The performance of irrigation schemes that carry sediment laden water is often poor. Modern irrigation schemes are increasingly demand based, which means that the water flow in the canals is determined by the crop water requirements. Accordingly the flow in the canal network is not constant as the crop water requirement changes with the climate and the growing stages. Also the inflow of the sediment is not constant throughout the irrigation season. Such schemes, particularly having unlined canals in alluvial soils, are difficult to design and to manage without compromising the flexibility or maintenance cost. This research has made an in-depth assessment on the role of sediment in the design and management of an irrigation scheme by using the data of Sunsari Morang Irrigation Scheme, Nepal. An analysis of the velocity and shear stress distribution across a non-wide trapezoidal canal has been made to derive the correction factor for the sediment transport predictors.

First published in 1988, this work provides a comprehensive picture of the range of physical environments in Africa, focusing upon those characteristics and issues central to the management of environmental resources. Beginning with an overview of the geographical and environmental history of Africa, the authors also provide to the evolution of the management of resources and then details a broadly defined ecosystem approach, in which major environmental resource issues are identified and addressed in the tropical rainforest, the Savannah dry-forest, the arid and semi-arid areas, the highlands, and the extra-tropical zones of Northern and Southern Africa. The book is designed to contribute to a better understanding of African environmental and resource-management problems and this reissue should be welcomed by students of Africa and of environmental resource management problems in general.

First published in 1976, this book deals with contemporary tensions between the West and the Third World, caused by hunger, malnutrition and poverty, perpetuated by an imbalance in the distribution of world resources. The book deals with the issue of malnutrition in the Third World, which owes much more to poverty and unemployment than to agricultural failure. The author also believes that population control can do little in the absence of a more equitable distribution of world resources and political power within and between countries involving a fundamental change in ideology and education. This is a challenging and critical book, whose arguments cannot be ignored by anyone concerned with the creation of a just and stable world order.

Grain legumes play significant and diverse role in the farming systems and provide nutrition security to the largely vegetarian and relatively poorer people around the world. These are ideal crops for achieving three simultaneous developmental goals viz. reducing poverty, improving human health and nutrition and enhancing ecosystem resilience. Globally, grain legumes are the second most important crop group next only to cereals but a large proportion of area of it is under rainfed-low input systems as compared to cereals contributing to lower yields. The other important factor responsible for reduced yield in grain legumes is the narrow genetic base of the present day pulse varieties. In order to break the yield barriers of these cultivars, new sources of genes/ alleles need to be identified and suitably incorporated into the adapted background. The information on various aspects of grain legume improvement although has been considerable in the recent past, these information are highly scattered and not available at one place. The present book consists of comprehensive and latest crop-wise information on important grain legumes of the world including their distribution, gene pool, systematics, status of genetic and genomic resources, production constraints, traits of importance, crop improvement methodologies - both conventional as well as contemporary and future strategies to be adopted for comprehensive grain legume improvement in various agro-ecological target areas of the globe. The chapters have been contributed by eminent crop experts from across the world engaged in research in their respective crops for the past several years thus providing a rare insight into the crop specific constraints and prospects drawing from their rich overall experience. The book therefore will be a useful source of information to the grain legume researchers, students, policy planners and developmental experts alike.

Plant tissue culture (PTC) is basic to all plant biotechnologies and is an exciting area of basic and applied sciences with considerable scope for further research. PTC is also the best approach to demonstrate the totipotency of plant cells, and to exploit it for numerous practical applications. It offers technologies for crop improvement (Haploid and Triploid production, In Vitro Fertilization, Hybrid Embryo Rescue, Variant Selection), clonal propagation (Micropropagation), virus elimination (Shoot Tip Culture), germplasm conservation, production of industrial phytochemicals, and regeneration of plants from genetically manipulated cells by recombinant DNA technology (Genetic Engineering) or cell fusion (Somatic Hybridization and Cybridization). Considerable work is being done to understand the physiology and genetics of in vitro embryogenesis and organogenesis using model systems, especially Arabidopsis and carrot, which is likely to enhance the efficiency of in vitro regeneration protocols. All these aspects are covered extensively in the present book. Since the first book on Plant Tissue Culture by Prof. P.R. White in 1943, several volumes describing different aspects of PTC have been published. Most of these are compilation of invited articles by different experts or proceedings of conferences. More recently, a number of books describing the Methods and Protocols for one or more techniques of PTC have been published which should serve as useful laboratory manuals. The impetus for writing this book was to make available a complete and up-to-date text covering all basic and applied aspects of PTC for the students and early-career researchers of plant sciences and plant / agricultural biotechnology. The book comprises of nineteen chapters profusely illustrated with self-explanatory illustrations. Most of the chapters include well-tested protocols and relevant media compositions that should be helpful in conducting laboratory experiments. For those interested in further details, Suggested Further Reading is given at the end of each chapter, and a Subject and Plant Index is provided at the end of the book.

This book sheds new light on the chickpea genome sequencing and resequencing of chickpea germplasm lines and provides insights into classical genetics, cytogenetics, and trait mapping. It also offers an overview of the latest advances in genome sequencing and analysis. The growing human population, rapid climate changes and limited amounts of arable land are creating substantial challenges in connection with the availability and affordability of nutritious food for smallholder farmers in developing countries. In this context, climate smart crops are essential to alleviating the hunger of the millions of poor and undernourished people living in developing countries. In addition to cereals, grain legumes are an integral part of the human diet and provide sustainable income for smallholder farmers in the arid and semi-arid regions of the world. Among grain legumes, the chickpea (Cicer arietinum) is the second most important in terms of production and productivity. Besides being a rich source of proteins, it can fix atmospheric nitrogen through symbiosis with rhizobia and increase the input of combined nitrogen. Several abiotic stresses like drought, heat, salinity, together with biotic stresses like Fusarium wilt, Ascochyta blight, and Botrytis grey mould have led to production losses, as the chickpeas is typically grown in the harsh climates of our planet's semi-arid regions.

- Provides an up to date and comprehensive introduction to forest policy and governance in the US - Written in an accessible and engaging tone, with a strong emphasis on real-world case studies - Appropriate for undergraduate and postgraduate students on forestry, natural resources and environmental governance courses, as well as professionals working in the forestry industry

First published in 1987, this volume was written to shed some light upon the nature and environmental consequences and wider relevance of development strategies in the Peoples? Republic of China. It covers industrialisation, food production, energy use and landscape and settlement planning.

The Chinese "autocentred" strategy is assessed from both the developmental and the environmental viewpoints. Decision-making processes and the opportunities to implement environmental policy in other parts of the developing world are analysed and the volume concludes with the view that benefits to other countries are likely to arise out of increased co-operation and exchange with China, although the Chinese model is by no means a panacea.

All students and researchers interested in either environmental or developmental issues will find this book to be a substantial and enlightening contribution to literature.

This book presents up-to-date information on foxtail millet genomics, with a particular focus on its agronomic importance, genome architecture, marker development, evolutionary and diversity studies, comparative genomics and stress biology. The topics discussed have the potential to open up a new era of crop improvement in foxtail millet and other related grass species. Foxtail millet (Setaria italica L.) is the oldest domesticated crop in the world (domesticated >8700 years ago) and it has been extensively grown in the semi-arid regions of Asia, Europe and the Americas as a food and fodder crop ever since. Further, as a C4 crop with close genetic relatedness to several biofuel grasses, foxtail millet has been promoted as a model plant. In view of its importance, the US Department of Energy Joint Genome Institute and Beijing Genomics Institute have independently sequenced the genome of foxtail millet. The availability of the draft genome sequence has advanced the genomics and genetics of this important crop, resulting in the development of large-scale genome-wide molecular markers and demonstration of their utility in genomics-assisted breeding, as well as the identification of the molecular and biological roles of several stress-responsive gene families in connection with abiotic stress tolerance. In addition, several open access databases have been developed to make these resources for crop improvement through structural and functional genomics widely available.

A compendium on physical properties and conditioning requirements of some seed kinds Little public information exists on the physical properties and conditioning requirements of seed. For many crop seeds, the only information that exists is in companies who produce, clean, and handle seed. This manual provides as much available information as possible, assisting those already in the business as well as newcomers to the field. The book presents the physical characteristics and conditioning needs of seed. Readers can use the record formats provided to build their own records of what worked so as to remove specific contaminants from their crop seed. This information will enable them to save time, shrink conditioning costs, and reduce seed losses.

The Encyclopedia of Biotechnology in Agriculture and Food provides users with unprecedented access to nearly 200 entries that cover the entire food system, describing the concepts and processes that are used in the production of raw agricultural materials and food product manufacturing. So that users can locate the information they need quickly without having to flip through pages and pages of content, the encyclopedia avoids unnecessary complication by presenting information in short, accessible overviews.

Addresses Environmental Issues & Sustainability in the Context of 21st Century Challenges

Edited by a respected team of biotechnology experts, this unrivaled resource includes descriptions and interpretations of molecular biology research, including topics on the science associated with the cloning of animals, the genetic modification of plants, and the enhanced quality of foods. It discusses current and future applications of molecular biology, with contributions on disease resistance in animals, drought-resistant plants, and improved health of consumers via nutritionally enhanced foods.

Uses Illustrations to Communicate Essential Concepts & Visually Enhance the Text

This one-of-a-kind periodical examines regulation associated with biotechnology applications?with specific attention to genetically modified organisms?regulation differences in various countries, and biotechnology's impact on the evolution of new applications. The encyclopedia also looks at how biotechnology is covered in the media, as well as the biotechnology/environment interface and consumer acceptance of the products of biotechnology. Rounding out its solid coverage, the encyclopedia discusses the benefits and concerns about biotechnology in the context of risk assessment, food security, and genetic diversity.

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For more information, visit Taylor & Francis Online or contact us to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367 / (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062 / (E-mail) [email protected] Dennis R. Heldman speaks about his work on the CRC Press YouTube Channel.

This book discusses the history of environmental science and climate change, and the initiation and development of different parameters determining climate changes. The account of the history of such changes and turmoil in India and abroad starts in the prehistoric period, long before the emergence of "Rigveda", the first human written work. The book describes the writings of Aristotle and Theophrastus on climatic disasters and their impact on the vegetation and society in Greek and Roman history, and addresses different studies related to climate change during the prehistoric period and their chronological development. The first book of its kind, it enhances our understanding the origin of research on climate change and climate related problems, and as such is a valuable resource for postgraduate students of agriculture and environment sciences, research scholars, scientists, environmentalists and policy planners.

- This text provides unique perspective on the historical social, political, and economic factors that created the current, flawed industrial agricultural system, providing justification for the proposed philosophy of mycoagroecology. - Nine introductory chapters equip readers of diverse backgrounds with the broad knowledge required to start implementing mycoagroecology. - All concepts are considered through a lens of sustainable management, encouraging the multifaceted approach needed to manage future agroecosystems. - This multidisciplinary text includes chapters contributed by experts from several fields, including forest ecology, horticultural science, mycology, pest management, and plant pathology. - The text incorporates issues, examples, and techniques from all over the world and includes techniques for both industrial and small-scale farming, encouraging international adoption of mycoagroecology. - Key terms are defined in-text and the language is approachable to include readers who speak English as a secondary academic language.

'frees contribute a major part of fuel, fodder and fruit, and are an im of bioenergy. They are now needed in large numbers more portant source than ever before for afforestation and social forestry, so that fast-grow ing and multipurpose trees assume great importance. After extensive in discriminate deforestation and rapid depletion of genetic stocks, efforts are now being made to evolve methods for clonal mass propagation of improved and elite trees. Production of short-duration trees with a rapid turnover of biomass, and induction of genetic variability through in vitro manipulation for the production of novel fruit and forest trees, which are high-yielding and resistant to pests and diseases, and trees which display increased photosynthetic efficiency are in demand. These objectives are well within the realm of horticultural and forest biotech nology. Some of the recent advances, such as the regeneration of com plete trees from isolated protoplasts, somatic hybridization, and the Agrobacterium-mediated transformation in various tree species have opened new vistas for the genetic engineering of fruit and forest trees. This book is a continuation of the earlier volume Trees I, and presents 31 chapters on fruit, forest, nut and ornamental trees, such as avocado, pineapple, crabapple, quince, pistachio, walnut, hazelnut, date palm, oil palm, cacao, rubber, maple, sweet-gum, poplars, birches, Chinese tallow, willows, oaks, paper mulberry, rhododendrons, Scots pine, Calabrian pine, Douglas-fir, redwood, ginkgo, cycads and some flowering trees."

Maize is a globally important crop mainly utilized as feed, food and raw material for diverse industrial applications. Among cereals, it occupies third place after rice and wheat and is a staple food for a large segment of population worldwide particularly in the Asian as well as African countries. This monogram discusses various aspects of nutritional quality of maize such as quality protein maize which has been considered as most significant discovery in enhancing nutritional quality of cereals in terms of increasing the concentration of essential amino acids. The biochemistry of starch which is an important industrial product of maize has been discussed in detail. Further, the role of maize oil which is highly regarded for human consumption as it reduces the blood cholesterol concentration has also been elaborated. Naturally, maize is a rich source of carotenoids such as beta-carotene, zeaxanthin, lutein, cryptoxanthin which have highly diverse health benefits ranging from maintaining normal vision to lowering of oxidative stress. The need for biofortification of maize for provitamin A carotenoids and their role in alleviating vision impairments have also been discussed. The effect of various biotic and abiotic stresses particularly carbon dioxide and temperature on quality has been discussed thoroughly. Many value-added products as well as fermented foods that have been produced from maize which is consumed in different forms worldwide are also discussed. The aspects related to the maize application as fodder and as a source of malting have also been covered concisely. Overall, the book provides complete information about various quality aspects of maize. The various stakeholders such as maize researchers, extension specialists, students, teachers as well as farmers will be immensely benefitted from this monogram.

Significant reduction of local, regional, national and international greenhouse gas emissions in homes, businesses, industries and communities has become an international priority. This book describes in clear, concise, and understandable terms the nature and scope of the climate change problem. The authors combine their considerable expertise to offer guidelines for defining and applying effective carbon reduction policies, strategies, and technologies. They propose a well-defined road map which can be implemented to help control and abate the alarming increases in carbon dioxide and other greenhouse gas emissions.

The changing climate, the warming of the world and acid rain are among the greatest problems facing us at the end of the twentieth century. This book describes, for the first time, the effects of these phenomena on the high mountains and the forests of Europe. Mountains and the frozen regions (the cryosphere) not only play a major part in our climatic system, but are also central to our water supplies. Yet our glaciers are shrinking, our lakes and soils are becoming acidified, our forests are damaged and the whole fragile ecosystem of ranges like the Alps and the Caucasus is threatened. Nilsson and Pitt present the evidence and assess the probable effects of these changes on mountain society, tourism, water, flora and fauna. They also examine the uncertainties. Above all they look, too, at the best possible strategies in response to What is happening and at what the next steps should be. Originally published in 1991

The destruction of the tropical forest is one of the major problems of our time. Vast areas are rapidly becoming wastelands which support only a few tough weeds, perhaps some cattle, and the farms allowed to the poor. This book provides a vision of hope: in Latin America. Africa. And South East Asia, growing numbers of people are developing techniques specifically designed to promote the wise use and preservation of remaining forest lands. However, these grassroots strategies are often ignored in favour of grandiose schemes which inevitably fail. This pattern must be broken now or the tropical forests will be lost forever. Published in association with the Smithsonian Institution. Preface by Michael Robinson, Director, National Zoological Park. Smithsonian Institution Originally published in 1988

The economic value of forest. has long been recognized, but the ways in which that value is calculated and the management policies adopted in consequence have all too often resulted in overuse and irreversible destruction. This is spectacularly obvious around the Mediterranean basin, but it is also true in northern Europe. These five case studies, commissioned by the OECD, examine failures of forest management in Britain, Spain, Italy, Germany and Sweden. They look at both market and intervention policies and show how each can further the destruction of the forests, and they set out ways in which future policies can evade the mistakes of the past. Originally published in 1992

Tomatoes could not be grown commercially without the help of their wild relatives. A single wild species of rice has helped double rice production in Asia. Wild silk-worms are enabling India to expand its silk industry. A wild carp with resistance to cold has been used to extend Soviet carp production further into the north. Wild genetic resources - the heritable characteristics of wild plants and animals - are used increasingly to improve domesticated crops and livestock and as new sources of food and of raw materials. But habitat destruction, over-exploitation and competition from introduced species is destroying many gene pools even before they have been identified. Genes from the Wild describes the growing contribution of wild genetic resources to the production of food and raw materials, describes their characteristics, explains the benefits and problems of using them and outlines the ways in which they are threatened and the measures being taken to conserve them. Originally published in 1988

The need to produce food without the destructive chemical horrors of much modern farming, for an intelligent use of dwindling natural resources and for humane forms of production is universal, the practice is limited. This book is an account of one, large, instance of success in practice. Twenty-five years ago, Winin Pereira, a nuclear physicist abandoned academia to start a co-operative farm at Alonde in a tribal area north of Bombay. The group experienced, and finally discarded, all the false hopes and promises of Western originated forms of development: ploughs that ploughed too deep, irrigation systems that lowered water tables, fertilizers and pesticides which managed the earth and became so expensive that poorer farmers were dispossessed. Instead they learnt from the adivasai, or tribal people, who have nurtured or been nurtured by foresets for millennia, ways of applying popular knowledge to contemporary problems. This book is a combination of Pereira's record of achievement of sustainable livelihoods and an account of the farm and its effect on the India around it by a leading British journalist. Originally published in 1991

This text provides a critique of the causes and consequences of the modern agricultural revolution, since the agricultural depression of the inter-war period. This includes evaluating the impact of the Second World War, the post-war scientific and technological revolutions and the metamorphosis in the role of the state. It also examines the impact of the Common Agricultural Policy and the more recent attempts to rationalize production. The book provides the background for an objective appreciation of modern agricultural development.

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.

While working in the laboratory of Professor Dr. Jacob Reinert at the Freie Universitat Berlin (1974-1976), I had the opportunity to become deeply involved in studying the intricacies of the fascinating phenomenon of somatic embryogenesis in plant cells and protoplasts. In numerous stimu lating discussions with Professor Reinert on this subject, I was fully convinced that somatic embryogenesis would become one of the most important areas of study, not only regarding basic and fundamental aspects, but also for its application in crop improvement. During the last decade, we have witnessed tremendous interest and achievements in the use of somatic embryos for the production of synthetic seeds, for micro propagation, genetic transformation, cryopreservation, and conservation of germplasm. The en masse production of somatic embryos in the bioreactors has facilitated some of these studies. Somatic embryos have now been induced in more than 300 plant species belonging to a wide range offamilies. It was therefore felt that a compilation ofliterature/state of the art on this subject was necessary. Thus, two volumes on Somatic Embryo genesis and Synthetic Seed have been compiled, which contain 65 chapters contributed by International experts. Somatic Embryogenesis and Synthetic Seed I comprises 31 chapters, arranged in 3 sections: Section I Commitment of the cell to somatic embryogenesis; early events; anatomy; molecular basis; gene expression; role of polyamines; machine vision analysis of somatic embryos. Section II Applications of somatic embryos; technology of synthetic seed; fluid drilling; micropropagation; genetic transfor mation through somatic embryos; cryopreservation.

This book analyses the performance and potential of India's oilseed sector, identifies the major constraints facing the industry and suggests options for increasing the country's oilseed production and productivity, taking into account the changing policy environment, increasing demand, slow growth in domestic production and rising imports. India as the world's largest producer of oilseeds, accounts for about 7-8 per cent of global vegetable oil production. However, the growth in domestic production has not kept pace with the growth in demand. Low yields and high production and market risks due to lack of irrigation facilities and effective risk management have been responsible for widening the demand-supply gap over the years, and the country now imports more than half of its oilseed for domestic consumption. The Technology Mission on Oilseeds (TMO), launched in the mid-1980s, helped achieve self-sufficiency in edible oil production through the spread of technology and the provision of market support. However, increasing demand for edible oils necessitated imports in large quantities, leading to a substantial drain on foreign exchange. Given the competing demands on agricultural land from various crops and enterprises, the production of oilseeds can be increased only if productivity is improved significantly and farmers receive remunerative prices and have assured market access. However, farmers face various constraints in oilseed production; several biotic, abiotic, technological, institutional and socio-economic constraints inhibit exploitation of the full yield potential of crops, which need to be addressed. The book explores these issues using data collected from about 2,000 oilseed growers: 490 soybean farmers, 316 rapeseed-mustard growers, 470 groundnut farmers, 250 sesamum farmers and 470 sunflower growers from selected Indian states. It would be of immense use for scholars and policy makers alike who are working in this field.