Download or read book EPIDEMIOLOGY OF MONILIOPHTHORA ROBERI A field study in the Atlantic Zone of Costa Rica written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Stress and its Management Perspectives and Strategies written by B. Venkateswarlu and published by Springer Science & Business Media. This book was released on 2011-11-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crops experience an assortment of environmental stresses which include abiotic viz., drought, water logging, salinity, extremes of temperature, high variability in radiation, subtle but perceptible changes in atmospheric gases and biotic viz., insects, birds, other pests, weeds, pathogens (viruses and other microbes). The ability to tolerate or adapt and overwinter by effectively countering these stresses is a very multifaceted phenomenon. In addition, the inability to do so which renders the crops susceptible is again the result of various exogenous and endogenous interactions in the ecosystem. Both biotic and abiotic stresses occur at various stages of plant development and frequently more than one stress concurrently affects the crop. Stresses result in both universal and definite effects on plant growth and development. One of the imposing tasks for the crop researchers globally is to distinguish and to diminish effects of these stress factors on the performance of crop plants, especially with respect to yield and quality of harvested products. This is of special significance in view of the impending climate change, with complex consequences for economically profitable and ecologically and environmentally sound global agriculture. The challenge at the hands of the crop scientist in such a scenario is to promote a competitive and multifunctional agriculture, leading to the production of highly nourishing, healthy and secure food and animal feed as well as raw materials for a wide variety of industrial applications. In order to successfully meet this challenge researchers have to understand the various aspects of these stresses in view of the current development from molecules to ecosystems. The book will focus on broad research areas in relation to these stresses which are in the forefront in contemporary crop stress research.
Download or read book Agroforestry and Biodiversity Conservation in Tropical Landscapes written by Götz Schroth and published by Island Press. This book was released on 2013-03-22 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroforestry -- the practice of integrating trees and other large woody perennials on farms and throughout the agricultural landscape -- is increasingly recognized as a useful and promising strategy that diversifies production for greater social, economic, and environmental benefits. Agroforestry and BiodiversityConservation in Tropical Landscapes brings together 46 scientists and practitioners from 13 countries with decades of field experience in tropical regions to explore how agroforestry practices can help promote biodiversity conservation in human-dominated landscapes, to synthesize the current state of knowledge in the field, and to identify areas where further research is needed. Agroforestry and Biodiversity Conservation in Tropical Landscapes is the first comprehensive synthesis of the role of agroforestry systems in conserving biodiversity in tropical landscapes, and contains in-depth review chapters of most agroforestry systems, with examples from many different countries. It is a valuable source of information for scientists, researchers, professors, and students in the fields of conservation biology, resource management, tropical ecology, rural development, agroforestry, and agroecology.
Download or read book Plant Microbiomes for Sustainable Agriculture written by Ajar Nath Yadav and published by Springer Nature. This book was released on 2020-03-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book encompasses the current knowledge of plant microbiomes and their potential biotechnological application for plant growth, crop yield and soil health for sustainable agriculture. The plant microbiomes (rhizospheric, endophytic and epiphytic) play an important role in plant growth, development, and soil health. Plant and rhizospheric soil are a valuable natural resource harbouring hotspots of microbes, and it plays critical roles in the maintenance of global nutrient balance and ecosystem function. The diverse group of microbes is key components of soil–plant systems, where they are engaged in an intense network of interactions in the rhizosphere/endophytic/phyllospheric. The rhizospheric microbial diversity present in rhizospheric zones has a sufficient amount of nutrients release by plant root systems in form of root exudates for growth, development and activities of microbes. The endophytic microbes are referred to those microorganisms, which colonize in the interior of the plant parts, viz root, stem or seeds without causing any harmful effect on host plant. Endophytic microbes enter in host plants mainly through wounds, naturally occurring as a result of plant growth, or through root hairs and at epidermal conjunctions. Endophytes may be transmitted either vertically (directly from parent to offspring) or horizontally (among individuals). The phyllosphere is a common niche for synergism between microbes and plant. The leaf surface has been termed as phyllosphere and zone of leaves inhabited by microorganisms as phyllosphere. The plant part, especially leaves, is exposed to dust and air currents resulting in the establishments of typical flora on their surface aided by the cuticles, waxes and appendages, which help in the anchorage of microorganisms. The phyllospheric microbes may survive or proliferate on leaves depending on extent of influences of material in leaf diffuseness or exudates. The leaf diffuseness contains the principal nutrients factors (amino acids, glucose, fructose and sucrose), and such specialized habitats may provide niche for nitrogen fixation and secretions of substances capable of promoting the growth of plants. The microbes associated with plant as rhizospheric, endophytic and epiphytic with plant growth promoting (PGP) attributes have emerged as an important and promising tool for sustainable agriculture. PGP microbes promote plant growth directly or indirectly, either by releasing plant growth regulators; solubilization of phosphorus, potassium and zinc; biological nitrogen fixation or by producing siderophore, ammonia, HCN and other secondary metabolites which are antagonistic against pathogenic microbes. The PGP microbes belong to different phylum of archaea (Euryarchaeota); bacteria (Acidobacteria, Actinobacteria, Bacteroidetes, Deinococcus-Thermus, Firmicutes and Proteobacteria) and fungi (Ascomycota and Basidiomycota), which include different genera namely Achromobacter, Arthrobacter, Aspergillus, Azospirillum, Azotobacter, Bacillus, Beijerinckia, Burkholderia, Enterobacter, Erwinia, Flavobacterium, Gluconoacetobacter, Haloarcula, Herbaspirillum, Methylobacterium, Paenibacillus, Pantoea, Penicillium, Piriformospora, Planomonospora, Pseudomonas, Rhizobium, Serratia and Streptomyces. These PGP microbes could be used as biofertilizers/bioinoculants at place of chemical fertilizers for sustainable agriculture. The aim of “Plant Microbiomes for Sustainable Agriculture” is to provide the current developments in the understanding of microbial diversity associated with plant systems in the form of rhizospheric, endophytic and epiphytic. The book is useful to scientist, research and students related to microbiology, biotechnology, agriculture, molecular biology, environmental biology and related subjects.
Download or read book Primates in Fragments written by Laura K. Marsh and published by Springer Science & Business Media. This book was released on 2013-09-07 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is number two in a series for Primates in Fragments. In this volume, ten years after the first http://www.springer.com/social+sciences/anthropology+%26+archaeology/book/978-0-306-47696-9, we continue to address issues regarding primates within a fractured landscape. There are seven sections based on specific categories of primates in fragments. In the Introductory section, authors discuss the issues surrounding primates in remnant habitats as well as encourage discussion about what we mean by fragmentation on a landscape scale. In the Long-Term and Regional Studies section, authors present information on changes that have occurred during longer studies as well as changes that have occurred over regions. In the Landscape, Metapopulations and the Matrix section, authors cover topics from dry to moist forests, and from metapopulations to single species use of multiple fragments locations. In Feeding and Behavioral Ecology, authors take a closer look at the flexibility and responsiveness of primates in fragments in terms of their food choices, resource use, and behavioral changes. In Endemic, Endangered, and Nocturnal Primates authors uncover details involving critical primates living in major city centers to the heights of the Himalayas. In Genetics, Disease and Parasites authors cover topics including population viability, disease and parasite transmission between primates in fragments and humans. Finally, in the Conservation and Ecology: Threats and Management section, we synthesize information in this volume and make recommendations for the future of work in this field and the survivability of primates in fragments.
Download or read book The International Cocoa Trade written by Robin Dand and published by Elsevier. This book was released on 2010-12-07 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: ‘An overview of the history of cocoa, the factors affecting its production and consumption as well as how the trade is conducted, various risks mitigated, and by whom. ...The International Cocoa Trade is a work designed to inform all on the subject of cocoa and an essential guide for those involved in its trade.’ Dr J. Vingerhoets, Executive Director, ICCO Cocoa is a valuable commodity, and the cocoa trade involves many different parties from growers and exporters through dealers and factories to those trading futures and options and the banks they deal with. The International Cocoa Trade provides an authoritative and comprehensive review of the cocoa trade at the beginning of the twenty-first century, and the main factors that drive and affect that business. The opening chapter of the third edition examines the history and origins of the international cocoa trade, and its recent developments. The agronomics of cocoa production are discussed in chapter two whilst chapter three deals with the environmental and practical factors affecting cocoa production. Chapters four, five and six cover issues around the export and trading of physical cocoa, including the actuals market, the physical contracts used and the futures and options markets. In chapter seven, the international consumption and stocks of cocoa are reviewed with chapter eight discussing the issue of quality assessment of cocoa beans for international trade. Finally, chapter nine focuses on the end product, examining the processing of cocoa beans and the manufacture of chocolate. Updated appendices provide copies of some of the most important documents used in the cocoa trade, including contracts, sale rules and world production statistics. This comprehensively updated third edition of The International Cocoa Trade ensures its continued status as the standard reference for all those involved in the production consumption and international trading of cocoa. Provides an authoritative and comprehensive review of the cocoa trade at the beginning of the twenty-first century, and the main factors that drive and affect that business Examines the history and origins of the international cocoa trade, and its recent developments featuring a discussion of environmental and practical factors affecting cocoa production Explores issues concerning the export and trading of physical cocoa, including the actuals market, the physical contracts used and the futures and options markets
Download or read book Bacterial Diversity in Sustainable Agriculture written by Dinesh K. Maheshwari and published by Springer. This book was released on 2014-09-04 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The earth’s biodiversity is a degree of ecosystem health which is vital to ecology and environmental sustainability. The microbial world is the largest unexplored reservoir. The agro-ecosystem enriched with rhizosphere implicit abundant and species-rich component of microbial diversity. Its global exploration designs a worldwide framework for agricultural sustainability adjoining benefits in its conservation. Agricultural sustainability requires a major share from ecosystem management which is better paid by microbial diversity and conservation. Diversity of bacteria influences plant productivity providing nutrient convenience from soil instead altering per se community and diversity in the rhizosphere where they may influence mechanistic competent and antagonistic micro-flora. The potential species among the diversity are therefore, essential subjective to their maintenance for use around the globe. Microbial population in agro-ecosystem is influenced by stresses, reduce functionality as a component. It is therefore, important to explore secrets of planned strategy so as to unravel the microbial diversity and conservation in agricultural development. Microorganisms are minute, pervasive in nature and alleged as disease host instead tiny recognize as employee of agro-ecosystem, indulge in agricultural development and potential contributor in world of ecological and economical wealth creation. This step pertinently would help to launch scientific motivation needed to support the refrain of microbial diversity and conservation.
Download or read book Crop Genetic Resources as a Global Commons written by Michael Halewood and published by Routledge. This book was released on 2013 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our food and livelihood security depend on the sustained management of the diverse biological resources that make up the Earth's plant genetic resources. This book is about the creation, management and use of the global crop commons, based upon the International Treaty on Plant Genetic Resources for Food and Agriculture.
Download or read book Tropical Mycology written by Roy Watling and published by CABI. This book was released on 2002-04-24 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical mycology is attracting increasing interest, as the key role of fungi in tropical ecosystems and as pathogens becomes appreciated. This book describes the ecology, biology, economic dimensions and systematics of tropical Micromycetes and is the second of two complementary volumes (Volume 1 covers Macromycetes) developed from papers given at the British Mycological Society's symposium held in Liverpool in April 2000.
Download or read book Creating iPhone Apps with Cocoa Touch The Mini Missing Manual written by Craig Hockenberry and published by "O'Reilly Media, Inc.". This book was released on 2010-05-19 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Creating iPhone Apps with Cocoa Touch: The Mini Missing Manual walks you through developing your first iPhone App and introduces you to your programming environments and tools: Cocoa Touch, Interface Builder, Xcode, and the Objective-C programming language. If you're a Java or C developer, this eBook is your fast track to App development. This eBook is adapted from parts of iPhone App Development: The Missing Manual.
Download or read book Plant Pathologist s Pocketbook written by J. M. Waller and published by CABI. This book was released on 2002 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: This essential handbook for student and practicing plant pathologists has been thoroughly reorganized and updated since the publication of the second edition in 1983. The new edition includes: rearrangement of topics to facilitate use; 49 short succinct chapters, each providing valuable practical information; new topics such as landmarks in plant pathology, survey of sampling procedures, disease evaluation, effects of climate change, biochemical and molecular techniques, epidemic modelling, breeding for resistance, laboratory safety and electronic databases; seven overall sections covering disease recognition and evaluation, causation, diagnosis, investigation, control, general techniques, and presentation of results.
Download or read book Agroforestry for Soil Management written by Anthony Young and published by Cabi. This book was released on 1997 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroforestry refers to land use systems in which trees or shrubs are grown in association with agricultural crops, or pastures and livestock. From its inception, it has contained a strong element of soil management. Well-designed and managed agroforestry systems have the potential to control run-off and erosion, maintain soil organic matter and physical properties, and promote nutrient cycling. By these means, agroforestry can make a major contribution to sustainable land use. The previous edition of this book, entitled Agroforestry for Soil Conservation (1989), was based on indirect evidence from agriculture, forestry and soil science. The present work provides a new synthesis, drawing on over 700 published sources dating largely from the 1990s. These include both results of field trials of agronomy systems, and research into the plant-soil processes which take place within them. Soil conservation in its narrower sense, the control of erosion, is treated alongside other equally important aspects of soil management, such as nutrient cycling. The new edition summarizes the present state of knowledge and indicates needs for research. It is essential reading for all concerned with agroforestry, whether as students, research scientists, or for practical purposes of development. It is also of interest to soil scientists, agronomists and foresters. Anthony Young was for nine years a Principal Scientist with the International Centre for Research in Agroforestry (ICRAF), Nairobi, Kenya. He was previously Professor of Environmental Sciences at the University of East Anglia, Norwich, UK, from which he received the degree of Doctor of Science. He was a joint author of the FAO standard texts on land evaluation and land use planning. Besides these, his other books include Soil Survey and Land Evaluation (1981) and Land Resources: Now and for the Future (1998). He is now Honorary Research Fellow in Environmental Sciences at the University of East Anglia.
Download or read book African Wildlife Livelihoods written by David Hulme and published by Heinemann Educational Books. This book was released on 2001 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essays on the policy, practice, and theory of community conservation in Africa.
Download or read book Tropical Agroecosystems written by John H. Vandermeer and published by CRC Press. This book was released on 2002-12-03 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical areas present ecological, cultural and political problems that demand analysis that is distinct from general ecological analysis. The tropical environment is special in many ways, from the lack of a biological down season (winter), to generally poor soil conditions, to a reliance on traditional methods of agriculture in an undeveloped soci
Download or read book Escoba de Bruja Del Cacao written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pandora s Box written by Andrew A. Adams and published by John Wiley & Sons. This book was released on 2008-01-29 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computing technology is constantly evolving and changing, developing and consolidating its position as a vital component of our lives. It no longer plays a minor part in society – it is embedded in, and affects, all aspects of life, from education to healthcare to war. Dealing with the implications of this is a major challenge, and one that can impact upon us, both personally and professionally. As a consequence, it is vital that all in the computing industry make wise decisions regarding their conduct. Using case studies and discussion topics drawn from entertaining real world examples, Pandora’s Box examines the background of a wide range of vital contemporary issues, encouraging readers to examine the social, legal and ethical challenges they will face in their own careers. Written in an engaging style and packed with international examples, this book addresses topics which have come to the forefront of public consciousness in recent years, such as online crime, piracy and peer to peer file sharing. Comprehensive coverage is provided of digital entertainment, censorship and privacy issues, presenting a rich source of context in which to consider ethical matters. Suitable for students on computer science degree programmes, as well as those taking IT related modules on other courses which consider the impact of technology on 21st century living, Pandora’s Box is an essential read and a unique and timely textbook.
Download or read book Shade Tree Pruning written by A. Robert Thompson and published by . This book was released on 1955 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
