Prácticas de fitopatología general. Univ. Sevilla PDF Download

Author:
Publisher:
ISBN: 9788469993408
Category :
Languages : es
Pages :

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Author: American Library Association
Publisher:
ISBN:
Category : Libraries
Languages : en
Pages : 76

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Author: David R Jones
Publisher: CABI
ISBN: 1780647190
Category : Science
Languages : en
Pages : 633

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This book provides a comprehensive guide to the large number of diseases, disorders and injuries that can cause severe economic losses to banana, abacá and enset crops, and the fungi, bacteria, phytoplasmas, viruses, nematodes and abiotic factors involved. The monoculture of certain banana cultivars in large plantations make the crop particularly susceptible to catastrophic losses from disease and smallholders can also experience major problems. New approaches to breeding, crop management and handling are being developed to meet challenges posed by emerging threats. Handbook of Diseases of Banana, Abacá and Enset both describes and illustrates diseases and is printed in full colour throughout, creating a valuable diagnostic tool. It covers: - The origin and classification of banana, the safe movement of Musa germplasm and banana breeding for disease resistance. - Recent areas of growing research on the most important diseases of banana, such as black leaf streak, Fusarium wilt, Xanthomonas bacterial wilt and bunchy top. - Significant advances relating to pathogens causing less serious and widespread diseases. Authored by an international team of experts, this is an essential reference for all 'banana doctors' around the world. It serves as a useful field and laboratory guide, as well as a source of information for all those investigating diseases of banana, abacá and enset crops.

Author: Jesús L. Romalde
Publisher: Frontiers Media SA
ISBN: 2889630501
Category :
Languages : en
Pages : 375

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The great diversity of microbial life is the remaining major reservoir of unknown biological diversity on earth. To understand this vast, but largely unperceived diversity with its untapped genetic, enzymatic and industrial potential, microbial systematics is undergoing a revolutionary change in its approach to describe novel taxa based on genomic/envirogenomic information. The characterization of an organism is no longer bounded by methodological barriers, and it is now possible to fully sequence the whole genome of a strain to study individual genes, or to examine the genetic information by using different techniques. In fact, application of genomics is helping not only to provide a better understanding of the boundaries of genera and higher levels of classification, but also to refine our definition of the species concept. In addition, increased understanding of phylogeny is allowing to predict the genetic potential of microorganisms for biotechnological applications and adaptation to environmental changes. The present Research Topic on “Microbial Taxonomy, Phylogeny and Biodiversity” compiles a collection of papers covering the use of genomic sequence data in microbial taxonomy and systematics, including evolutionary relatedness of microorganisms; application of comparative genomics in systematic studies; or metagenomic approaches for biodiversity studies. We hope that this eBook incentives and encourages researchers for future discussions on microbial taxonomy and phylogenetics.

Author: George R. Proctor
Publisher: Royal Botanic Gardens Kew
ISBN: 9781842464038
Category : Science
Languages : en
Pages : 0

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The three islands comprising the Cayman Islands support 415 native taxa in a land area over 100 square miles, 29 of which are uniquely Caymanian. This field guide satisfies the needs of the professional botanist, while providing the non-expert and eco-tourist with an introduction to the unique endemic flora of the Cayman Islands.

Author: Kenneth Mather
Publisher: Springer Science & Business Media
ISBN: 1461333873
Category : Science
Languages : en
Pages : 239

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In the second edition of Biometricai Genetics, which appeared in 1971, we set out to give a general account of the subject as it had developed up to that time. Such an account necessarily had to be comprehensive and reasonably detailed. Although it could be, and indeed has been, used by those who were making an acquaintance with this branch of genetics for the first time, it went beyond their needs. We have been encouraged therefore to write an introduction to the genetical analysis of continuous variation aimed primarily at senior undergraduate and postgraduate students, and concentrating on basic considerations, basic principles and basic techniques. This has meant, of course, omitting all reference to some phenomena of more restricted interest, notably sex-linkage, ma ternal effects, haploidy and polyploidy. It has meant, too, that even with some phenomena which have been included, like interactions, linkage and effective factors, the discussions cannot go into full detail. Anyone who is interested, however, can find further information in Biometricai Genetics, to which detailed references have been given where it ap peared that these would be helpful. The order of presentation has been changed with the aim of making it easier for beginners.

Author: Ian Robert Hall
Publisher: Timber Press (OR)
ISBN: 0881928607
Category : Art
Languages : en
Pages : 304

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Whether the world's best truffles are found in Piedmont or Perigord inspires impassioned debate, but the effects of dwindling supply and insatiable demand for the elusive, ultimate mushroom are unquestionable: prices through the roof, intrigue and deception, and ever more intensive efforts to cultivate. The secrets of when, how, and where to collect truffles have benn passed from generation to generation since ancient times, but artificial cultivation remains the holy grail. Here in the most comprehensive practical treatment of the gastronomic treasure to date, the art and science of the high-stakes pursuit come together. Their enthusiasm and expertise leavened with wry humor, the authors explore the newest techniques; they describe the commercial species in detail along with their host plants, natural habitats, cultivation and mintenance, pests and diseases, and harvesting with pigs, dogs, truffle flies, and even the electronic nose. Pursuit of the fungus that costs more than gold is not for the faint of heart nor for those in a hurry, as under ideal conditions, truffle production in artificial truffieres can begin after three years but results may not be seen until a decade after planting, and maximum yields not for another decade still. So there is time to read and prepare, and no better source than this one.

Author: Marcus Salomon Krüger
Publisher:
ISBN:
Category : Botany
Languages : de
Pages : 480

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Author: J.R. Spkatch
Publisher: Elsevier
ISBN: 0323163289
Category : Science
Languages : en
Pages : 615

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The Bacteria: Volume VII: Mechanisms of Adaptation explores the mechanisms of bacterial adaptations and covers topics ranging from bacterial spores, cysts, and stalks to nitrogen fixation, bacterial chemotaxis, bacteriophage growth, and the structure and biosynthesis of bacterial cell walls. The roles of appendages and surface layers in adaptation of bacteria to their environment are also considered, along with cell division in Escherichia coli. This volume is comprised of nine chapters and begins with a discussion on the structure, properties, formation, and regulation of spores, cysts, and stalks in actinomycetes, blue-green bacteria, myxobacteria, Bacillus, Azotobacter, and Caulobacter. The reader is then introduced to the biochemistry, regulation, genetics, and evolution of nitrogen fixing in organisms; the receptors involved in bacterial chemotaxis and the nature of the sensing mechanism; the outer membrane of gram-negative bacteria; and bacterial functions involved in nutrient detection and acquisition. The roles played by organelles and surface layers in the adaptation of bacteria to their environment are also examined. The final chapter deals with the regulation of, and coordination between, the multitude of events involved in cell division in Escherichia coli. This monograph will be a useful resource for microbiologists, bacteriologists, biochemists, and biologists.

Author: Carlos Fuentes
Publisher: Houghton Mifflin Harcourt
ISBN: 9780395924990
Category : History
Languages : en
Pages : 404

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An exploration of Spanish culture in Spain and the Americas traces the social, political, and economic forces that created that culture.