Darstellung aller Stationen und Messwerte der BLUME-, RUBIS- und Passivsammler-Messnetze seit 1975 sowie ausgewählter langjährig betriebener Berliner Klimastationen
Das Projekt "Eifel Plume" wird vom Umweltbundesamt gefördert und von Geologisches Landesamt Nordrhein-Westfalen durchgeführt. Erkundung der Erdkruste und des oberen Erdmantels in der Eifel durch Fernbebentomographie und lokale Tomographie. Fragestellung: Gibt es unter der Eifel einen Magmaaufstieg aus dem Erdmantel, der moeglicherweise die Hebung der Eifel und den Vulkanismus erzeugt.
Das Projekt "Biological Control of Striga hermonthica in Sudan" wird vom Umweltbundesamt gefördert und von Universität Hohenheim, Institut für Tropische Agrarwissenschaften (Hans-Ruthenberg-Institut) (490), Fachgebiet Agrarökologie der Tropen und Substropen (490f) durchgeführt. Striga hermonthica is a parasitic flowering plant belonging to the family Scrophulariaceae. It is a root parasite that can attack sorghum, maize, millet and several grass weeds in the semi arid Tropics. In Sudan Striga is considered as the main constraint in sorghum production, the main staple food for the majority of Sudanese people. Several means of control are used to control Striga either chemically or physically, however these means are either inefficient or very costly. The biological control is an additional recent tool for the control of parasitic weeds. Several fusarium species were isolated from Striga in Sudan and they were found to be highly efficient in controlling Striga. The main objectives of this study are to (i) test the efficacy of formulated fusarium spp. in controlling Striga under field conditions; (ii) determine the optimum dose of the mycoherbicide to be used; and (iii) identify toxins produced by these bioagents for environmental safety.
Das Projekt "Potential der Arzneipflanze Passiflora incarnata L. als Bodendeckerpflanze in Obstplantagen Nord-Thailands" wird vom Umweltbundesamt gefördert und von Universität Hohenheim, Fakultät III Agrarwissenschaften I, Institut für Pflanzenproduktion und Agrarökologie in den Tropen und Subtropen, Fachgebiet Biodiversität und Landrehabilitation in den Tropen und Subtropen durchgeführt. Erosion of the often uncovered soil is a major problem for the establishment of smallholder fruit tree plantations in North Thailand. The use of multi-purpose cover plants can not only conserve useful soil resources but also create further income for peasants. Dried plant material from the passion flower (Passiflora incarnata L.) is used for herbal tea and extracts to be used as sedativa. The species is widespread in the Southern USA. The drug is often produced based on wild collections and exported to Europe. In exploratory trials in Thailand passion flower showed a good drought resistance due to its deep rooting system, and a good resistance against weeds and diseases. The yield potential and the amounts of ingredients appear to be promising with regard for the adoption by farmers. The flavonoids in the passion flower are mostly flavone-C-glycosides and are used for characterisation of the drug. Quantitative studies of imported drug material showed large differences in quantities and types of the flavone-C-glycosides. The causes for these differences are still not understood. Not much is known about the effect of cultivation techniques, fertilizer, growth stage on the content of flavonoids. The objective of this project is to study the potential of the passion flower as a soil cover plant in smallholder fruit tree plantations in North Thailand. Factors to be monitored are the effects of fertilizer and growth stage at harvest on plant yield and components.
Das Projekt "Branching Morphology in Forest Trees with Special Reference to Flowering and Fruiting" wird vom Umweltbundesamt gefördert und von Eidgenössische Technische Hochschule Zürich, Professur für Forstschutz und Dendrologie durchgeführt. The architecture of tree crowns is studied aiming at an improved understanding of the 'crown transparency' phenomenon. Since crown transparence is still used as the most important parameter for health assessment of trees, a good knowledge of crown morphology is an important prerequisite for the interpretation of such data. The project deals with the mode of branching of ecologically and economically important forest tree species.In particular, interest is focused on the loss of potential shoots due to flowering and/orpresence of lichens.
Das Projekt "Zuechtung von Apfel- und Zwetschgensorten" wird vom Umweltbundesamt gefördert und von Agroscope FAW Wädenswil, Eidgenössische Forschungsanstalt für Obst-, Wein- und Gartenbau durchgeführt. Apfel: Qualitativ hochwertige, leistungsstarke Sorten verschiedener Reifezeit mit umfassender Resistenz gegen Krankheiten und Schaedlinge. Effiziente und zuverlaessige Fruehselektion. Zwetschgen: Frueh- und spaetreifende, qualitativ hochwertige und leistungsstarke Sorten mit geringer Krankheitsanfaelligkeit.