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Träfflista för sökning "AMNE:(LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Livsmedelsvetenskap) "

Sökning: AMNE:(LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Livsmedelsvetenskap)

  • Resultat 1-10 av 5348
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1.
  • Johnsson, Anna-Ida, et al. (författare)
  • Specific SCAR markers and multiplex real-time PCR for quantification of two Trichoderma biocontrol strains in environmental samples
  • 2011
  • Ingår i: BioControl. - : Springer Science and Business Media LLC. - 1386-6141 .- 1573-8248. ; 56, s. 903-913
  • Tidskriftsartikel (refereegranskat)abstract
    • Several strains from the genus Trichoderma (Ascomycetes, Hypocreales) are commercially used as biocontrol agents, e.g. in formulations containing the two Trichoderma strains IMI206039 (Hypocrea parapilulifera B.S. Lu, Druzhinina & Samuels) and IMI206040 (T. atroviride P. Karst). To quantify the presence of the two isolates after application, we developed primers for SCAR markers (Sequence-Characterised Amplified Region). In order to quantify both fungal strains simultaneously, we also designed fluorophore-labelled probes distinguishing the two strains, to be used in combination with the SCAR primers. In incubations of two different soils, artificially inoculated and maintained under controlled conditions, the quantification through amplification with the SCAR markers in qPCR and through colony-forming units from plate counting correlated well. Further tests of the markers on samples taken from a golf green treated with a product containing both strains indicated that the two biocontrol strains did not establish, either on the golf green or in the surrounding area.
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  • Von Rosen, Dietrich (författare)
  • Non-negative estimation of variance components in heteroscedastic one-way random-effects ANOVA models
  • 2010
  • Ingår i: Statistics. - : Informa UK Limited. - 0233-1888 .- 1029-4910. ; 44, s. 557-569
  • Tidskriftsartikel (refereegranskat)abstract
    • There is a considerable amount of literature dealing with inference about the parameters in a heteroscedastic one-way random-effects ANOVA model. In this paper, we primarily address the problem of improved quadratic estimation of the random-effect variance component. It turns out that such estimators with a smaller mean squared error compared with some standard unbiased quadratic estimators exist under quite general conditions. Improved estimators of the error variance components are also established.
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  • Almered Olsson, Gunilla, 1951, et al. (författare)
  • Food systems sustainability: For whom and by whom? – An examination of different 'food system change' viewpoints
  • 2018
  • Ingår i: Development Research Conference 2018: “Rethinking development”, 22–23 August 2018, Gothenburg, Sweden.
  • Konferensbidrag (refereegranskat)abstract
    • The United Nations identifies the food crisis as one of the primary overarching challenges facing the international community. Different stakeholders in the food system have widely different perspectives and interests, and challenging structural issues, such as the power differentials among them, remain largely unexamined. These challenges make rational discourse among food system actors from different disciplines, sectors and levels difficult. These challenges can often prevent them from working together effectively to find innovative ways to respond to food security challenges. This means that finding solutions to intractable and stuck issues, such as the food crisis often stall, not at implementation, but at the point of problem identification. Food system sustainability means very different things to different food system actors. These differences in no way undermine or discount the work carried out by these players. However, making these differences explicit is an essential activity that would serve to deepen theoretical and normative project outcomes. Would the impact and reach of different food projects differ if these differences were made explicit? The purpose of this initial part of a wider food system research project is not to search for difference or divergence, with the aim of critique, but rather to argue that by making these differences explicit, the overall food system project engagement will be made more robust, more inclusive and more encompassing. This paper starts with some discussion on the different food system perspectives, across scales, regions and sectors but focuses primarily on the design of processes used to understand these divergent and at times contradictory views of what a sustainable food system may be. This paper draws on ongoing work within the Mistra Urban Futures project, using the food system projects in cities as diverse as Cape Town, Manchester, Gothenburg and Kisumu as sites for this enquiry.
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  • Skovsgaard, Jens Peter (författare)
  • Bog om tarmvridrøn
  • 2013
  • Ingår i: Skoven. - 0106-8539. ; 45, s. 551-551
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Book review N. Mayer & R.T. Klumpp (ed.) 2013: Elsbeere in Österreich – Monographie. Verein zur Erhaltung, Pflege und Vermarktung der Elsbeere - Genussregion Wiesenwienerwald Elsbeere, Michelbach.
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10.
  • Messing, Ingmar (författare)
  • Land and land use : Natural preconditions
  • 2011
  • Ingår i: Agriculture and Forestry in Sweden since 1900- a cartographic description. - 9789187760617 ; , s. 14-22
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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