locations SLT 5K, 2K, 2S and 1K, where trial areas were established. In 2014 200 potted and 200 bare-root seedlings of European spruce, European beech and Douglas fir were planted in these areas and only Scots pine was planted and evaluated in location SLT 1K. 10 parameters and 5 traits were measured and evaluated in all the areas and on all the planted plants at the end of the growing period of 2017. A statistical evaluation was subsequently performed according to individual location and seedling version. The results clearly indicate that the highest mortality was in areas located at SLT 1K and we can say that potted Scots pine grew best in this area. Potted European beech grew best in location 5K. Potted European spruce grew best in location 2K. The potted versions of the planted seedlings were not found to have grown better at location 2S according to the overall evaluation and no difference was found in the European beech or the Douglas fir in growth between the measured alternatives.
Srovnání vitality krytokořenného a prostokořenného sadebního materiálu v měnících se klimatických podmínkách prostředí
Charvát, Zdeněk
The aim of the thesis was to compare the vitality of the containerized and bare-root planting stock in the changing climatic conditions of the environment. For this purpose, four research plots were set up at forest habitat types 6S, 6K, 7S, and 7K. On each of the research plots, the following tree species were planted evenly: Norway spruce (Picea abies (L.) Karst.), European beech (Fagus sylvatica L.) and Douglas fir (Pseudotsuga menziesii (Mirb.) Franco); each of the above-mentioned trees was planted in two variants – containerized and bare-root, 200 seedlings per each variety. Subsequently, after the end of the vegetation period, measurements were made on 100 individuals from each variant. The following parameters and features were compared during the measurements: height of the above-ground part, length of the terminal growth, length of the lateral growth, diameter of the root collar, straightness of the stem, deviation of the stem from the vertical axis, crown width, crown shape, length, width and colour of the assimilation apparatus, presence of the multiplicity of the stem, kind of damage. Results of the study show that the bare-root planting stock has a higher vitality than the containerized one at all the studied forest habitat types. The smallest differences were found in Norway spruce variants and the largest differences were found in Douglas fir variants.
Růst a prosperita výsadeb douglasky tisolisté na Opočensku
Matějka, Ondřej
The aim of this diploma thesis is to assess the growth potential of Douglas fir (Pseudotsuga menziesii / Mirbel / Franco) compared to other agricultural tree species of the Czech Republic. Data collection took place on the plots located in the forests of Kristina Colloredo-Mansfeld's property in Opočensko. There were 2 areas where douglas were grown in various mixtures with pine, spruce, oak and beech. By evaluating the results for 5 years of observation, it was found that Douglas already has a demonstrably faster growth rate in the early stage of growth, and in some cases has 2.5 times higher production potential than most of our agricultural tree species. The benefit of this work is to demonstrate the potential production capacities of douglas and their positive benefits to our forestry, including resilience and ability to adapt to current climate change.
Vliv provenience na růst semenáčků douglasky tisolisté
Juračka, Michal
The aim of the study was to evaluate the effect of different provenance on the growth of Douglas fir on uncovered mineral soil. There were tested 14 provenances from Canada and 2 from Czech Republic. There were monitoring bare-root seedlings in forest nursery Cetkovice. There were evaluated 100 seedlings from each provenance. In this study is also comparison with one-year and two-year seedlings which were measured in 2011 and 2012. In this study are mentioned basic characteristics about forest nursery Cetkovice where was cultivated of planting stock. The provenance SHAWATUM C var. menziesii was assessed to be the best of three-year seedlings, on the other hand the worst was the provenance HOSPITAL CR var. glauca.
Hodnocení produkce a vitality sadebního materiálu lesních dřevin za použití hnojiv a přípravků s fytostimulačním účinkem v lesní školce Hejtmánkovice - Pasa
Térová, Radka
Final thesis on Assessment of production and vitality of forest woody species planting material with use of fertilizers and phytostimulatory agents in forest nursery Hejtmánkovice Pasa is a model study conducted in forest nursery. Topic of study was assessment of effect of phytostimulant WormsAktiv Stimul and slowly dissolving mineral nutrient Silvamix R30S with stimulants. In this context the biometric characteristics of douglas fir were assessed along with physical, physico-chemical and chemical characteristics of soil. Resulting estimation of biometric parameters of asessed plantlets after application of both preparates showed significant increase in root hair count of plantlets DG 2 minus 1. Results of this research report the effectivity of applied natural phytostimulants.
Comparison of bark boring species composition on douglas-fir and spruce
Trepáč, Matěj ; Pešková, Vítězslava (advisor) ; Šenfeld, Petr (referee)
The aim of this bachelor's work was observation and follow-up evaluation of tree trap of Douglas fir, Pseudotsuga menziesii ((Mirbel) Franco, 1950), and Norway spruce, Picea abies ((Linnaeus.) H. Karsten, 1753). This work was focused on the attractiveness of Douglas fir in comparison with Norway spruce, primarily on bark beetles. Two years in sequence 6 pairs of tree trap above mentioned species were evaluated each year at locality Zelená Bouda. Evaluation were made during period of spring attack, before adult bugs were ready for swarming. Four sections were evaluated at each tree trap. The basic method was quantitative comparison based on results that we obtained during this research. Obtained results were recorded into transparent tables and graphs according to individual year with year-on-year comparison. Written evaluation was following behind. Results can be used as a basis for desicion making if Douglas fir is appropriate for growing in ours conditions in larger scale. So far we can presume from obtained results that Douglas fir is less attractive then Norway spruce.
Annual progress of radial increment of selected species in Arboretum FFWS in Kostelec nad Černými lesy
Chržová, Anna ; Bažant, Václav (advisor) ; Vítámvás, Jan (referee)
Abstract This thesis deals with the evaluation of the annual radial increment measured during the vegetation period 2014 and 2015 on three species of trees in the Arboretum of The Faculty of Forestry and Wood Sciences of the Czech University of Life Sciences Prague in Kostelec. Evaluation of the seasonal dynamics of radial increment of Abies grandis (Grand fir), Picea sitchensis (Sitka spruce) and Pseudotsuga menziesii (Douglas fir) on plot stands in the Arboretum in Kostelec was made by comparing the climate in the time period and the annual radial increment as it changed during the season. Annual radial increment of Abies grandis, Picea sitchensis and Pseudotsuga menziesii was detected by device EMS DRL26A. This device also subscribed information about the temperature during the growing season. Data was processed by software EMS Mini32 and exported to Microsoft Excel 2016. Information about the temperature, I determinated with using a meteorological station in the area of the Arboretum. Data fromdendrometer and weather station and their interdependence was evaluated using Microsoft Excel 2016 in the form of line charts. In 2014, I was dealing also phenological phases and the time of onset and end of it on observed species. Due to the extremely warm and dry year 2015, I had the opportunity to compare the responses of individual species at these climatic phenomens. In conclusion, the results are confronted with the literature searches and the discussion in this thesis, where I focused on the characteristics of measured trees and their application in European conditions
Potential use of Douglas fir for the enrcihment of tree species composition in forest stands of forest district Klokočná, Forests of the Czech Republic, State Enterprise
Ludík, Josef ; Bílek, Lukáš (advisor) ; Otakar, Otakar (referee)
This bachelor thesis evaluates the potential use of Douglas fir (Pseudotsuga menziesii /Mirb./ Franco) to enrich the woody species composition at Klokocna forest area, Konopiste forests, state-owned Forests Czech Republic, s. p. The introductory part of the review of literature deals with the morphology, the main distribution area, introductions, ecology, production and also cultivation of Douglas fir. The aim of this study was to obtain data for assessing the potential interspersed Douglas fir individuals for natural regeneration, to determine the degree of damage to wildlife and its effect on cultivation quality. Data were measured for evaluation and recorded on square plots. These areas were selected on the basis of the position of mother trees whose dendrometric characteristics were measured. In total, nine plots have been identified with an area of 3600 m2. Based on the measured data the amount of Douglas fir young growth was determined. It was also done measurement of dendrometric and growing characteristics at this regeneration of Douglas fir. On the basis of these findings silvicultural measures have been recommended.
Selected Physical Wood Properties of Douglas Fir from Sites in the Czech Republic
Chvojka, Jan ; Zeidler, Aleš (advisor) ; Podrázský, Vilém (referee)
This diploma thesis was created to evaluate of selected physical properties, density and shrinkage of Douglas-fir (Pseudotsuga menziesii / Mirbel / FRANCO) wood, coming from areas of Lesy města Písku, s.r.o. and the territory of School Forest Enterprise in Kostelec nad Černými lesy of Czech University of Life Sciences. The work tested density and shrinkage, their subsequent comparison with native species and the relevant data from the regions of original distribution of these species. It was also assessed if these physical properties are affected by location of growth or if they vary between individual trees and what is the effect of horizontal or vertical position in a stem on the tested values. It was shown that the density reaches higher values than our native trees. It was found that location of growth or individual trees have influence on the tested properties. The value of density is decreasing with growing height of the tree and increasing with growing distance from the center of the tree. Shrinkage in tangential direction was lower in comparison with Scotch pine, but higher in radial direction. Volumetric shrinkage reached lower values than Scotch pine.

National Repository of Grey Literature : 59 records found   previous11 - 20nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.