Download or read book Manual of Seed Handling in Genebanks written by and published by Bioversity International. This book was released on 2006 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed Survival in Genebanks Genetic and Biochemical Aspects of Seed Deterioration in Barley written by Manuela Nagel and published by Cuvillier Verlag. This book was released on 2011-09-20 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Against the background of 7.4 million accessions stored in genebanks, long-term survival of stored seeds is an important trait. This study intended to elucidate genetic and biochemical mechanisms underlying barley (Hordeum vulgare L.) seed deterioration with respect to genetic diversity at different storage treatments ranging from cold storage with low seed moisture content (smc) to experimental seed ageing with high smc. On the basis of an assumed genetic impact on seed deterioration quantitative genetic analyses using four mapping populations were applied. Seeds of three bi-parental barley mapping populations were experimentally aged. Subsequent quantitative trait locus (QTL) analyses revealed 4 major loci on chromosomes 2H, 5H and 7H explaining a phenotypic variation up to 54%. Detected loci were confirmed by the fourth population that compromises a collection of independent barley accessions. These genotypes, multiplied in two field plots and experimentally aged were analysed by a genome-wide association approach which resulted in 105 marker-trait associations (MTAs) at 32 loci. Putative functions of MTAs and closely linked QTLs revealed predominantly biotic and abiotic stress affect seed longevity. To address aspects of abiotic, including oxidative stress, the major antioxidant glutathione (GSH) and its half-cell reduction potential (EGSSG/2GSH) were analysed in a set of seeds that had lost viability during genebank storage (5 to 13 years) and a set of artificially aged seeds. A general depletion of the glutathione pool [GSH plus glutathione disulphide (GSSG)] and a shift towards more oxidising conditions occurred with decreasing viability. Highly significant correlations of viability with EGSSG/2GSH but also %GSSG were found. Plotting both parameters against each other, clusters of ageing treatments were formed presumably caused by an acidifying effect of higher smc levels during artificial ageing indicative of different processes occurring when different ageing conditions were used. Tocochromanols were predominately represented as tocotrienols and did not show any relationship with seed deterioration. Viability loss and storage was not correlated with changes in major storage compounds, starch, proteins and oil. In summary, it appears that barley seed ageing was affected by genetic factors, by environmental factors during seed development, by the smc during storage and by the type of ageing treatment.
Download or read book Genebank Standards written by and published by Bioversity International. This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genebank Standards for Plant Genetic Resources for Food and Agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-06-08 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well-managed genebanks both safeguard genetic diversity and make it available to breeders. The Genebank Standards for Plant Genetic Resources for Food and Agriculture lay down the procedures for conserving plant genetic resources.These voluntary Standards set the benchmark for current scientific and technical best practices, and support the key international policy instruments for the conservation and use of plant genetic resources.
Download or read book Managing Global Genetic Resources written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This anchor volume to the series Managing Global Genetic Resources examines the structure that underlies efforts to preserve genetic material, including the worldwide network of genetic collections; the role of biotechnology; and a host of issues that surround management and use. Among the topics explored are in situ versus ex situ conservation, management of very large collections of genetic material, problems of quarantine, the controversy over ownership or copyright of genetic material, and more.
Download or read book Seed Management Techniques for Genebanks written by J. B. Dickie and published by . This book was released on 1984 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Protocol to Determine Seed Storage Behaviour written by T. D. Hong and published by Bioversity International. This book was released on 1996 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides an approach by which conservationists can determine whether or not long-term seed storage is feasible for a particular species, i.e. whether or not that species shows orthodox seed storage behaviour, and provides advice on the implementation of the protocol, examples of ways in which the results from seed storage studies could be misinterpreted due to confounding factors, as well as several alternative approaches for estimating seed storage behaviour prior to carryng out actual investigations with the seeds. In particular, the latter section introduces the concept of a multicriteria approach for estimating seed storage behaviour.
Download or read book Handbook of Seed Technology for Genebanks Principles and methodology written by R. H. Ellis and published by . This book was released on 1985 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conteúdo: Principles and methodology.
Download or read book Regeneration of Accessions in Seed Collections written by N. R. Sackville Hamilton and published by Bioversity International. This book was released on 1997 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction; Scope and structure of decision guide; Types of collection; Strategic issues; Targets for regeneration; Relevant knowledge base; Establishment of regeneration protocol; Concluding remarks.
Download or read book Regeneration and Multiplication of Germplasm Resources in Seed Genebanks written by E. L. Breese and published by . This book was released on 1989 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seeds and Survival written by Paul Richards and published by Bioversity International. This book was released on 1997 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seeds on Ice Svalbard and the Global Seed Vault written by Cary Fowler and published by Prospecta Press. This book was released on 2024-04-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The remarkable story of the Global Seed Vault--and the valiant effort to save the past and the future of agriculture: Now updated with a new chapter by the author and photos from recent improvements in the facilities. Closer to the North Pole than to the Arctic Circle, on an island in a remote Norwegian archipelago, lies a vast global seed bank buried within a frozen mountain. At the end of a 130-meter long tunnel chiseled out of solid stone is a room filled with humanity's precious treasure, the largest and most diverse seed collection ever assembled: more than a half billion seeds containing the world's most prized crops, a safeguard against catastrophic starvation. The Global Seed Vault, a visionary model of international collaboration, is the brainchild of Cary Fowler, renowned scientist, conservationist, and biodiversity advocate. In SEEDS ON ICE, Fowler tells for the first time the comprehensive inside story of how the "doomsday seed vault" came to be, while the breathtaking photographs offer a stunning guided tour not only of the private vault, but of the windswept beauty and majesty of Svalbard and the enchanting community of people in Longyearbyen. With growing evidence that unchecked climate change will seriously undermine food production and threaten the diversity of crops around the world, SEEDS ON ICE offers a personal and passionate reminder that we shouldn't take our reliance on the world of plants for granted--and that, in a very real sense, the future of the human race rides on this frozen and indispensable biodiversity.
Download or read book Ex Situ Plant Conservation written by Center for Plant Conservation and published by Island Press. This book was released on 2013-02-22 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faced with widespread and devastating loss of biodiversity in wild habitats, scientists have developed innovative strategies for studying and protecting targeted plant and animal species in "off-site" facilities such as botanic gardens and zoos. Such ex situ work is an increasingly important component of conservation and restoration efforts. Ex Situ Plant Conservation, edited by Edward O. Guerrant Jr., Kayri Havens, and Mike Maunder, is the first book to address integrated plant conservation strategies and to examine the scientific, technical, and strategic bases of the ex situ approach. The book examines where and how ex situ investment can best support in situ conservation. Ex Situ Plant Conservation outlines the role, value, and limits of ex situ conservation as well as updating best management practices for the field, and is an invaluable resource for plant conservation practitioners at botanic gardens, zoos, and other conservation organizations; students and faculty in conservation biology and related fields; managers of protected areas and other public and private lands; and policymakers and members of the international community concerned with species conservation.
Download or read book Community Seed Banks written by Ronnie Vernooy and published by Routledge. This book was released on 2015-05-15 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Handbook of Seed Technology for Genebanks Compendium of specific germination information and test recommendations written by R. H. Ellis and published by . This book was released on 1985 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Saving the Seed written by Renee Vellve and published by Routledge. This book was released on 2013-11-05 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic diversity is essential to the security of agriculture. Without the availability of a wide range of plant varieties and the genetic resources they contain, crops cannot adapt to combat the ever-changing threats of pests, diseases and climatic change. Yet, with the increasing industrialisation of modern agriculture, farming has become a business which centres on a handful of new, genetically similar 'super seeds'. Plants must evolve in order to survive, but modern agriculture has replaced diversity with uniformity, and security with vulnerability. Saving the Seed traces the decline of crop varieties in European farming and describes what is being done to safeguard genetic resources for the future. Conservation efforts by government and industry suffer from serious drawbacks, with wrangles over ownership and control of resources. The crucial work is being done by individuals and grassroots organisations, who largely go unrecognised and under-resourced. What is urgently needed are sound policies to promote the diversification of agriculture and an integrated strategy for safeguarding the genetic base of our food system. Saving the Seed contains the most up-to-date information available on genetic resources in Europe and on those working to save them. Renee Vellve is a researcher at GRAIN, a no-governmental organisation working to promote the sustainable conservation and use of genetic diversity, based on grassroots approaches to genetic resources management. Originally published in 1992
Download or read book In Situ Conservation of Wild Plant Species written by Vernon Hilton Heywood and published by Bioversity International. This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
