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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 68 (0.026 seconds)Spelling suggestions: "subject:"downs""
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Nutrient uptake by Peronospora and Phytophthora hyphaeEl-Gariani, Najat Khalifa January 2003 (has links)
No description available.
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Genetic analyses of adaptive traits in pearl millet (Pennisetum glaucum (L.) R. Br.)Padi, Francis Kwame January 2002 (has links)
No description available.
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Development and extension of a disease forecasting and chemical control system for onion downy mildew /MacManus, Gerard P. V. January 2000 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.
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| 4 |
The population history of the downy woodpecker (Picoides pubescens) in North America : insights from genetics, ecological niche modeling and bioacoustics / Paulo C. Pulgarín-RestrepoPulgarín-Restrepo, Paulo César, University of Lethbridge. Faculty of Arts and Science January 2011 (has links)
The last Quaternary ice age strongly influenced the distribution of most plants and
animals. Here I used genetics, ecological niche modeling and bioacoustics to understand
the possible historical patterns behind the current distribution of the Downy Woodpecker
(Picoides pubescens) in North America. Analyses of mtDNA sequences and seven
microsatellites loci suggest low genetic differentiation among populations (a maximum of
two genetic groups), however population structure is subtle. Ecological niche modeling
suggests several refugia SE of US, and some restricted areas east and west of the Rocky
Mountains with ecological suitable conditions for the species at 18-21 kya. The analysis
of the pik call suggested no geographic variation in the frequency and temporal variables
studied. It is likely that the Downy Woodpecker expanded and colonized northern North
America quickly after the LGM from a southern refugium / x, 96 leaves ; 29 cm
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An Analysis of acoustic Ccmmunication within the social system of Downy Woodpeckers (Picoides pubescens)Dodenhoff, Danielle. January 2002 (has links)
Thesis (Ph. D.)--Ohio State University, 2002. / Title from first page of PDF file. Document formatted into pages; contains xiii, 132 p. Includes abstract and vita. Advisor: Douglas Nelson, Dept. of Evolution, Ecology, and Organismal Biology. Includes bibliographical references (p. 126-132).
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Downy mildew of cabbage and related plantsFelton, M. W. January 1941 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1941. / Typescript. Includes abstract and vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 97-102).
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An analysis of acoustic communication within the social system of Downy Woodpeckers (Picoides pubescens) /Dodenhoff, Danielle. January 2002 (has links)
No description available.
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Identification and mapping of the RPp8 cluster disease resistance genes in Arabidopsis Thaliana, that recognise Peronospora ParasiticaChimot-Marolle, Patricia Nathali Claudette January 1997 (has links)
No description available.
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Genetic and molecular dissection of the RPP2 locus of the Arabidopsis thaliana accession COL-5 that confers resistance to the Peronospora parasitica isolate CALA2Sinapidou, Evaggelia January 2000 (has links)
No description available.
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Host-parasite relationships in tissue cultures of sunflower and downy mildewGray, Alexander Bruce January 1986 (has links)
No description available.
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