Download or read book Participatory Varietal Selection in Upland Rice in Nepal written by Sushil Subedi and published by LAP Lambert Academic Publishing. This book was released on 2011-07 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development in plant breeding has led green revolution in many areas of the world due to development of input response superior varieties. In spite of this fact in some environments particularly marginal adoption of modern varieties are poor due to poor assess to seeds and development of suitable varieties that satisfy their needs. Decisions about the adoption of varieties are conditional to farmers' perception to new variety relative to their varieties. Selection of advanced breeding lines by farmers in process of called Participatory Varietal Selection (PVS) has been identified as suitable technique for future varietal selection. Adoption of improved cultivars in marginal uplands of Nepal is very limited. Such poor adoption could be due to the improper understanding of farmers' selection criteria and priority and their implication in breeders' objective setting and selection process. The optimization and assessment of farmers' role in breeding process, their selection criteria, evaluation of traits and priority given by farmers included in this study showed high potential for developing a ideal rice genotypes for upland rainfed ecosystem of Nepal.
Download or read book Guide to Participatory Varietal Selection for Submergence tolerant Rice written by T. R. Paris and published by IRRI. This book was released on 2011 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Green Revolution averted the threat of famine through the rapid adoption of improved rice varieties. However, despite this huge success, hundreds of millions of poor rice-farming families in rainfed areas still live in poverty and suffer from food (rice) insecurity. Despite many released improved rice varieties for rainfed conditions, farmers still use local varieties that can withstand drought and floods but have low yields or they use the same varieties for many years because of a lack of better varieties. Rainfed rice farmers are slow to adopt improved varieties because of several problems. One problem is more of extension than breeding - many farmers, particularly those living in remote rainfed areas, may not have access to or information about the seed of new varieties. Another problem is that variety testing programs are often conducted on-station, which does not represent farmers' fields. Moreover, conventional rice breeding programs usually seek farmers' input only at the very end of the process, when newly released varieties, usually one or two per year, are evaluated in on-farm demonstration trials. Often, in remote and unfavorable areas, subsistence farmers, who comprise the majority of the rural farming population in Asia, give importance to social and cultural dimensions aside from the agronomic performance of the new rice varieties. The complexities of developing acceptable varieties for variable and stressful rainfed environments require that breeders become deeply familiar with men and women farmers' needs and preferences. Since 1977, IRRI has been making efforts to improve communication among farmers, breeders, and extension workers so that men and women farmers' concerns and preferences are considered in plant breeding objectives. Participatory varietal selection (PVS) is a simple way for breeders and agronomists to learn which varieties perform well on-station and on-farm and to obtain feedback from the potential end users in the early phases of the breeding cycle. It is a means for social scientists to identify the varieties that most men and women farmers prefer, including the reasons for their preference and constraints to adoption. Based on IRRI's experience in collaboration with national agricultural research and extension system partners and farmers, PVS, which includes "researcher-managed" and "farmer-managed" trials, is an effective strategy for accelerating the dissemination of stress-tolerant varieties. PVS has also been instrumental in the fast release of stress-tolerant varieties through the formal varietal release system. This guide on PVS will complement the various training programs given by IRRI for plant breeders, agronomists, and extension workers engaged in rice varietal development and dissemination.
Download or read book Upland Rice in India written by R.K. Singh and published by Scientific Publishers. This book was released on 2011-03-01 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive account of upland rice cultivation in different states of India. Upland rice system is considered as most diverse of all rice systems and each states of the country grow different varieties under a range of management conditions and cropping patterns. The 23 chapters in the book consolidate and share the knowledge on rainfed upland rice cultivation practiced in different states. It analyzes the upland rice agro-ecosystem in different states and encompasses various aspects of integrated nutrient management, pest management, varieties available and newer technologies introduced for adoption by farmers to improve the productivity of this fragile ecosystem.
Download or read book Rice Varietal Diversity and Participatory Crop Improvement in Nepal written by Krishna Dev Joshi and published by . This book was released on 2000 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Farmers and Plant Breeding written by Ola Tveitereid Westengen and published by Routledge. This book was released on 2019-10-02 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the history of, and current approaches to, farmer-breeder collaboration in plant breeding, situating this work in the context of sustainable food systems, as well as national and international policy and law regimes. Plant breeding is essential to food production, climate-change adaptation and sustainable development. This book brings together experienced practitioners and researchers involved in collaborative breeding programmes across a diversity of crops and agro-ecologies around the world. Case studies include collaborative sorghum and pearl millet breeding for water-stressed environments in West Africa, participatory rice breeding for intensive rice farming in the Mekong Delta, and evolutionary participatory quinoa breeding for organic agriculture in North America. While outlining the challenges, the volume also highlights the positive impacts, such as yield increases, farmers’ empowerment in the innovation and development processes, contributions to maintenance of crop genetic diversity and adaptation to climate change. This collection offers a range of perspectives on enabling conditions for farmer–breeder collaboration in plant breeding in relation to biodiversity agreements such as the Plant Treaty, trade agreements and related intellectual property rights (IPR) regimes, and national seed policies and laws. Relevant to a wide audience, including practitioners with experience in plant breeding and management of crop genetic resources and those with a broader interest in agriculture and development, as well as students of international cooperation and development, this volume is a timely addition to the literature.
Download or read book Plant Breeding Reviews Volume 43 written by Irwin Goldman and published by John Wiley & Sons. This book was released on 2019-10-07 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents 1. Maria Isabel Andrade: Sweetpotato Breeder, Technology Transfer Specialist, and Advocate 1 2. Development of Cold Climate Grapes in the Upper Midwestern U.S.: The Pioneering Work of Elmer Swenson 31 3. Candidate Genes to Extend Fleshy Fruit Shelf Life 61 4. Breeding Naked Barley for Food, Feed, and Malt 95 5. The Foundations, Continuing Evolution, and Outcomes from the Application of Intellectual Property Protection in Plant Breeding and Agriculture 121 6. The Use of Endosperm Genes for Sweet Corn Improvement: A review of developments in endosperm genes in sweet corn since the seminal publication in Plant Breeding Reviews, Volume 1, by Charles Boyer and Jack Shannon (1984) 215 7. Gender and Farmer Preferences for Varietal Traits: Evidence and Issues for Crop Improvement 243 8. Domestication, Genetics, and Genomics of the American Cranberry 279 9. Images and Descriptions of Cucurbita maxima in Western Europe in the Sixteenth and Seventeenth Centuries 317
Download or read book Agrobiodiversity Management for Food Security written by Jillian M. Lenné and published by CABI. This book was released on 2011 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agrobiodiversity provides most of our food through our interaction with crops and domestic animals. Future global food security is firmly anchored in sound, science-based management of agrobiodiversity. This book presents key concepts of agrobiodiversity management, critically reviewing important current and emerging issues including agricultural development, crop introduction, practical diversity in farming systems, impact of modern crop varieties and GM crops, conservation, climate change, food sovereignty and policies. It will also address claims and misinformation in the subject based on sound scientific principles.
Download or read book Participatory Research and Development for Sustainable Agriculture and Natural Resource Management written by Julian F. Gonsalves and published by IDRC. This book was released on 2005 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for aspiring and new practitioners of Participatory Research and Development (PR&D) as well as field-based researchers in developing countries. Highlights that agricultural research and development has become a joint approach to deal with diverse biophysical environments, multiple livelihood goals, rapid changes in local and global economies, and an expanded range for stakeholders over agriculture and natural resources.
Download or read book On Farm Conservation of Agricultural Biodiversity in Nepal Managing diversity and promoting its benefits written by Bhuwon Ratna Sthapit and published by Bioversity International. This book was released on 2005 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Participatory Approaches to the Conservation and Use of Plant Genetic Resources written by Esbern Friis-Hansen and published by Bioversity International. This book was released on 2000 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Overview of Upland Rice Research written by and published by Int. Rice Res. Inst.. This book was released on 1984 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Renewable Natural Resources Bhutan written by and published by . This book was released on 2010-06 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Analysis of Data from Participatory Methods in Plant Breeding written by Mauricio R. Bellon and published by CIMMYT. This book was released on 2002 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns of Adoption of Improved Rice Varieties and Farm level Impacts in Stress prone Rainfed Areas in South Asia written by and published by Int. Rice Res. Inst.. This book was released on 2012 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Book of abstracts Arnel R Hallauer international symposium on plant breeding written by and published by CIMMYT. This book was released on 2003 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Descriptors for Wild and Cultivated Rice Oryza Spp written by and published by Bioversity International. This book was released on 2007 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resilient Crops for Water Limited Environments written by David Poland and published by CIMMYT. This book was released on 2004 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought, arguably the greatest threat to food production worldwide, was the focal point of a high-level, weeklong workshop supported by The Rockefeller Foundation and CIMMYT, held in May 2004 in Cuernavaca, Mexico.
