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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.
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Showing 1 to 10 of 13 (0.027 seconds)Spelling suggestions: "subject:"carpinus"" "subject:"carapinus""
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Variation of shoot morphology and bifurcation ratio in ironwood (Ostrya virginiana)Kascht, Lawrence Joseph. January 1981 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1981. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 94-96).
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Produkční potenciál a kompetiční vztahy bukomodřínového porostu na živném stanovišti ŠLP KřtinyHurt, Václav January 2008 (has links)
No description available.
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Loranthus europaeus Jacq. verzus druhy r. Quercus L. resp. Carpinus L. =:Loranthus europaeus Jacq. vs. Quercus L. resp. Carpinus L. genera. /Kubíček, Jan January 2018 (has links)
A better understanding of host – hemiparasite association can lead to deepening and improving strategies, which would result in a long-term sustainability of their mutual balance or prosperity of urban and forest vegetation growth. The aim of the thesis is to describe and explore periodicity and dynamics of hemiparasite (Loranthus europaeus Jacq.) on various host woody species (Quercus petraea (Matt) Liebl., Carpinus betulus L., Prunus spinosa L.), options of the host support and means of a careful removal of parasite. However, to determine the progress of the infestation in time was the primary aim of the thesis. The research has been carried out in Brno – Kohoutovice and National Park Podyjí. The emergence of both hemiparasite´s and host´s phenophases were mutually compared in the critical conditions. The variation of the growth modules of mistletoe was compared in relation to the host species. The growth and fruit yield of the host and hemiparasite were analysed after the application of fertilizer based on the variations of the mineral content of leaves and soil. Between the years 2011-2015, 1599 stems were monitored for the degree of infestation by mistletoe. The results indicate that the vitality of the hemiparasite depends on the type of host. Fertilizer application improved the growth of the host. Arboricide application on the leaves of the hemiparasite was proven to be efficient. The abundance of hemiparasite increases with the increasing diameter at breast height (DBH), time and mutual interaction. The amount of hemiparasite slightly increases with the lower DBH. However, with the increasing DBH the mentioned phenomenon decreases. The trees with high DBH even show the decrease in the mistletoe infestation in time. Nevertheless, the decrease was accompanied by negative effect – gradual reduction of the crown and loss of the host tree branches. Hemiparasite is able to eradicate the whole stand. Hence, the necessity of paying attention to this issue since the young age of the individual trees. It is necessary to protect trees against stress aspects which can accelerate the negative effect of hemiparasite on the host.
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Topoklima údolí a jeho vliv na vegetaci / The Valley's Topoclimate and Its Influence on the VegetationKuželová, Hana January 2012 (has links)
The Valley's Topoclimate and Its Influence on The Vegetation Abstract The thesis as presented deals with specific valley's topoclimate of a chosen example of one particular valley located near the city Jílové u Prahy. The main objective of the thesis which has been defined is to evaluate the topoclimate of the determined area and its influence on the phytogeographical and phenological situation of the valley. The outdoor temperature measurements carried out by using Assmann's psychrometer as well as the observations of the plant's phenological state have been taken in the course of repeated expeditions into the valley in 2011 and 2012. The formations of night valley's inversions have been confirmed. The temperature gradient of 6 řC and three and half an hour long inversion following the sunrise have been recorded as a result of the measurement performed on 28th April 2012. As a consequence of the valley's parts shading the temperature differences have been proven. As a referential meteorological station the faculty's own station situated on the peak of Pecný hill and the automated personal weather station in Okrouhlo were used. The lower temperatures in the valley have a clear impact on the commencement of the plant's phenological stages. A detailed phenological scale was created in order to observe...
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Spatial variation of photosynthetic capacity of early-, mid-, or late-successional broad-leaved tree species in a temperate mixed forestLegner, Nicole 23 March 2012 (has links)
No description available.
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Fine root dynamics in broad-leaved deciduous forest stands differing in tree species diversity / Die Feinwurzeldynamik in unterschiedlich baumartenreichen LaubwäldernMeinen, Catharina 23 September 2008 (has links)
No description available.
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Pollenanalytische Untersuchungen zur holozänen Vegetationsgeschichte entlang des östlichen unteren Odertals und südlichen unteren Wartatals in Nordwestpolen / Pollen analytical studies on holocene vegetation history in the eastern lower Oder valley and the southern lower Warta valley in North-Western PolandHerking, Christa Maria 01 July 2004 (has links)
No description available.
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Hydraulic traits and their relevance for water use strategies in five broad-leaved tree species of a temperate mixed forestKöcher, Paul 21 November 2012 (has links)
No description available.
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Effects of tree species composition on fine root biomass and dynamics in the rhizosphere of deciduous tree stands in the Hainich National Park (Thuringia) / Effects of tree species composition on fine root biomass and dynamics in the rhizosphere of deciduous tree stands in the Hainich National Park (Thuringia)Jacob, Andreas 21 November 2012 (has links)
No description available.
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Soil moisture, fire, and tree community structureWhite, William Patrick 07 April 2011 (has links)
No description available.
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