Enhancing the Use of Crop Genetic Diversity to Manage Abiotic Stress in Agricultural Production Systems PDF Download

Author: Devra Ivy Jarvis
Publisher: Bioversity International
ISBN: 9290437227
Category : Field crops
Languages : en
Pages : 104

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Author: Devra I. Jarvis
Publisher: Yale University Press
ISBN: 0300220820
Category : Technology & Engineering
Languages : en
Pages : 416

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Book Description
Based on twenty years of global research, this is the first comprehensive reference on crop genetic diversity as it is maintained on farmland around the world. Showcasing the findings of seven experts representing the fields of ecology, crop breeding, genetics, anthropology, economics, and policy, this invaluable resource places farmer-managed crop biodiversity squarely in the center of the science needed to feed the world and restore health to our productive landscapes. It will prove to be an essential tool in the training of agricultural and environmental scientists seeking the solutions necessary to ensure healthy, resilient ecosystems for future generations.

Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251316872
Category : Nature
Languages : en
Pages : 151

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Book Description
The cultivation of diverse farmers’ varieties/landraces, which tend to be well-adapted and suited to local production systems, confers increased resilience for crop production. Farmers’ varieties/landraces are also potential sources of traits for crop improvement, especially for developing varieties tolerant to biotic and abiotic stresses and for incorporating farmer-preferred traits. Unfortunately, many of these genetic resources have been replaced by modern cultivars in recent decades, resulting in a reduction in the total number of different varieties grown and/or loss of heterogeneity. Such losses make farming systems less resilient, especially to shocks from abiotic and biotic stresses. These guidelines, intended as reference materials for preparing a National Plan for the Conservation and Sustainable Use of Farmers’ Varieties/Landraces, will contribute to addressing this continuing loss of diversity. The guidelines are therefore a useful tool for development practitioners, researchers, students and policymakers who work on the conservation and sustainable use of these valuable resources.

Author: P.M. Priyadarshan
Publisher: Springer Nature
ISBN: 3030749266
Category : Science
Languages : en
Pages : 620

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Book Description
Cash crops are grown and sold for monetary gain and not necessarily for sustenance. They include coffee, tea, coconut, cotton, jute, groundnut, castor, linseed, cocoa, rubber, cassava, soybean, sweet potato, potato, wheat, corn and teff. While some of these crops have been improved for realizing yield potential, breeding of many of them is still in infancy. Crops that underwent rigorous breeding have eventually lost much of the diversity due to extensive cultivation with a few improved varieties and the diversity in less bred species is to be conserved. Over the past years, scholars and policy makers have become increasingly aware of the short and long-run impact of climatic factors on economic, food security, social and political outcomes . Genetic diversity, natural and induced, is much needed for the future generations to sustain food production with more climate resilient crops. In contrast, crop uniformity produced across the farm fields in the form of improved varieties is genetically vulnerable to biotic and abiotic stresses. Thus, it is essential and challenging to address the issue of compromising between maximizing crop yield under a given set of conditions and minimizing the risk of crop failure when conditions change. Cash crops are grown in an array of climatic conditions. Many of the world’s poor still live in rural areas. Many are subsistence farmers, operating very small farms using very little agricultural inputs for achieving marketable outputs. Conserving the diversity of these crops and addressing all issues of crop culture through modern tools of biotechnology and genomics is a real challenge. We believe the focus of this book is to fill an unmet need of this and other grower communities by providing the necessary knowledge, albeit indirectly via the academics, to manage the risks of cash crops breeding through managing genetic diversity.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309131863
Category : Technology & Engineering
Languages : en
Pages : 476

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Book Description
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.

Author: Abdallah Bari
Publisher: CRC Press
ISBN: 1315359995
Category : Technology & Engineering
Languages : en
Pages : 349

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Applied Mathematics and Omics to Assess Crop Genetic Resources for Climate Change Adaptive Traits focuses on practical means and approaches to further the use of genetic resources for mitigating the effects of climate change and improving crop production. Genetic diversity in crop plants is being further explored to increase yield, disease resistance, and nutritional value by employing recent advances in mathematics and omics technologies to promote the adaptation of crops to changing climatic conditions. This book presents a broad view of biodiversity and genetic resources in agriculture and provides answers to some current problems. It also highlights ways to provide much-needed information to practitioners and innovators engaged in addressing the effects of global climate change on agriculture. The book is divided into sections that cover: The implications of climate change for drylands and farming communities The potential of genetic resources and biodiversity to adapt to and mitigate climate change effects Applications of mathematics and omics technologies Genomics and gene identification We are in the midst of significant changes in global climates, and its effects are already being felt throughout the world. The increasing frequency of droughts and heat waves has had negative impacts on agricultural production, especially in the drylands of the world. This book shares the collective knowledge of leading scientists and practitioners, giving readers a broader appreciation and heightened awareness of the stakes involved in improving and sustaining agricultural production systems in the face of climate change.

Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309437385
Category : Science
Languages : en
Pages : 607

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Book Description
Genetically engineered (GE) crops were first introduced commercially in the 1990s. After two decades of production, some groups and individuals remain critical of the technology based on their concerns about possible adverse effects on human health, the environment, and ethical considerations. At the same time, others are concerned that the technology is not reaching its potential to improve human health and the environment because of stringent regulations and reduced public funding to develop products offering more benefits to society. While the debate about these and other questions related to the genetic engineering techniques of the first 20 years goes on, emerging genetic-engineering technologies are adding new complexities to the conversation. Genetically Engineered Crops builds on previous related Academies reports published between 1987 and 2010 by undertaking a retrospective examination of the purported positive and adverse effects of GE crops and to anticipate what emerging genetic-engineering technologies hold for the future. This report indicates where there are uncertainties about the economic, agronomic, health, safety, or other impacts of GE crops and food, and makes recommendations to fill gaps in safety assessments, increase regulatory clarity, and improve innovations in and access to GE technology.

Author: Vijay Rani Rajpal
Publisher: Springer
ISBN: 3319919563
Category : Science
Languages : en
Pages : 268

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Book Description
Abiotic stresses such as drought (water deficit), extreme temperatures (cold, frost and heat), salinity (sodicity) and mineral (metal and metalloid) toxicity limit productivity of crop plants worldwide and are big threats to global food security. With worsening climate change scenarios, these stresses will further increase in intensity and frequency. Improving tolerance to abiotic stresses, therefore, has become a major objective in crop breeding programs. A lot of research has been conducted on the regulatory mechanisms, signaling pathways governing these abiotic stresses, and cross talk among them in various model and non-model species. Also, various ‘omics’ platforms have been utilized to unravel the candidate genes underpinning various abiotic stresses, which have increased our understanding of the tolerance mechanisms at structural, physiological, transcriptional and molecular level. Further, a wealth of information has been generated on the role of chromatin assembly and its remodeling under stress and on the epigenetic dynamics via histones modifications. The book consolidates outlooks, perspectives and updates on the research conducted by scientists in the abovementioned areas. The information covered in this book will therefore interest workers in all areas of plant sciences. The results presented on multiple crops will be useful to scientists in building strategies to counter these stresses in plants. In addition, students who are beginners in the areas of abiotic stress tolerance will find this book handy to clear their concepts and to get an update on the research conducted in various crops at one place

Author: Geraldo Magela de Almeida Cançado
Publisher:
ISBN: 9789533073941
Category :
Languages : en
Pages :

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Author: Jameel M Al-Khayri
Publisher: Springer
ISBN: 9789819952441
Category : Science
Languages : en
Pages : 0

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Book Description
This book collates a wide spectrum of topics relevant to contemporary research achievement in sustainable utilization of plant genetic resources and conservation of plant genetic diversity within the framework of different crop systems. It introduces the status of crop genetic diversity and provides prospects for conservation of crop genetic diversity for sustainable agriculture. Plant genetic diversity is crucial for food security and agro-ecosystem maintenance paving ways to achieve sustainable agriculture development. This necessitates, consciously and judiciously, the conservation of all existing plant genetic resources for sustainable use in a variety of applications for human welfare. The wild and traditional landraces have generated an increased interest as a repertoire of valuable traits for breeding and improvement of cultivated germplasm. Internationally, concerted actions and policies toward for the conservation and management of plant genetic diversity are mounting, from the organization levels to national policies as deemed appropriate for the sustainable development goals. This needs an understanding of genetic diversity of different crops, ecological drivers and the structural changes within genetic diversity due to climate change. It is also equally important to evolve knowledge on what, how and where to conserve the existing plant genetic resources for present and future use. Assessment of the genetic diversity presents in a wild and traditional agro-ecosystem is another step towards effective utilization. In the past few years, advanced breeding tools have been developed which have offered great promise for efficient modification of targeted traits. This book consolidates current knowledge in the above core areas of plant genetic diversity and conservation. It is an essential reference for professionals, researchers, policy makers and commercial entrepreneurs concerned with plant genetic diversity and breeding to achieve enhanced agricultural productivity and sustainability of food resources to ensure food security. The book is also invaluable for graduate students involved in agriculture research.