Download or read book Virus Diseases of Tropical and Subtropical Crops written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Virus Diseases of Tropical and Subtropical Crops written by Paula Tennant and published by CABI. This book was released on 2015-12-17 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes interactions of plant viruses with hosts and transmission vectors in an agricultural context. Starting with an overview of virus biology, economics and management, chapters then address economically significant plant diseases of tropical and subtropical crops. For each disease, symptoms, distribution, economic impact, causative virus, taxonomy, host range, transmission, diagnostic methods and management strategies are discussed.

Download or read book Plant Virus and Viroid Diseases in the Tropics written by K. Subramanya Sastry and published by Springer Science & Business Media. This book was released on 2013-06-26 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant virus and sub-viral pathogens pose severe constraints to the production of wide range of economically important crops worldwide. The crops raised both through true seed and vegetative propagated materials are affected with number of virus and virus-like diseases. The virus may enter into plants through seed planting materials or by vectors. Once the virus is in the field, it multiplies and spreads following definite patterns depending upon the nature of the vector and agro-meteorological conditions. Disease free crops and plants are great economic and social importance in feeding the world's population. Detection of virus and sub-viral agents at initial stages of infection is critical to reduce economic losses. For nearly two decades, ELISA and its variants played a major role in large scale virus testing and also in the production of virus-free planting materials.

Download or read book Plant Virus and Viroid Diseases in the Tropics written by K. Subramanya Sastry and published by Springer Science & Business Media. This book was released on 2014-01-06 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Around the globe, besides fungal and bacterial diseases, both virus and viroid diseases have acquired greater importance in the realm of plant pathology and call for effective management measures as they are responsible for heavy yield losses and are a matter of vital importance and concern to farmers, horticulturists, gardeners and foresters. Understanding disease epidemiology is of vital importance for formulating viable disease management practices in a given agro-ecosystem. The development and progress of plant disease epidemics are variable from region to region. Epidemiology is not a static process, but rather a dynamic course that varies with a change in the ecology, host, vector and virus systems.

Download or read book Diseases of Tropical Fruit Crops written by Randy C. Ploetz and published by CABI. This book was released on 2003 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation. Comprehensive information on diseases of the most important tropical fruit cropsChapters are devoted to a single or, in some cases, a related group of host plantsThe history, distribution, importance, symptoms, aetiology, epidemiology and management of diseases of each crop are described in detailThis book offers a comprehensive review of diseases of important tropical and some subtropical fruit crops. The history, distribution, importance, etiology, epidemiology and control of diseases of each host crop are covered, along with brief summaries on the taxonomy, origins and characteristics of each host. Additional information is given on the biology and pathology of the causal agents and on new advances that change or otherwise enhance our understanding of the nature and cause of these diseases. Plant pathologists, plantation and nursery managers, lecturers and those who are involved in tropical agriculture and horticulture will find this an essential reference.

Download or read book Viral Diseases of Field and Horticultural Crops written by L. P. Awasthi and published by Elsevier. This book was released on 2023-09-20 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viral Diseases of Field and Horticultural Crops details the fundamental and applied aspects of the viral diseases of field and horticultural crops. The book opens with a historical introduction to plant virology, important plant virologists, and landmarks. It continues with systematic coverage of viral diseases, their economic significance, disease symptoms, host range, mode of transmission, diagnostic techniques, geographic distribution, epidemiology, yield losses, and control and management of the disease. Contributions from an international group of virologists with a wide range of academic, research, professional, and specialized backgrounds in plant virology makes Viral Diseases of Field and Horticultural Crops a comprehensive and must-have resource for those engaged in the study and research of plant virology, microbiology, and plant pathology particularly viral diseases and their impact on field and horticultural crops. Provides virus characterization according to the disease pattern and symptoms they cause Covers viral diseases of cereals, oil seeds, legumes, commercial crops, spices and condiments, medicinal and aromatic crops, forage crops, vegetable crops, fruit crops, tree nuts, among others Discusses advances like applications in nanotechnology, molecular techniques for the detection and characterization of plant viruses, and the development of technologies for detecting plant viruses

Download or read book Virus and Virus like Diseases of Major Crops in Developing Countries written by Gad Loebenstein and published by Springer Science & Business Media. This book was released on 2013-12-18 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: It appears that a comprehensive and up-to-date book on the impact of virus diseases on the major crops in developing countries is now much needed, especially as there have been rapid advances in the biological and molecular characterization and detection of the pathogens and possible approaches for their control. On the other hand, the economic losses caused by many of these diseases are tremendous and much of the accumulated knowledge to diminish the crop losses has not filtered through, or cannot be applied. This book is focused on the important crops. Each chapter on a specific crop will include inter alia, geographical distribution, the viruses - symptoms, damage, detection - a brief description of the viruses concerned, and present and future ways for their control. Experts from India, Nigeria, UK, USA, France, Germany, Peru, Japan, Australia, Netherlands, Venezuela, Kazakhstan and Israel (many of them from the International Research Institutions) have contributed chapters to this book.

Download or read book Virus Diseases of Plants written by John Grainger and published by . This book was released on 1934 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Begomoviruses Occurrence and Management in Asia and Africa written by Sangeeta Saxena and published by Springer. This book was released on 2018-12-12 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Begomoviruses are one of the most interesting plant viruses to study for basic and applied research as they cause huge economic losses to agriculture industries and farmers all over the world. They belong to family Geminiviridae and are emergent plant viral pathogens which cause diseases in various crops in the tropical and subtropical regions. They are transmitted by the whitefly (B. tabaci) and have either one (monopartite DNA-A) or two (bipartite DNA-A and DNA-B) genomic components. DNA-A and DNA-B are of ~2600 - 2800 nucleotides each. A number of serious diseases of cultivated crops of the Fabaceae, Malvaceae, Solanaceae and Cucurbitaceae families are caused by Begomoviruses which are considered as threat to their cultivation in many countries. Accurate diagnosis is important for successful diseases management, since plants infected by Begomovirus do not recover, suffer serious yield losses and act as further sources of inoculum, which is then picked up and spread by their vector whitefly (B. tabaci). Reports of occurrence of new viruses and re-emergence of several known viruses in new niches have become regular event. In such a dynamic system, growth of several crop species relies on an accurate diagnosis, management and better understanding of the biology of the casual virus. This is crucial to evolve appropriate control practices and to prevent the virus infection. Researchers have achieved considerable progress in characterization, detection and management of virus on different crop species in the last decade. This book covers latest information in diagnosis of begomoviruses in the present scenario and explores the new vistas in the field of genomics and proteomics. Chapters in Section 1 illustrates the occurrence, genome organisation, transmission and diagnostics of begomoviruses. It also details the diseases caused by begomoviruses on different crops, detection techniques and management strategies in support of research findings by presentation of data, graphics, figures and tables. Section 2 is a chapterwise collection of occurrence, diversity and status of begomoviruses in Asian Africa counties where the diseases are most prevalent. This book will provide wide opportunity to the readers to have complete information and status of begomovirus in Asia and Africa. This will be useful resource for researchers and extension workers involved in the begomvirus disease diagnosis and molecular biology. Expert detection, accurate diagnosis and timely management play a significant role in keeping plants free from pathogens. In this book expert researchers share their research knowledge and literature which are vital towards the diagnosis of begomoviruses, addressing traditional plant pathology techniques as well as advanced molecular diagnostic approach. The book deals with the economically important crops including fruits, vegetables along with challenges in crop protection against diseases caused by begomovirus. This will be resourceful and handy for researcher, practitioners and also students.

Download or read book Handbook of Plant Virus Diseases written by Dragoljub D. Sutic and published by CRC Press. This book was released on 1999-06-15 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Plant Virus Diseases presents basic information about viral-caused and viral-like diseases in many cultivated crops. The editors, internationally known plant pathologists, provide authoritative descriptive symptomatic signatures of virus diseases, to aid in the diagnosis and possible control of viruses. This handbook organizes cultivated plants into groups according to their final destinations and uses after harvest-a useful grouping system that indicates that some diseases, their resultant epidemiology, and control measures are characteristic within different groups.

Download or read book Diseases of Horticultural Crops written by L. R. Verma and published by Indus Publishing. This book was released on 1999 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Potato Crop written by Hugo Campos and published by Springer Nature. This book was released on 2019-12-03 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This book provides a fresh, updated and science-based perspective on the current status and prospects of the diverse array of topics related to the potato, and was written by distinguished scientists with hands-on global experience in research aspects related to potato. The potato is the third most important global food crop in terms of consumption. Being the only vegetatively propagated species among the world’s main five staple crops creates both issues and opportunities for the potato: on the one hand, this constrains the speed of its geographic expansion and its options for international commercialization and distribution when compared with commodity crops such as maize, wheat or rice. On the other, it provides an effective insulation against speculation and unforeseen spikes in commodity prices, since the potato does not represent a good traded on global markets. These two factors highlight the underappreciated and underrated role of the potato as a dependable nutrition security crop, one that can mitigate turmoil in world food supply and demand and political instability in some developing countries. Increasingly, the global role of the potato has expanded from a profitable crop in developing countries to a crop providing income and nutrition security in developing ones. This book will appeal to academics and students of crop sciences, but also policy makers and other stakeholders involved in the potato and its contribution to humankind’s food security.

Download or read book Global Health Impacts of Vector Borne Diseases written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-10-21 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pathogens transmitted among humans, animals, or plants by insects and arthropod vectors have been responsible for significant morbidity and mortality throughout recorded history. Such vector-borne diseases â€" including malaria, dengue, yellow fever, and plague â€" together accounted for more human disease and death in the 17th through early 20th centuries than all other causes combined. Over the past three decades, previously controlled vector-borne diseases have resurged or reemerged in new geographic locations, and several newly identified pathogens and vectors have triggered disease outbreaks in plants and animals, including humans. Domestic and international capabilities to detect, identify, and effectively respond to vector-borne diseases are limited. Few vaccines have been developed against vector-borne pathogens. At the same time, drug resistance has developed in vector-borne pathogens while their vectors are increasingly resistant to insecticide controls. Furthermore, the ranks of scientists trained to conduct research in key fields including medical entomology, vector ecology, and tropical medicine have dwindled, threatening prospects for addressing vector-borne diseases now and in the future. In June 2007, as these circumstances became alarmingly apparent, the Forum on Microbial Threats hosted a workshop to explore the dynamic relationships among host, pathogen(s), vector(s), and ecosystems that characterize vector-borne diseases. Revisiting this topic in September 2014, the Forum organized a workshop to examine trends and patterns in the incidence and prevalence of vector-borne diseases in an increasingly interconnected and ecologically disturbed world, as well as recent developments to meet these dynamic threats. Participants examined the emergence and global movement of vector-borne diseases, research priorities for understanding their biology and ecology, and global preparedness for and progress toward their prevention, control, and mitigation. This report summarizes the presentations and discussions from the workshop.

Download or read book Plant Viruses and Virus Diseases written by F.C. Bawden and published by Daya Books. This book was released on 2002-04 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Subject Of Plant Viruses And Virus Diseases Are Receiving Increasing Attention At The Hands Of Research Scholars Such As Chemists, Crystallographers, Entomologists, Geneticists, Serologists, Physicists Etc. They Are Able To Bring Fresh Techniques To The Subject. The Book Is An Attempt To Describe And Correlate The Advances That Have Been Made So Far In The Study Of Plant Viruses, And Virus Diseases. During The Past Few Years, Many New Virus Diseases Have Been Described, Some Of Great Economic Importance And Some With Novel Kinds Of Symptoms; Much Has Been Done On The Factors That Affect Spread; And Insect Vectors Have Been Identified In Species Of Insects Previously Not Incriminated. More Viruses Have Been Purified And Their Chemical Constitution Has Been Further Elucidated, And The Advances In Electron Microscopy Have Provided Much Information On Their Morphology. All These Developments Have Been Incorporated In The Book. The Book Is A Treasure For Agriculture And Horticulture Departments And All Those Interested In These Subjects. Contents Chapter 1: Introduction; Definition Of Subject, Economic Importance, Historical, Views On The Nature Of Viruses, Nomenclature, Chapter 2: External Symptoms Of Infected Plants; Range Of Host Plant Reactions, Type Diseases, Virus Strains, Effects Of Environment On Symptoms, Chapter 3: Internal Symptoms Of Infected Plants; Intracellular Inclusions Formed By Tobacco Mosaic Viruses, Possible Relationship Between Tobacco Mosaic Viruses And The Intracellular Inclusions, Intracellular Inclusions Caused By Viruses Other Than Tobacco Mosaic, Internal Changes Other Than Intracellular Inclusions, Chapter 4: Methods Of Transmission; Grafting And The Use Of Dodder, Inoculation With Plant Extracts, Transmission By Insects, Seed Borne Viruses, Soil Borne Viruses, Chapter 5: The Relations Between Viruses And Their Vectors; Viruses Which Persist In Their Insect Vectors, Latent Period And Virus Multiplication In Vectors, Viruses Whose Vectors Soon Lose Infectivity, Effect Of The Number Of Insects In Transmitting, Chapter 6: Mutation, Interference Between Strains, And Recovery From Disease; Kinds Of Variation, Origin Of Variation, Acquired Immunity, Chapter 7: Serological Reactions Of Plant Viruses; Preparation Of Antisera, Methods Of Testing, The Antigenicity Of Plant Viruses, Neutralisation Of Infectivity, Specificity Of Serological Reactions, Effect Of Particle Shape Of Serological Reactions, Chapter 8: Quantitative Methods Of Assaying For Viruses; The Use Of Local Lesions, Starch Iodine Lesions, The Use Of Preciptin Tests, Chapter 9: The Purification Of Viruses; Treatment Of Plants, Tobacco Mosaic And Other Anisometric Viruses, Tomato Bushy Stunt And Other Crystalline Viruses, High Speed Centrifugation, Activity Of Purifie Preparations, Proteins From Healthy Plants, Chapter 10: Chemical And Physical Properties Of Purified Virus Preparations; Elementary Composition, Isolation And Properties Of Nucleic Acid, The Denatured Protein, Specific Volume And Hydration, Precipitation And Isoelectric Points, Chapter 11: The Crystallinity Of Plant Viruses; Optical Properties Of Crystals, Anistropy Of Flow And The Layering Phenomenon, Crystal And Liquid Crystals, Chapter 12: The Estimation Of Particle Sizes; Filtration, Sedimentation And Diffusion, Microscopy And X-Ray Diffraction, Additional Methods, The Aggregation Of Anisometric Viruses, Chapter 13: Types Of Inactivation; Inhibition Of Infectivity, Inactivation Without Lossof Serological Activity, Inactivation And Denaturation, Chapter 14: Taxonomy Of Viruses; Nomenclature And Classification, The Grouping Of Virus Strains, The Formation Of Larger Groups, Chapter 15: Virus Diseases And Host Plant Physiology; Host Plant Metabolism And Susceptibility, Effects Of Viruses On Host Plant Metabolism, The Movement Of Viruses, Chapter 16: Control Measures Against Virus Diseases; Curative Treatments, General Measures, Insect Borne Viruses, Viruses Transmitted Mechanically, Chapter 17: Speculations On The Origins Of Viruses.

Download or read book Plant Virus Epidemiology written by and published by Elsevier. This book was released on 2006-12-15 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published since 1953, Advances in Virus Research covers a diverse range of in-depth reviews providing a valuable overview of the current field of virology. In 2004, the Institute for Scientific Information released figures showing that the series has an Impact Factor of 2.576, with a half-life of 7.1 years, placing it 11th in the highly competitive category of Virology. * Edited by an experienced plant pathologist who has over 50 years experience in plant virus epidemiology* Covers topics such as Evolutionary epidemiology of plant virus disease, The control of tropical plant virus diseases, and Control of plant virus diseases* A valuable resource for students and researchers alike

Download or read book A Century of Plant Virology in India written by Bikash Mandal and published by Springer. This book was released on 2017-11-28 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a compilation of research work carried out on plant viruses during past 100 years in India. Plant viruses are important constraints in Indian agriculture. Tropical and sub-tropical environments and intensive crop cultivation practices ideally favours perpetuation of numerous plant viruses and their vectors in India, which often cause wide spread crop losses. Of all the plant pathogens, studies of plant viruses have received a special attention as they are difficult to manage. A large body of literature has been published on the plant virus research from India during past 100 years; however the information is so far not available in one place. This book provides comprehensive information on the biology, molecular biology, epidemics, crop losses, diagnosis and management of viruses and viroids occurring in India. Description of properties of the viruses are provided in the chapters comprising of different genera such as Allexivirus, Begomovirus, Babuvirus, Badnavirus, Carlavirus, Carmovirus, Cucumovirus, Closterovirus, Ilavirus, Mandrivirus, Potyvirus, Tospovirus, Tungrovirus and Sobemovirus. Virus-vector research related to aphid, thrips and whitefly is discussed. The work on the management aspects of plant viral diseases has been described with reference to the conventional, antiviral and transgenic approaches. Further, the quarantine mechanism developed in India for the exclusion of viruses and vectors has also been included. The book also provides useful information about the capacity building on the research and education on Plant Virology in India. Overall, the book covers a wide range of accounts of research findings and innovations in Plant Virology in India during past 100 years. The book will be a resourceful reference to the students, scientists, agricultural professionals and policy makers.

Download or read book Diseases of Cattle in the Tropics written by Miodrag Ristic and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the future increase in livestock production is expected to occur in the tropical and subtropical regions of the world. Cattle are the most numerous of the ruminant species in the tropics and provide the largest quantity of animal food products. More than one-third of the world's cattle are found in the tropics. Disease is the major factor which prohibits full utilization of these regions for cattle production. Various infectious and transmissible viral, rick ettsial, bacterial, and particularly protozoan and helminthic diseases, are widespread in the tropics and exert a heavy toll on the existing cattle industry there. This uncontrolled disease situation also discourages investment in cattle industries by private and government sectors. In Africa alone, it is estimated that 125 million head of cattle could be accommodated in the tropical rainbelt if the disease and other animal husbandry factors could be resolved. The potential of efficient cattle production under more favorable conditions prompted various international agencies to establish a multi million dollar International Laboratory for Research in Animal Diseases (ILRAD) in Nairobi, Kenya, Africa. In South America, principal sites for raising cattle are shifting to the savannah lands because the more fertile soils are being used for crop produc tion, however, in the savannahs also, disease remains the most powerful deterrent in implementing the cattle industry.