This book is the self-contained fourth volume of a seven-volume comprehensive series on nitrogen fixation. The outstanding aspect of this book is the integration of basic and applied work on biological nitrogen fixation in the fields of agriculture, forestry, and ecology in general. Nowadays, the concept of sustainability, which originated in agriculture and land use, is reaching many other areas of society and industry. Sustainability has a major part to play in the global challenge of continued development of regions, countries, and continents all around the World and biological nitrogen fixation has a key role in this process. This volume begins with chapters specifically addressing crops of major global importance, such as soybeans, rice, and sugar cane. It continues with a second important focus, agroforestry, and describes the use and promise of both legume trees with their rhizobial symbionts and other nitrogen-fixing trees with their actinorhizal colonization. An over-arching theme of all chapters is the interaction of the plants and trees with microbes and this theme allows other aspects of soil microbiology, such as interactions with arbuscular mycorrhizal fungi and the impact of soil-stress factors on biological nitrogen fixation, to be addressed. Furthermore, a link to basic science occurs through the inclusion of chapters describing the biogeochemically important nitrogen cycle and its key relationships among nitrogen fixation, nitrification, and denitrification. The volume then provides an up-to-date view of the production of microbial inocula, especially those for legume crops. No other available work provides the up-to-date and in-depth coverage of this volume, whichis intended to serve as an indispensable reference work for academic, government, and industrial scientists working in the applied areas of agronomy, plant breeding, plant nutrition, ecology, and forestry as well as those in the basic science areas of plant physiology, soil microbiology, and related environmental disciplines. This volume will be an invaluable tool for students entering this challenging area of research and will provide science administrators with ready access to vital relevant information.

This new volume emphasizes the drastic quantitative and qualitative transformation of our surrounding environment and looks at bioresource management and the tools needed to manageenvironmental stresses. This unique compilation and interpretation of concrete scientific ventures undertaken by environmental specialists at the global level explores research dedicated to the management of natural resources by controlling biotic and abiotic factors that make the earth vulnerable to these stresses. The chapter authors look at all types of bioresources on earth and their management at times of stress/crisis, focusing on the need for documentation, validation, and recovery of ethnic indigenous knowledge and practices that could have great impact in stress management. The book looks at topics in nature and changing climate management, adaptation, and mitigation, such as the effects of climate change on agriculture and horticulture, on timber harvesting, and on forest resources. Also specifically discussed are crop resources management, seed crops, tree seedlings, soil management, and conservation practices. The volume also includes chapters on animal resources management.

This is the first manual presenting a set of protocols for production of doubled haploids (DH) in 22 major crop plant species including 4 tree species. It contains various protocols and approaches of DH production proven for different germplasm of the same species. The protocols describe in detail all steps of DH production - from donor plants growth conditions, through in vitro procedures, media composition and preparation, to regeneration of haploid plants and chromosome doubling methods. The users of this manual will be able to choose among microspore versus anther cultures, wide hybridisation or gynogenesis, the most suitable method for production of DH in particular laboratory conditions for their plant material. Numerous colour illustrations should help in this decision. The user will also find information on organization of a doubled haploid laboratory, basic DH media and on associated simple cytogenetic methods for ploidy level analysis. The practical protocols are supplemented with the list of published DH protocols for other crop plants and separate chapters dealing with major applications of DH in breeding, mutant production, transgenesis, and genetic mapping and genomics.
The book was prepared by the Plant Breeding and Genetics Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture in close co-operation with the EU program COST 851' on Gametic cells and molecular breeding for crop improvement'.

We hear a lot about how agriculture affects climate change and other environmental issues, but we hear little about how these issues affect agriculture. When we look at both sides of the issues, we can develop better solutions for sustainable agriculture without adversely affecting the environment. Agroecology, Ecosystems, and Sustainability explores a modern vision of ecology and agricultural systems, so that crop production can be sustainably developed without further environmental degradation. With contributions from experts from more than 20 countries, the book describes how to make the transition to modern agroecology to help the environment. It examines the global availability of natural resources and how agroecology could allow the world population to reach the goal of global sustainable ecological, agricultural, and food production systems. The book discusses important principles that regulate agroecological systems, including crop production, soil management, and environment preservation. Making the link between theory and practices, the book includes examples of agroecology such as an interdisciplinary framework for the management of integrated production and conservation landscapes and the use of mechanized rain-fed farming and its ecological impact on drylands. An examination of how ecology and agriculture can be allied to ensure food production and security without threatening our environment, the text shows you how natural resources can be used in a manner to create a "symbiosis" to preserve ecological systems and develop agriculture.

The semiarid plains of western Kansas and eastern Colorado are hardly the setting for an agricultural empire, but it was here that former field hand John Kriss managed G-K Farms for Wichita entrepreneur Ray Garvey. Their enterprise became one of the largest wheat operations on the plains and yielded Kriss a one million bushel crop.

"Harvesting the High Plains" is the rags-to-riches story of how Kriss applied hard work and common sense to make large-scale farming work under the most adverse conditions. Drawing on correspondence between Kriss and Garvey, it tells how the two men had to make innumerable decisions about the purchase of expensive machinery and of ever larger tracts of land, and how Kriss kept detailed records of crops and rainfall to manage the land carefully, farming thousands of acres in an environmentally sensitive way and retaining a viable operation even during the Dust Bowl years.

In chronicling the story of Kriss's success, historian Craig Miner provides a bold counterpoint to the argument that large, technology-based farming is inherently bad or that only small farmers can be conscientious stewards of the land. He sets his narrative in the context of local and agricultural history-as well as the Kriss family's own story-in order to document the transition to mechanized, specialized farming on the plains. He addresses philosophical and historical questions about the relation between agriculture and nature in a semiarid region, showing that G-K Farms managed to strike a remarkable balance between profit and ecology. He also suggests that G-K may even have done its region more economic good than small farms simply by staying in business during bad times.

The Kriss family still works the land, and although their operation is huge, it still depends on traditional family farming values and approaches. Harvesting the High Plains provides keen insights into their special approach to large-scale farming and gives a human face to the faceless statistics of other agricultural studies.

Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myriad of subject matter dealt with by this long-running serial.

Peanut, an amphidiploid, is an important food and oil crop and has an interesting evolutionary history. This book provides a glimpse of the advances in genetic resources and genomics research of peanut made during the last decade. It contains an overview of germplasm, advances in genetic and genomic resources, genetic and trait mapping, proteomic and transcriptomic analyses, functional and comparative genomics studies, and molecular breeding applications. This book should prove useful to students, teachers, and young researchers as a ready reference to the latest information on peanut genetics and genomics.

This book evaluates maize as a bioenergy fuel source from two perspectives. It explores whether the input energy needed to generate fuel significantly exceeded by the energy harvested. In examining this issue, the chapters provide assessments of the social, economic, and political impact on fuel pricing, food costs, and the environmental challenge with corn biomass the engine of change. It then examines whether corn be genetically improved so that its biomass is significantly increased, its cellulose-lignin complex made more amenable to harvesting and to processing, and grown in regions not normally associated with its cultivation of food.

The study of soil nitrogen has long been an active field, but it was generally pivoted on agricultural and forestry production, and animal husbandry. With the rapid increase in the use of fertilizer nitrogen, more attention has been paid to the relationship between nitrogen management and environmental quality and human health. In addition, the study of soil nitrogen has become more comprehensive with the development of related sciences. The quantitative study of the processes of nitrogen cycling and their interrelationships has been an important part of this project and has attracted the attention of scientists all over the world. Nitrogen is one of the most important nutrients for plant growth and the application of fertilizer nitrogen is playing an important role in agricultural production. The annual consumption of fertilizer nitrogen in the world has reached 70 million tons, and China has an annual consumption of more than 15 million tons and is the largest fertilizer nitrogen consumer in the world. However, the efficiency of fertilizer nitrogen is low and losses are large. It is estimated that nitrogen losses from agriculture in China can be as high as 40-60% of the nitrogen applied. Some of the lost nitrogen enters the atmosphere and contributes to the greenhouse effect and some enters water bodies to pollute the water. Consequently, it is important for scientists all over the world to improve the efficiency of use of fertilizer nitrogen, to promote the biological fixation of nitrogen and to increase the nitrogen-supplying potential of soils.

Lessons learned in Latin America is about the use and dissemination of cover crops in different agroecosystems need to be made more widely available not only to Spanish speaking, but also Anglophone regions. This publication aims to inform a wide range of actors involved in rural development projects, as well as those in applied research, of the potential of cover crops as components of low external input agricultural (LEIA) systems.Cover Crops are, or have the potential to be, an important component in complex, diverse, risk-prone and resource poor farming situations.The publication includes selected case studies from four different countries within Latin America. These address key issues regarding crop cover integration in LEIA systems. A wide range of agroecosystems are covered by the case studies, so that the information can be adapted for use in other regions. The key issues covered by the case studies are the following: Cover crops in annual cropping systems (Honduras), Cover crops in Perennial crops (Bolivia), Role of cover crops in animal husbandry (Mexico), Cover crop systems - Soil improvement and conservation (Honduras), Alternatives to slash-and-burn (Mexico), Diffusion aspects of cover crop based systems, Applied research activities for agricultural systems improvement (Bolivia), Action research with campesino farmers in South-East Mexico.

The dependence of present farming on artificial input of "chemical fertilizers" has caused numerous ecological tribulations associated with global warming and soil contamination. Moreover, there is an essential requirement for realistic agricultural practices on a comprehensive level. Accordingly, biofertilizers including microbes have been recommended as feasible environmentally sound solutions for agricultural practices which not only are natural, and cost-effective but also preserve soil environs and important biota of agricultural land. In addition, it enhances the nutrient quantity of soils organically. Microbial biofertilizers promote plant growth by escalating proficient absorption of nutrients for the plants and by providing an excellent disease-fighting mechanism.Agriculture, the backbone of human sustenance, has been put under tremendous pressure by the ever-increasing human population. Although various modern agro-techniques boosted agricultural production, the excessive use of synthetic fertilizers, pesticides and herbicides have proven extremely detrimental to agriculture as well as to the environment in which it is carried out. Besides this some faulty agricultural practices like monoculture and defective irrigation, further complicate the scenario by eliminating biodiversity, increasing the efflux of nutrients into the water bodies, the formation of algal blooms, eutrophication, damaging the water quality and lowering fish stocks. Biofertilizers are the organic compounds applied to crops for their sustainable growth and the sustainability of the environment as the microbiota associated with biofertilizers interact with the soil, roots and seeds to enhance soil fertility. Application of biofertilizers results in the increased mineral and water uptake, root development, vegetative growth and nitrogen fixation besides liberating growth-promoting substances and minerals that help the maintenance of soil fertility. They further act as antagonists and play a pivotal role in neutralising soil-borne plant pathogens and thus, help in the bio-control of diseases. Application of biofertilizers instead of synthetic fertilizers could be a promising technique to raise agricultural productivity without degrading environmental quality. The present book focuses on the latest research approaches and updates from the microbiota and their applications in the agriculture industry. We believe this book addresses various challenges and shed lights on the possible future of the sustainable agricultural system.

The Boron '97 meeting was a great success in summarising all recent developments in basic and applied research on boron's function, especially in plants. New techniques have since been developed and new insight has been gained into the role of boron in plant and animal metabolism. Nevertheless, there were still lots of open questions. The aim of the present workshop held in Bonn as a satellite meeting to the International Plant Nutrition Colloquium was thus to gather all actual information which has been gained since the Boron '97 meeting and to compile knowledge, both from animal and plant sciences. Furthermore, applied aspects had to be addressed too, as there is an increasing awareness of boron deficiencies even in crops such as wheat, which have formerly not been considered as responsive to boron application. Genetic differences in boron demand and efficiency within one species are a further important topic which has gained importance since the 1997 meeting. More in-depth knowledge on the mechanisms of boron efficiency are required as an increased efficiency will be one major possibility to maintain and improve crop yields for resource-poor farmers. Nevertheless, it has also clearly been shown that an adequate supply of boron is needed to obtain high yields of crops with a high quality, and that a sustainable agriculture has to provide an adequate boron supply to compensate for inevitable losses through leaching (especially in the humid tropics and temperate regions) and for the boron removal by the crop.

In Calabria, Italy, where bergamot has been successfully cultivated since the eighteenth century, it is commonly defined as "the prince of the Citrus genus." Written by an international panel of experts from multiple disciplines, Citrus bergamia: Bergamot and its Derivatives represents the most complete treatise on bergamot and its derivatives currently available.

Although production of bergamot and its derivatives is comparatively small, its chemical composition and biological properties have been of great scientific interest and the oil is considered essential in many high-quality perfumes. There is also an increased demand for bergamot oil for food flavorings and gastronomy. A tribute to bergamot, Citrus bergamia: Bergamot and its Derivatives covers all aspects of bergamot, from its historical and botanical origins, cultural practices, and transformation technologies to the use of its derivatives, possible contaminations, and biological activity.
The book examines the chemical composition of bergamot in peel oils, leaf oils, juice, and fruits, extracted by various techniques mechanical, distillation, and by supercritical fluids. It covers newly identified classes of compounds, limonoids and statins, describing the identification and assay of natural statins and the pharmacological activities of limonoids. It also discusses bergapten properties and its uses in cosmetics and medicine, as well as the use of bergamot in perfumery and in foods and beverages. The book concludes with a chapter reviewing the available data and global legislative status of bergamot as they relate to the safe use and trade of bergamot products.

The third most important cereal crop after wheat and corn, rice is a staple food for more than half of the world's population. This includes regions of high population density and rapid growth, indicating that rice will continue to be a major food crop in the next century. Mineral Nutrition of Rice brings together a wealth of information on the ecophysiology and nutrient requirements of rice. Compiling the latest scientific research, the book explains how to manage essential nutrients to maximize rice yield. The book examines 15 essential or beneficial nutrients used in irrigated, upland, and floating rice across a range of geographic regions. For each mineral, the text details the cycle in the soil-plant system as well as the mineral's functions, deficiency symptoms, uptake in plants, harvest index, and use efficiency. It then outlines management practices, covering application methods and timing, adequate rates, the use of efficient genotypes, and more. The author, an internationally recognized expert in mineral nutrition for crop plants, also proposes recommendations for the judicious use of fertilizers to reduce the cost of crop production and the risk of environmental pollution. Color photographs help readers identify nutrient deficiency symptoms and take the necessary corrective measures. Packed with useful tables and illustrations, this comprehensive reference guides readers who want to know how to increase rice yield, reduce production costs, and avoid environmental pollution from fertilizers. It offers practical information for those working in agricultural research fields, in laboratories, and in classrooms around the world.

Plant nutrition in greenhouse cultivation differs in many essential aspects from field crops and justified the development of a special publication on this subject. The high productions realised and the specific produce quality requirements ensure high uptakes of nutrients and a careful tuning of the application. The covering with glass or plastic is responsible for specific climatic conditions, which in modern greenhouse can be fully adjusted to the requirements of the crop by automatic climate control. The natural precipitation is excluded, thus, the water has to be applied in greenhouses by artificial irrigation of water from different origin. On thing and another involves that the growing conditions are more or less completely controlled. This especially holds when the crops are grown in substrates.The high uptake of minerals in greenhouses requires high fertilizer additions. The quantities absorbed by many crops are that high, that it is impossible to supply the required quantities of nutrients as a base dressing at once. Therefore, top dressings are common practice and are carried out together with the supply of the irrigation water. Therefore, fertigation is common practice and in greenhouses already for many years. Specific systems have been developed for the application of the right concentrations to keep the level of nutrients in the root environment on the optimum level for the performance of the crop.Beside the management of the nutrient application, greenhouse growers also need a close control on the salt accumulation. This accumulation is closely connected with the quality of the irrigation water. Moreover, also the addition of the fertilizers plays a role in the salt accumulation in the root environment. Therefore, choice of the fertilizers used is important to prevent accumulations of residual salts possibly supplied with the fertilizers. On the other hand, for a number of crops the level of fertilizer supply is not only focussed on the nutrient requirements, but also utilized to realize a certain salt concentration in the irrigation water. In this way the osmotic potential of the soil solution is affected and this characteristic is an important tool for the grower for the regulation of the growth of the crop and the quality of the produce. When the salinity passes certain threshold values, the growth and production of crops is reduced, but the quality of the harvested produce of some crops is improved. Such regulations are very precisely adjusted to the crops grown and to the growing conditions in the greenhouse. Another line is the development of sustainable production methods. For the main subject discussed in this book, namely plant nutrition, methods for an optimum use of fertilizers with a minimum environmental pollution were developed last decennia. In this field the development of the cultivation in substrates offered excellent possibilities for an optimal use of water and nutrients. With this growing method it has been proved that it is possible to grow greenhouse crops without any discharge of minerals to the environment. The conditions required for such cultivation are thoroughly discussed. Moreover, growing in substrates offers suitable opportunities for optimization of yield and quality, because of the adequate control on the conditions in the root environment, like the supply of water and nutrients. However, this requires a perfect management of water and nutrient supply. Not only for the fact that plants are grown in very small rooting volumes and therefore, mistakes with irrigation and fertilizer supply easily will damage the crop, but also for the fact that the fertilizer supply is complicated. For substrate growing it is not enough that some nutrient elements are controlled, like with soil grown crops, but the full packet of nutrients essential for plant growth will be kept in view. This means that the addition of six macro nutrients and at least six micro nutrients will be regulated, with respect to the right concentration and mutual ratios in the irrigation water. Physical and chemical properties of substrates essentially differ and a right use of these properties is necessary for a right interpretation of the nutrient and salinity status. To this purpose the grower is supplied with detailed recommendations developed by the research stations founded in The Netherlands. The horticultural research stations in The Netherlands developed numerous tools to the growers often in cooperation with the horticultural industries and laboratories. An example of such cooperation is the development of soil and substrate testing methods by the research stations. These methods offered excellent possibilities for a frequent control for the salt and nutrient status in the root environment. Together with these methods schedules for interpretation and recommendation were developed and adjusted for computerized information to the growers.
The book contains information about soil testing methods, in relation to a universal interpretation based on the composition of soil solution. Methods for interpretations of tissue tests are supplied. Crop response on salinity and water supply is discussed in relation to fertilizer application. The management of fertilizer addition in relation to analytical data of soil and substrate samples is presented for a wide range of crops grown in greenhouses. The specific requirements in relation with the climatic conditions and the crop grown are discussed.
The management as described is especially focussed on a sustainable production of vegetable and ornamental crops. The water supply, fertilization and the realisation of the osmotic potential in the root environment is focussed on the production of the high quality products required on the consumer market as appeared last decennia in the Western world. Such a market is characterized by diversity, quality and immediate answers to demands of luxurious productions. Greenhouse production

Currently 868 million people are undernourished and 195 million children under five years of age are stunted. At the same time, over 1 billion people are overweight and obese in both the developed and developing world. Diseases previously associated with affluence, such as cancer, diabetes and cardio-vascular disease, are on the rise. Food system-based approaches to addressing these problems that could enhance food availability and diet quality through local production and agricultural biodiversity often fall outside the traditional scope of nutrition, and have been under-researched. As a consequence, there remains insufficient evidence to support well-defined, scalable agricultural biodiversity interventions that can be linked to improvements in nutrition outcomes. Agricultural biodiversity is important for food and nutritional security, as a safeguard against hunger, a source of nutrients for improved dietary diversity and quality, and strengthening local food systems and environmental sustainability. This book explores the current state of knowledge on the role of agricultural biodiversity in improving diets, nutrition and food security. Using examples and case studies from around the globe, the book explores current strategies for improving nutrition and diets and identifies key research and implementation gaps that need to be addressed to successfully promote the better use of agricultural biodiversity for rural and urban populations and societies in transition.

Currently 868 million people are undernourished and 195 million children under five years of age are stunted. At the same time, over 1 billion people are overweight and obese in both the developed and developing world. Diseases previously associated with affluence, such as cancer, diabetes and cardio-vascular disease, are on the rise. Food system-based approaches to addressing these problems that could enhance food availability and diet quality through local production and agricultural biodiversity often fall outside the traditional scope of nutrition, and have been under-researched. As a consequence, there remains insufficient evidence to support well-defined, scalable agricultural biodiversity interventions that can be linked to improvements in nutrition outcomes. Agricultural biodiversity is important for food and nutritional security, as a safeguard against hunger, a source of nutrients for improved dietary diversity and quality, and strengthening local food systems and environmental sustainability. This book explores the current state of knowledge on the role of agricultural biodiversity in improving diets, nutrition and food security. Using examples and case studies from around the globe, the book explores current strategies for improving nutrition and diets and identifies key research and implementation gaps that need to be addressed to successfully promote the better use of agricultural biodiversity for rural and urban populations and societies in transition.

Demonstrates the intimate relationship between biological diversity and cultural diversity. The 15 contributors look at experimentation using crops such as rice, maize, beans and root crops, illustrated by case studies from India, Nepal and Nigeria among others. There are also studies of water harvesting in the Sudan and of the home gardens in South India.;The findings of this study show: farmers do experiment; farmers know their local environments intimately, and their experiments are usually site-specific; farmers have a close and detailed knowledge of local cultivators, and are well aware of the need to promote biological diversity; the experiments underlie the imporatnce of "in situ" conservation, including the protection of wild plants; and any attempts of local conservation of natural resources should involve the local inhabitants.;This collection emphasizes the importance of cultural factors and will contribute to the debate about biological diversity.

Modern Coconut Management is aimed at guiding those who work with small-scale farmers and farmer groups through the complex area of coconut management. It will also be of value to the many processors and others, whose livelihoods depend on coconuts. The emphasis is on the need for training and education of coconut smallholders in how to become good managers, using appropriate techniques and materials. The book combines a wealth of information that exists in this area with new research on diseases and pests and breeding techniques to improve crop performance. The book also deals with coconut based farming systems in which many aspects of the combination of coconuts with other crops and/or animals are discussed. Equally important are processing techniques which are vital to the survival of the coconut industry. There is a section of the book devoted to post-harvest treatment, processing and research where the many new developments in the processing of coconut products are discussed. This book will serve as a valuable reference tool to trainers and agencies working with coconut smallholders, as well as those involved with the processing of coconuts and products.

In the developing world, day to day crop management is often women's work. Yet women's interest and knowledge are often ignored. In addition to empowerment, involving women can provide significant support to crop protection programmes. This book addresses many aspects of plant protection. Most chapters, however, relate to integrated pest management (IPM). Practical lessons on women's roles in crop protection and ways to increase access to information and training are evident. Contributions come from Bhutan, Vietnam, Indonesia, Russia, Costa Rica, Honduras, Tanzania, and Ghana.

This book addresses the impact of important climatic changes on plant pests (including weeds, diseases and insect pests), and their interactions with crop plants. Anthropogenic activities have seriously impacted the global climate. As a result, carbon dioxide (CO2) and temperature levels of the earth are on a continuous rise. The global temperature is expected to increase by a 3 DegreesC or more by the end of this century. The CO2 concentration was below 300 parts per million (ppm) before the start of the industrial era; however, recently it has exceeded 400 ppm. This is highest ever in human history. Other than global warming and elevated CO2 concentrations, anthropogenic activities have also disturbed the global water cycle, ultimately, impacting the quantity and distribution of rainfall. This has resulted in drought conditions in many parts of the world. Global warming, elevated CO2 concentration and drought are considered the most important recent climatic changes that are impacting global ecosystems and human societies. Among other impacts, the effects of climatic changes on pests, pest-crop interactions and pest control are important with relevance to global food security, and hence require immediate attention by plant scientists. This book discusses innovative and the most effective pest control methods under an environment of changing climate and elaborates on the impact of drought on plant pests and their control.

Cold stress is one of the prevalent environmental stresses affecting crop productivity, particularly in temperate regions. Numerous plant types of tropical or subtropical origin are injured or killed by non-freezing low temperature, and display a range of symptoms of chilling injury such as chlorosis, necrosis, or growth retardation. In contrast, chilling tolerant species thrive well at such temperatures. To thrive under cold stress conditions, plants have evolved complex mechanisms to identify peripheral signals that allow them to counter varying environmental conditions. These mechanisms include stress perception, signal transduction, transcriptional activation of stress-responsive target genes, and synthesis of stress-related proteins and other molecules, which help plants to strive through adverse environmental conditions. Conventional breeding methods have met with limited success in improving the cold tolerance of important crop plants through inter-specific or inter-generic hybridization. A better understanding of physiological, biochemical and molecular responses and tolerance mechanisms, and discovery of novel stress-responsive pathways and genes may contribute to efficient engineering strategies that enhance cold stress tolerance. It is therefore imperative to accelerate the efforts to unravel the biochemical, physiological and molecular mechanisms underlying cold stress tolerance in plants. Through this new book, we intend to integrate the contributions from plant scientists targeting cold stress tolerance mechanisms using physiological, biochemical, molecular, structural and systems biology approaches. It is hoped that this collection will serve as a reference source for those who are interested in or are actively engaged in cold stress research.

Cotton is one of the most important fiber and cash crops throughout the world, and it plays a dominant role in the industrial and agricultural economies of many countries. Here is a rich resource of information on the cultivation and production of cotton. This volume provides an overview of the origin and evolution of cotton and its physiological basis and characterization, and goes on to discuss methods of cultivation, biotic stresses, and harvesting and postharvest technology. The volume addresses new advances in research for best cultivation methods, effective utilization of resources, and operations for achieving higher yields, thus achieving higher productivity. The authors take an interdisciplinary approach, providing valuable information necessary to increase cotton productivity to meet the world's growing demands.

Europe was told that it had no choice but to accept agbiotech, yet this imperative was turned into a test of democratic accountability for societal choices. Since the late 1990s, European public controversy has kept the agri-biotech industry and its promoters on the defensive. As some opponents and regulators alike have declared, 'GM food/crops are on trial'. Suspicion of their guilt has been evoked by moral symbols, as disputes over whether genetically-modified products are modest benign improvements on traditional plant breeding, or dangerous Frankenfoods; and in disputes over whether they are global saviours, or control agents of multinational companies. This book examines European institutions being 'put on trial' for how their regulatory procedures evaluate and regulate GM products, in ways which opened up alternative futures. Levidow and Carr highlight how public controversy created a legitimacy crisis, leading to national policy changes and demands, in turn stimulating changes in EU agbiotech regulations as a strategy to regain legitimacy.

The Role of Plant Roots in Crop Production presents the state of knowledge on environmental factors in root growth and development and their effect on the improvement of the yield of annual crops. This book addresses the role of roots in crop production and includes references to numerous annual crops. In addition, it brings together the issues and the state-of-the-art technologies that affect root growth, with comprehensive reviews to facilitate efficient, sustainable, economical, and environmentally responsible crop production.

Written for plant scientists, crop scientists, horticulturalists, and soil scientists, plant physiologists, breeders, environmental scientists, agronomists, and undergraduate and graduate students in different disciplines of agricultural science, The Role of Plant Roots in Crop Production:

• Addresses root architecture and development dynamics to help users improve crop productivity
• Emphasizes crop production, plant nutrition, and soil chemistry relative to root growth and functions
• Covers root morphology, root functions, nutrient and water uptake by roots, root-soil interactions, root-environment interactions, root-microbe interactions, physiology of root crops, and management practices to improve root growth
• Supports content with experimental results, and additional data is presented with pictures

Increasing food production worldwide has become a major issue in the 21st century. Stagnation in grain yield of important food crops in recent years in developed, as well as developing, countries has contributed to a sharp increase in food prices. Furthermore, higher grain yield will be needed in the future to feed a burgeoning world population with a rising standard of living that requires more grain per capita. Technologies that enhance productivity, ensure environmental safety, and conserve natural resources are required to meet this challenge.