The First Asia --- Pacific Conference on Agricultural Biotechnology was held in Beijing, China on 20-24, August, 1992. Over half the population in the world is in the Asian and Pacific Region. With an increasing population and decreasing farming lands, it is important to develop agricultural biotechnology for improvement of the productivity, profitability and stability of the farming system. The Conference's main objectives were to bring together scientists working in different fields of agricultural biotechnology to stimulate discussion on this important process and to have an appraisal of the most recent studies concerning genetic manipulation of plants, plant cell and tissue culture, plant gene regulation, plant-microbe interaction, animal biotechnology etc. The Conference was attended by 391 scientists from different countries and regions. This volume presents the contributions of the lectures and a selected number of posters, which are an up-to-date account of the state of knowledge on agricultural biotechnology. The book provides a valuable reference source not only for specialists in agricultural biotechnology, but also for researchers working on related aspects of agronomy, biochemistry, genetics, molecular biology, microbiology and animal sciences. It is with great pleasure to acknowledge the contributions of the authors in assuring the prompt publication of this volume. We would also extend our sincere thank to Kluwer Academic Publishers for the publication of these proceedings.

Consumers have always been concerned about the quality, and particularly the safety, of the foods they eat. In recent years this concern has taken on additional prominence. Consumer focus on food safety has been sharpened by reports about new risks, such as that posed by "mad cow" disease, and about more familiar sources of risk, such as food borne pathogens, pesticides, and hormones. At the same time, some consumers are in creasingly interested in knowing more about how their food is produced and in selecting products based on production practices. Some of the questions consumers are asking in clude whether food is produced with the use of modern biotechnology, whether it is or ganically produced, how animals are treated in meat and egg production systems, and whether food is produced using traditional methods. Recent trends also show increased consumer demand for a variety of food products that are fresh, tasty, and available on a year-round basis. This has fostered increased global trade in food. For example, consumers in temperate climates such as North America are able to buy raspberries throughout the year, and Europeans can enjoy South American coffee. Trade in processed food products is actually increasing more rapidly than trade in agricultural commodities, further addressing the demand for variety among consumers."

Agricultural markets have entered a long-term process of liberalization, with the aim of reducing imposed market imperfections such as monopolistic public trade, entry barriers and subsidies. The experience of more than a decade of agriculture liberalization offers a good opportunity to review and analyze the outcome of this process and to draw lessons for the future. The central topic in Agricultural Markets Beyond Liberalization is the relationship between market structure and how markets perform in a dynamic context during a liberalization process. The topic is studied from both a micro and macro viewpoint and refers to different types of agricultural markets. This volume brings together the dynamics of agricultural markets in several parts of the world, with a special focus on transition economics and Africa. The different studies cover geographical areas as wide as a district as well as a group of countries, and institutions from individual contracts to multi-national organizations. The analysis of liberalization under different circumstances, and the different methods of analysis used by the authors provide a valuable foundation for the assessment of liberalization.

In the first section dedicated to theoretical thoughts on comparative agriculture, Hubert Cochet introduces the notion of "agricultural development", the very subject of comparative agriculture, with a restored endogenous dimension. He then describes how this approach was slowly consolidated, around the concept of agrarian system in particular. The comparison of agricultural transformations in time and space highlights the importance of the comparatist approach to production processes, their trajectories and differentiation on a worldwide scale. The second section which focuses on the methods and expertise of comparative agriculture, tackles the issues of landscape analysis, field surveys and the historical approach underlying comparative agriculture. It sums up the economic tools mobilised as well as the evaluation perspectives opened up by comparative agriculture.

As the world's population continues to expand, maintaining and indeed increasing agricultural productivity is more important than ever, though it is also more difficult than ever in the face of changing weather patterns that in some cases are leading to aridity and desertification. The absence of scientific soil inventories, especially in arid areas, leads to mistaken decisions about soil use that, in the end, reduce a region's capacity to feed its population, or to guarantee a clean water supply. Greater efficiency in soil use is possible when these resources are properly classified using international standards. Focusing on arid regions, this volume details soil classification from many countries. It is only once this information is properly assimilated by policymakers it becomes a foundation for informed decisions in land use planning for rational and sustainable uses.

The Symposium on high salinity tolerant plants, held at the University of Al Ain in December 1990, dealt primarily with plants tolerating salinity levels exceeding that of ocean water and which at the same time are promising for utilization in agriculture or forestry. These plants could be very useful for a country like the UAE where fresh water resources are very scarce and the groundwater available at some places is already very salty. More than 60 million woody trees/shrubs have been planted so far and more are planned for the inland plains underlain with brackish groundwater. These species were no solution for the widely barren shoreline of the UAE. Here mangrove species were of potential use, and one species, Avicennia Marina, occurs widely and has been successfully planted for about a decade. Converting the tree plantations into economically useful cropping systems is still a problem requiring much research and development. The book deals in several sections with conventional irrigation systems using marginal water. The species used in these systems are mostly hybrids of conventional crops. The irrigation systems, however, have similar problems as may be expected for irrigation with seawater. Papers show the participants' experiments in this area. The volume serves as a link between scientists working for the improvement of classical irrigation systems and those interested in the application of a new dimension of salinity levels for irrigation water.

Post-agricultural studies have been central to the development of both the science of plant ecology and ecology in general. The study of old field succession in particular allows us to observe the development of the structure and function of communities, as well as understand the roles of history and initial conditions in that process. Understanding old field succession can help the public address important scientific and social issues, such as deforestation and forest regeneration, forest restoration, sustainability of agriculture, maintenance of biodiversity, and impacts of global climate change on forest dynamics. Post-Agricultural Succession in the Neotropics focuses on published scientific work and its implications for wise management of old field ecosystems in the neotropics, where conversion of land to cropping systems is the most common kind of disturbance and many landscapes are defined by areas recovering from agriculture. Written for researchers, professionals, and students of ecology, the book provides a background in old field ecosystems and proposes restoration strategies and a trajectory for future research. methodologies and management strategies proposed.

Concern about the environmental impacts of transgenic crops is one of the major reasons for the EU 's quasi-moratorium on GMOs. This book shows that the economic implications of these concerns are far-reaching and complex, ranging from the farm to research and technology development to consumer reactions, and that they influence government response, international trade and public and private incentives for R & D.

On 'Lady Day', March 1943 a group of Christian pacifists took possession of a vacant farm in Frating, a hamlet on the Essex Tendring Peninsula. There they established a working community, inspired by their association with The Adelphi journal, where D.H.Lawrence, John Middleton Murry, Vera Brittain, Iris Murdoch, George Orwell and others shared ideas for the future with European religious radicals such as Nikolai Berdyaev, Martin Buber and Simone Weil. Frating Hall Farm provided a settlement and livelihood for individuals and families (as well as a temporary sanctuary for refugees and prisoners-of-war), and over time became a successful arable and livestock land-holding of more than 300 acres. Scorned initially by their neighbours for their anti-war views, the Frating community won respect not only through their farming achievements, but having established a touring theatre company and choir, for bringing new life to the villages and churches around them. The lost story of Frating Hall Farm is based on the reminiscences of those who grew up on the farm, together with photographs, letters and organisational records, never before seen or published. The book is a kaleidoscopic history of a farm during its eleven-year occupation, and an enquiry into the passionate religious and political ideals of the back-to-the-land movement in wartime and post-war rural England.

Earthworms, which belong to the order Oligochaeta, comprise roughly 3,000 species grouped into five families. Earthworms have been called 'ecosystem engineers'; much like human engineers, they change the structure of their environments. Earthworms are very versatile and are found in nearly all terrestrial ecosystems. They play an important role in forest and agricultural ecosystems. This Soil Biology volume describes the various facets of earthworms, such as their role in soil improvement, soil structure, and the biocontrol of soil-borne plant fungal diseases. Reviews discuss earthworms' innate immune system, molecular markers to address various issues of earthworm ecology, earthworm population dynamics, and the influences of organic farming systems and tillage. Further topics include the characteristics of vermicompost, relationships between soil earthworms and enzymes, the role of spermathecae, copulatory behavior, and adjustment of the donated sperm volume.

Plant biotechnology offers important opportunities for agriculture, horticulture, and the pharmaceutical and food industry by generating transgenic varieties with altered properties. This is likely to change farming practice and reduce the potential negative impact of plant production on the environment. This volume shows the worldwide advances and potential benefits of plant genetic engineering focusing on the third millennium.
The authors discuss the production of transgenic plants resistant to biotic and abiotic stress, the improvement of plant qualities, the use of transgenic plants as bioreactors, and the use of plant genomics for genetic improvement and gene cloning. Unique to this book is the integrative point of view taken between plant genetic engineering and socioeconomic and environmental issues. Considerations of regulatory processes to release genetically modified plants, as well as the public acceptance of the transgenic plants are also discussed.
This book will be welcomed by biotechnologists, researchers and students alike working in the biological sciences. It should also prove useful to everyone dedicated to the study of the socioeconomic and environmental impact of the new technologies, while providing recent scientific information on the progress and perspectives of the production of genetically modified plants.

The work is dedicated to Professor Marc van Montagu.

These Proceedings evolved from the OECD Co-operative Research Programme workshop on "Potential ecological impact of transgenic plants expressing viral sequencies," held at the Agricultural Biotechnology Center in Godollo, Hungary on 24-26 April 1997. The OECD Co-operative Research Programme At the Directorate for Agrieulture of the Organisation for Economie Co-operation and Development (OECD) a co-operative research programme for "Biological Resource Management" has existed since 1990. It foeuses on work in four specific topie areas, one of whieh is "Ecology and utilisation of new organisms" (Theme 3). The activities promoted by this programme are post-doctoral fellowships (announced annually), and the organisation of expert workshops (1-2 workshops per Theme per year). The 26 OECD member countries participating in this programme are: Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, ltaly, Korea, Japan, the NetherIands, New Zealand, Norway, Poland, Portugal, Spain, Sweden, SwitzerIand, Turkey, the UK, and the USA."

Today the goal of designing highly productive, sustainable agricultural produc tion systems is at the forefront of the agricultural research agenda around the world. The key to designing sustainable agricultural production technologies is in understanding their economic, environmental, and human health impacts. This volume presents a methodology designed to quantify such impacts and to represent them as tradeoff's. We propose this tradeoff' methodology as an approach to accomplish two essential elements in achieving agricultural sustainability. First, the tradeoff's method is a key to the design of successful interdisciplinary research projects to assess sustainability of production systems. Second, the tradeoff's method provides a successful means to communicate research findings to policy makers and the public. To put this effort into perspective, we would like to explain its origins and reflect on its implications for conducting future research. In 1987, the Rockefeller Foundation commissioned a report that set out to ascertain why, in view ofthe extensive literatures on certain classes of agricul tural pollution, there had been few if any attempts to incorporate pollution externalities into the rather voluminous literature on the assessment of agricultural research impacts (Antle and Capalbo, 1988; see also Antle, 1994)."

For courses in Greenhouse Management. Based on the author's life-long practical experiences both in the industry and in research, Greenhouse Operation and Management, Seventh Edition, offers students a state-of-the-art guide to the operation of commercial flower and vegetable greenhouses. The text presents coverage in the order in which decision-making concerns occur for a person entering the greenhouse business. Exceptionally comprehensive, yet accessible, it provides detailed, step-by-step instructions in layman's terms for ALL aspects of the business-from the physical facilities, to the day-to-day operations, to business management and marketing.

The Mekong Delta of Vietnam is one of the most productive agricultural areas in the world. The Mekong River fans out over an area of about 40,000 sq kilometers and over the course of many millennia has produced a region of fertile alluvial soils and constant flows of energy. Today about a fourth of the Delta is under rice cultivation, making this area one of the premier rice granaries in the world. The Delta has always proven a difficult environment to manipulate, however, and because of population pressures, increasing acidification of soils, and changes in the Mekong's flow, environmental problems have intensified. The changing way in which the region has been linked to larger flows of commodities and capital over time has also had an impact on the region: For example, its re-emergence in recent decades as a major rice-exporting area has linked it inextricably to global markets and their vicissitudes. And most recently, the potential for sea level increases because of global warming has added a new threat. Because most of the region is on average only a few meters above sea level and because any increase of sea level will change the complex relationship between tides and down-river water flow, the Mekong Delta is one of the areas in the world most vulnerable to the effects of climate change. How governmental policy and resident populations have in the past and will in coming decades adapt to climate change as well as several other emerging or ongoing environmental and economic problems is the focus of this collection.