This handbook covers a whole range of issues relating to local seed supply systems, including participatory plant breeding, and both technical and practical information on seed production and variety maintenance. It suggests new approaches and methods to support on-farm seed production by small-scale farmers in developing countries. The first part of the book describes the functioning of local seed systems and discusses their strengths, limitations and possibilities for improvement. The authors discuss in detail issues of genetic diversity and in-situ conservation, farmers' rights and legislation. The cases presented here illustrate the functioning of local seed systems and experiences with improving them. The second part contains technical information on seed production, selection, storage and distribution, and varietal maintenance and improvement of different groups of important food crops, which can be applied and implemented at the level of small-scale farming. The third part contains practical guidelines about how on researchers and agriculturalists might carry out surveys to investigate local seed systems and their limitations, and how they can involve interested farmers in practical experimentation to improve their crop seed. This book will be of great value and interest to people who work directly with farmers, including extension agents, national and international NGOs, and farmers' cooperative workers.

Now in Paperback “A fantastic guide for organic seed breeders and producers. [Navazio] has taken organic seed production to a higher level.” —Suzanne Ashworth, author of Seed to Seed The Organic Seed Grower is a comprehensive manual for the serious vegetable grower who is interested in growing high-quality seeds using organic farming practices. It is written for both home seed savers and diversified small-scale farmers who want to learn the necessary steps involved in successfully producing a seed crop organically. Detailed profiles for each of the major vegetables provide users with practical, in-depth knowledge about growing, harvesting, and processing seed for a wide range of common and specialty vegetable crops, from Asian greens to zucchini. In addition, readers will find extensive and critical information on topics including: • Seed-borne diseases • The reproductive biology of crop plants • Annual vs. biennial seed crops • Isolation distances needed to ensure varietal purity • Maintaining adequate population size for genetic integrity • Seed crop climates • Seed cleaning basics • Seed storage for farmers • and more . . . This book can serve as a bridge to lead skilled gardeners, who are already saving their own seed, into the idea of growing seed commercially. And for diversified vegetable farmers who are growing a seed crop for sale for the first time, it will provide details on many of the tricks of the trade that are used by professional seed growers. This manual will help the budding seed farmer to become more knowledgeable, efficient, and effective in producing a commercially viable seed crop. Written by well-known plant breeder and organic seed expert John Navazio, The Organic Seed Grower is the most useful guide to best practices in this exciting and important field.

The skills of seed saving are vital for small organic food producers and the whole of agriculture. Farmers and gardeners need to be able to produce their seeds as a basic, inalienable way to control their means of production. Part of the NOFA guides. Includes information on: Strengths and limitations of hybrid varieties Before you grow the seed (selecting varieties, saving seed and improving crops, intellectual property rights) Growing seed (pollination biology, harvesting, cleaning, storage, germination testing) Details on individual crops (amaranth, crucifers, beets and chard, lettuce, cucurbits, corn and small grains, nightshades, root veggies) Plus detailed appendices including more info on seed cleaning, seed companies, and more.

Community seed banks first appeared towards the end of the 1980s, established with the support of international and national non-governmental organizations. This book is the first to provide a global review of their development and includes a wide range of case studies. Countries that pioneered various types of community seed banks include Bangladesh, Brazil, Ethiopia, India, Nepal, Nicaragua, the Philippines and Zimbabwe. In the North, a particular type of community seed bank emerged known as a seed-savers network. Such networks were first established in Australia, Canada, the UK and the USA before spreading to other countries. Over time, the number and diversity of seed banks has grown. In Nepal, for example, there are now more than 100 self-described community seed banks whose functions range from pure conservation to commercial seed production. In Brazil, community seed banks operate in various regions of the country. Surprisingly, despite 25 years of history and the rapid growth in number, organizational diversity and geographical coverage of community seed banks, recognition of their roles and contributions has remained scanty. The book reviews their history, evolution, experiences, successes and failures (and reasons why), challenges and prospects. It fills a significant gap in the literature on agricultural biodiversity and conservation, and their contribution to food sovereignty and security.

This Fourth Edition of Principles of Seed Science and Technology, like the fIrst three editions, is written for the advanced undergraduate student or lay person who desires an introduction to the science and technology of seeds. The fIrst nine chapters present the seed as a biological system and cover its origin, development, composition, function (and sometimes nonfunction), performance and ultimate deterioration. The last nine chapters present the fundamentals of how seeds are produced, conditioned, evaluated and distributed in our modern agricultural society. Two new chapters have been added in this fourth edition, one on seed ecology and the second on seed drying. Finally, revisions have been made throughout to reflect changes that have occurred in the seed industry since publication of the Third Edition. Because of the fundamental importance of seeds to both agriculture and to all of society, we have taken great care to present the science and technology of seeds with the respect and feeling this study deserves. We hope that this feeling will be communicated to our readers. Furthermore, we have attempted to present information in a straight-forward, easy-ta-read manner that will be easily understood by students and lay persons alike. Special care has been taken to address both current state-of-the-art as well as future trends in seed technology.