National Union Catalog

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Publisher :
ISBN 13 :
Total Pages : 744 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis National Union Catalog by :

Download or read book National Union Catalog written by and published by . This book was released on 1968 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.

National Agricultural Library Catalog

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ISBN 13 :
Total Pages : 634 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis National Agricultural Library Catalog by : National Agricultural Library (U.S.)

Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1972 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The National union catalog, 1968-1972

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Publisher :
ISBN 13 :
Total Pages : 744 pages
Book Rating : 4.3/5 (2 download)

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Book Synopsis The National union catalog, 1968-1972 by :

Download or read book The National union catalog, 1968-1972 written by and published by . This book was released on 1973 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The National Union Catalogs, 1963-

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ISBN 13 :
Total Pages : 744 pages
Book Rating : 4.:/5 (321 download)

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Book Synopsis The National Union Catalogs, 1963- by :

Download or read book The National Union Catalogs, 1963- written by and published by . This book was released on 1964 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

National Agricultural Library Catalog, 1966-1970: Names

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ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis National Agricultural Library Catalog, 1966-1970: Names by : National Agricultural Library (U.S.)

Download or read book National Agricultural Library Catalog, 1966-1970: Names written by National Agricultural Library (U.S.) and published by . This book was released on 1973 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Resistance and Virulence Relationships in the Triticum Aestivum: Puccinia Graminis Tritici System

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ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Resistance and Virulence Relationships in the Triticum Aestivum: Puccinia Graminis Tritici System by : Jon Michael Prescott

Download or read book Resistance and Virulence Relationships in the Triticum Aestivum: Puccinia Graminis Tritici System written by Jon Michael Prescott and published by . This book was released on 1970 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Genetic and virulence diversity of Puccinia graminis f. sp. Tritici populations in Ethiopia and stem rust resistance genes in wheat

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Publisher : Cuvillier Verlag
ISBN 13 : 3736932936
Total Pages : 110 pages
Book Rating : 4.7/5 (369 download)

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Book Synopsis Genetic and virulence diversity of Puccinia graminis f. sp. Tritici populations in Ethiopia and stem rust resistance genes in wheat by : Belayneh Admassu Yimer

Download or read book Genetic and virulence diversity of Puccinia graminis f. sp. Tritici populations in Ethiopia and stem rust resistance genes in wheat written by Belayneh Admassu Yimer and published by Cuvillier Verlag. This book was released on 2010-03-23 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of a recent spread of a new and highly virulent race of Puccinia graminis f. sp. tritici called Ug99, stem rust is becoming a serious threat to wheat production in Ethiopia and other east African countries. Therefore, there is an urgent need to analyse the virulence spectrum of Pgt populations in Ethiopia. Wheat stem rust samples were collected in 2006 and 2007 in Arsi, Bale, Shewa and the Northwest regions of Ethiopia to determine the virulence diversity and race distribution in P. graminis f. sp. tritici populations. Stem rust incidence was high in Arsi, Bale and East Shewa. In Northwest Ethiopia, and North and West Shewa, stem rust was prevalent at low levels. A total of 152 isolates was analyzed and 22 races were identified. Races TTKSR (Ug99), TTHSR and RRTTR were predominant with frequencies of 26.6, 17.7 and 11.1%, respectively. These races were also detected in all regions. It turned out that the highly virulent race designated as Ug99 was present throughout the country and dominated in all regions except Northwest Ethiopia. A variant of Ug99, which is virulent against Sr24 was not detected in this study. Four stem rust resistance genes (Sr13, Sr30, Sr36 and SrTmp) were found to confer resistance to most of the races prevalent in Ethiopia. With the exception of Sr30, which is not effective to Ug99, the other three genes can be used in breeding for resistance to stem rust in Ethiopia.

Genetic and Virulence Diversity of Puccinia Graminis F. Sp. Tritici Populations in Ethiopia and Stem Rust Resistance Genes in Wheat

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Publisher :
ISBN 13 : 9783869552934
Total Pages : 99 pages
Book Rating : 4.5/5 (529 download)

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Book Synopsis Genetic and Virulence Diversity of Puccinia Graminis F. Sp. Tritici Populations in Ethiopia and Stem Rust Resistance Genes in Wheat by : Belayneh Admassu

Download or read book Genetic and Virulence Diversity of Puccinia Graminis F. Sp. Tritici Populations in Ethiopia and Stem Rust Resistance Genes in Wheat written by Belayneh Admassu and published by . This book was released on 2010 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Host-Pathogen Interactions in Plant Disease

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Publisher : Elsevier
ISBN 13 : 0080926355
Total Pages : 221 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Host-Pathogen Interactions in Plant Disease by : J. E. Vanderplank

Download or read book Host-Pathogen Interactions in Plant Disease written by J. E. Vanderplank and published by Elsevier. This book was released on 2012-12-02 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the genetics, biochemistry, and epidemiology of host-pathogen interactions in plant disease, especially as they concern the breeding of crops for disease resistance. It analyzes a wealth of information that has not previously been recorded in other books or reviews. Some of it stems from basic surveys of disease in the field. The analysis of these surveys not only explains a great deal about host-pathogen interactions that was heretofore obscure, but also indicates directions for future research. Other data, from original papers, have now been coordinated for the first time and organized in a way that suggests new areas of research. The book contains more than fifty new tables that integrate data and relate them to general principles of host-pathogen interactions.For plant pathologists and plant breeders concerned with the control of plant disease, the book shows how to manipulate the host and, indirectly, the pathogen in order to control disease. It analyzes records of resistance against disease that time has shown to be stable in an effort to determine what has kept this resistance stable. It also analyzes the structure of virulence in populations of a pathogen, and demonstrates how virulence can be deliberately restricted. The author updates information on the gene-for-gene hypothesis and discusses the numerical and biological implications of the hypothesis. He analyzes the structure of epidemics based on three fundamental variables: the initial inoculum, the progeny/parent ratio of the pathogen, and the latent period. The author concentrates on the progeny/parent ratio - a subject not hitherto probed in detail in the literature - and shows how to determine the type of epidemic that can occur.

Genetic and Molecular Basis of Plant Pathogenesis

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Publisher : Springer
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Genetic and Molecular Basis of Plant Pathogenesis by : J. E. Van der Plank

Download or read book Genetic and Molecular Basis of Plant Pathogenesis written by J. E. Van der Plank and published by Springer. This book was released on 1978 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variation in the resistance of the host and in the pathogenicity of the parasite. The gene-for-gene and the protein-for-protein hypotheses. The protein-for-protein hypothesis: temperature effects and other matters. Common antigenic surfaces in host and pathogen. Other lange molecules in relation to gene-for-gene disease. Population genetics of the pathogen. Horizontal resistance to disease. Selective pathotoxins in host-pathogens specificity. A molecular hypothesis of vertical and horizontal resistance. Biothopy, necrotrophy, and the lineage of symbiosis.

Disease Resistance in Plants

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Publisher : Academic Press
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Disease Resistance in Plants by : J. E. Van der Plank

Download or read book Disease Resistance in Plants written by J. E. Van der Plank and published by Academic Press. This book was released on 1984-06-28 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disease Resistance in Plants, Second Edition, looks at genetic, epidemiologic, biochemical, and biometric principles for developing new cultivars possessing genetic resistance to diseases. It examines the nature of disease resistance and resistance genes, and it highlights the importance of stabilizing selection, sugar, biotrophy, and necrotrophy to obtain the greatest possible yields. Organized into 17 chapters, this volume begins with an overview of disease resistance in plants and the ways to develop disease-resistant variants. It then discusses unspecific resistance; the resistance gene paradox; susceptibility and resistance within narrow host taxa; phenotypic variation and gene numbers in host plants; discontinuous variation and cytoplasmic inheritance; and experimental difficulties in partitioning variance. The reader is also introduced to epistasis and the structure of virulence in pathogens; the notion of physiological race; how the pathogen adapts to the host; mutation in the pathogen from avirulence to virulence; horizontal and vertical resistance to disease and its epidemiological effects; and the link between protein polymorphism and vertical resistance. In addition, the book discusses genes for susceptibility in the host versus genes for avirulence (or virulence) in the pathogen; sink-induced loss of resistance; high-sugar disease processes and biotrophy; slow rusting of cereal crops; plant resistance against endemic disease; and the accumulation of resistance genes in heterogeneous host populations. This book will be useful to plant pathologists and plant breeders.