Kooperativer Bibliotheksverbund

Berlin Brandenburg

and
and

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Type of Medium
Language
Year
  • 1
    Language: German
    Description: Braunrost des Weizens ( Puccinia triticina ) und Echter Mehltau des Weizens ( Blumeria graminis f. sp. tritici ) gehören zu den wichtigsten Schadorganismen an Win­terweizen in Deutschland. Der Einfluss von Witterungsperioden auf beide Krankheiten ist bisher wenig verstanden. Daten zur Befallsstärke von Braunrost und echtem Mehltau an Winterweizen der Jahre 1976 bis 2010 konnten für verschiedene Standorte in Sachsen-Anhalt analysiert werden. Ein "window pane" Algorithmus wurde verwendet, um Zusammenhänge zwischen Witterung und Schaderregerauftreten zu analysieren und für beide Schaderreger zu vergleichen. Mit diesem Ansatz war es möglich über 300000 mögliche Zusammenhänge zwischen klimatischen Parametern und dem Auftreten der agrarischen Schaderreger zu untersuchen. Um tiefer gehende Einblicke in die Zusammenhänge zwischen Witterung und Schaderregerentwicklung und ihre zeitliche Variabilität während der Vegetationszeit zu bekommen, wurden Korrelogramme erstellt. Es wurde der Einfluss von Temperatur, Niederschlagssumme, Globalstrahlung und weiteren Parametern untersucht. Dabei konnten zahlreiche signifikant positive und negative Effekte auf das Auftreten der Pilzkrankheiten belegt werden. Zum Beispiel stand das Auftreten von P. triticina im direkten positiven Zusammenhang mit der mittleren Temperaturim Frühjahr, Winter und Herbst. Das Auftreten von Blumeria graminis f. sp. tritici zeigte einen signifikant negativen Zusammenhang mit der täglichen Anzahl an Sonnenstunden von Jahresbeginn bis zur Blüte. Die Ergebnisse werden...
    Keywords: Puccinia Triticina ; Blumeria Graminis F. Sp. Tritici ; Wetter ; Klima ; Korrelationen
    ISSN: 1867-0911
    Source: DataCite
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Language: English
    In: Environmental Justice, 04/2016, Vol.9(2), pp.33-47
    Description: The perception of climate change impacts is strongly influenced by the underlying social realities. In order to develop a model for climate change adaptation policies, the CC-VISAGES project (Climate Change Inferred through Social Analysis, Geography, and Environmental Systems) developed a Climatological Environmental Justice Index (CEJI) based on a developed Human Stress Index (HSI) and the Temperature Humidity Index (THI). Through a geographical information system (GIS) representation of HSI, THI, and CEJI, a vulnerability ranking of all communities in Germany, Canada, and Brazil could be revealed. The variables have been selected and measured in a country comparable manner allowing to proportion communities between the different countries. The data have been gathered from the nomenclature of territorial units for statistics (NUTS) level 3 (community level). This article will show how HSI has been developed and combined with the THI in order to develop the CEJI. A list of the vulnerable areas in each country according to HIS, THI, and ECJI will be presented as the findings and discussed.
    Keywords: Adaptability ; Environmental Equity ; Social Analysis ; Perception ; Climate Change ; Temperature ; Stress ; Humidity ; Vulnerability ; Geographic Information Systems ; Geography ; Asw, Brazil ; Anw, Canada ; Germany ; Weather Modification & Geophysical Change;
    ISSN: 1939-4071
    E-ISSN: 1937-5174
    Source: Mary Ann Liebert (via CrossRef)
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Language: English
    In: SOIL, 2018, Vol.4(1), pp.83-92
    Description: The central importance of soil for the functioning of terrestrial systems is increasingly recognized. Critically relevant for water quality, climate control, nutrient cycling and biodiversity, soil provides more functions than just the basis for agricultural production. Nowadays, soil is increasingly under pressure as a limited resource for the production of food, energy and raw materials. This has led to an increasing demand for concepts assessing soil functions so that they can be adequately considered in decision-making aimed at sustainable soil management. The various soil science disciplines have progressively developed highly sophisticated methods to explore the multitude of physical, chemical and biological processes in soil. It is not obvious, however, how the steadily improving insight into soil processes may contribute to the evaluation of soil functions. Here, we present to a new systemic modeling framework that allows for a consistent coupling between reductionist yet observable indicators for soil functions with detailed process understanding. It is based on the mechanistic relationships between soil functional attributes, each explained by a network of interacting processes as derived from scientific evidence. The non-linear character of these interactions produces stability and resilience of soil with respect to functional characteristics. We anticipate that this new conceptional framework will integrate the various soil science disciplines and help identify important future research questions at the interface between disciplines. It allows the overwhelming complexity of soil systems to be adequately coped with and paves the way for steadily improving our capability to assess soil functions based on scientific understanding.
    Keywords: Agriculture;
    ISSN: SOIL
    E-ISSN: 2199-398X
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Language: English
    In: SOIL Discussions, 10/04/2017, pp.1-15
    ISSN: SOIL Discussions
    E-ISSN: 2199-3998
    Source: CrossRef
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Language: English
    In: Journal of Plant Diseases and Protection, 1 December 2013, Vol.120(5/6), pp.238-244
    Keywords: Biological sciences -- Biology -- Zoology -- Wheat ; Biological sciences -- Agriculture -- Agricultural sciences -- Wheat ; Biological sciences -- Biology -- Zoology -- Wheat ; Biological sciences -- Biology -- Developmental biology -- Wheat ; Biological sciences -- Biology -- Biological taxonomies -- Wheat ; Biological sciences -- Biology -- Botany -- Wheat ; Physical sciences -- Chemistry -- Chemical compounds -- Wheat ; Biological sciences -- Ecology -- Animal ecology -- Wheat ; Biological sciences -- Biology -- Genetics -- Wheat ; Biological sciences -- Agriculture -- Farming -- Wheat
    ISSN: 18613829
    E-ISSN: 18613837
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Language: English
    In: Journal of immunology (Baltimore, Md. : 1950), 01 April 2005, Vol.174(7), pp.4203-9
    Description: Dendritic cells (DCs) are a key part of host defense against microbial pathogens, being part of the innate immune system, but also instructing the adaptive T cell response. This study was designed to evaluate whether human DCs directly contribute to innate immunity by killing intracellular bacteria, using tuberculosis as a model. DCs were detected in bronchoalveolar lavage samples indicating that DCs are available for immediate interaction with Mycobacterium tuberculosis (M. Tb) after inhalation of the pathogen. The phenotype of DC in bronchoalveolar lavage closely resembles monocyte-derived immature DC (iDC) according to the expression of CD1a, CD83, and CCR7. The antimicrobial activity of iDC against intracellular M. Tb inversely correlated with TNF-alpha-release and was enhanced by treatment with anti-TNF-alpha Abs. Differentiation of iDC into mature DC by addition of TNF-alpha or activation via Toll-like receptors further reduced killing of M. Tb. The antibacterial activity against intracellular M. Tb of all DCs was significantly lower than alveolar macrophages. Therefore, the maintenance of a pool of DCs at the site of disease activity in tuberculosis, and the maturation of these DC by TNF-alpha provides a mechanism by which M. Tb escapes the innate immune system.
    Keywords: Cell Differentiation ; Immunity, Innate ; Bacteria -- Immunology ; Dendritic Cells -- Cytology
    ISSN: 0022-1767
    Source: MEDLINE/PubMed (U.S. National Library of Medicine)
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Text Resource
    Text Resource
    Universitäts- und Landesbibliothek Sachsen-Anhalt
    Description: Braunrost und Echter Mehltau an Winterweizen gehören zu den gefährlichsten Weizenkrankheiten weltweit und verursachen teilweise katastrophale Ernteeinbußen. Die Quantifizierung klimatischer Einflüsse auf die Befallshäufigkeit beider Krankheiten und die Berechnung von Befallsszenarios unter Klimawandel mit Hilfe von Klimasimulationen waren die Hauptziele dieser Arbeit. Der Einfluss meteorologischer Faktoren und der Wirtsanfälligkeit auf die Befallshäufigkeit beider Schadorganismen in Sachsen-Anhalt wird mittels „window pane“ Korrelationen untersucht und logistischer Regressionsmodelle quantifiziert. Die empirischen Modelle werden durch eine genestete Kreuzvalidierung ausgiebig validiert und mit Klimaszenariodaten des STARS-Modells betrieben. Die Ergebnisse zeigten, dass beide Schaderreger sehr unterschiedlich von meteorologischen Faktoren beeinflusst werden. In Folge von Klimaveränderungen nahm die Bedeutung von Braunrost in Sachsen-Anhalt zu, die von Echtem Mehltau ab.... ; Leaf rust and powdery mildew of winter wheat belong to the most hazardous global wheat diseases and are responsible for severe crop yield losses. Main aims of this work were the quantification of the influence of meteorological variables on the occurrence of both diseases and the projection of the results into the future using climate simulations. The influence of meteorological factors and host plant susceptibility on leaf rust and powdery mildew incidence of winter wheat in Saxony-Anhalt is studied by using “window pane” correlations and quantified utilizing logistic regression models. The empirical models are extensively validated by a nested cross-validation and run with climate scenario data provided by the STARS model, to generate disease scenarios under changed climatic conditions. Results showed that meteorological variables affected both pathogens very differently, leading to an increase in leaf rust and decrease in powdery mildew incidence projected for the state....
    Keywords: Online-Publikation ; Hochschulschrift ; Puccinia Triticina; Blumeria Graminis F.Sp. Tritici; Pflanzenkrankheiten; Pilzliches Pathogen; Klimawandel; Witterung; Korrelation; Logistische Regression;Kreuzvalidierung; Modellierung ; Puccinia Triticina; Blumeria Graminis F.Sp. Tritici; Plant Diseases; Fungal Pathogen; Climate Change; Weather; Correlation; Logistic Regression; Cross Validation; Modelling ; Ddc::600 Technik, Medizin, Angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft Und Verwandte Bereiche
    Source: DataCite
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. Further information can be found on the KOBV privacy pages