Download or read book Manual for Hybrid Rice Seed Production written by Sant S. Virmani and published by Int. Rice Res. Inst.. This book was released on 1993 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Rice Development and Seed Production in China written by National Foreign Assessment Center (U.S.) and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Community Seed Production Sustainability in Rice Wheat Farming written by Narayan Prasad Khanal and published by Springer. This book was released on 2015-05-07 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyzes the sustainability of community seed production under a rice–wheat farming system from microeconomic perspectives, considering how seed producers benefit from community seed production and how those benefits continue into the future. Seed producers’ performance in resource management, governance and marketing strategies indicates current benefits, whereas soil conservation and risk-management practices provide the basis for future benefits. Community seed production is a local-level seed management system owned by farmers. This system provides the institutional mechanism to supply diversified seed demands of open-pollinated varieties of food crops in a cost-effective way in rural regions. Being able to address the concerns of food insecurity, poverty, climate stress and biodiversity loss in programs and policies of development agencies, community seed production is gaining popularity among the farmers and the policy makers in developing countries. This book discusses the issues of organizational governance of the community seed producers’ groups and links them with household-level benefits to understand the organizational dynamism and the probable development paths of such organizations in the future. It also highlights the necessity to institutionalize lessons learned in community seed production in the stakeholders’ programs and policies. These understandings provide a basis for formulating policies for strengthening the system in developing countries. Students, researchers, policy makers and donor agencies working with CSP in the developing world will find this book useful in broadening their understanding of CSP in general and its sustainability in particular.
Download or read book Hybrid Rice Technology written by S. S. Virmani and published by Int. Rice Res. Inst.. This book was released on 1994 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This symposium is a follow-up to one held in China in 1986. Since then considerable progress has been made in research and development of hybrid rice. This second international symposium was held under the umbrella of the International Rice Research Conference. Eighty scientists and seed production experts from 18 countries, IRRI and FAO attended. Contributions covered breeding, biotechnology, seed production, agronomy, plant physiology, plant pathology, entomology and economics.
Download or read book Principles and Practices of Rice Production written by Surajit K. De Datta and published by Int. Rice Res. Inst.. This book was released on 1981 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed Industry Development in a North South Perspective written by Ton Groosman and published by . This book was released on 1991 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Rice The Journey written by Robin Andrews and published by Lulu.com. This book was released on 2017-03-17 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1964 a Chinese rice breeder, Yuan Longping, discovered a rice plant that was the genetic key to the successful development of high yielding hybrid rice. At that time, China was a secretive communist state where self pollinating varietal rice was grown on collective farms using highly labor intensive practices. Forty years later, by 2004, hybrid rice, based on Yuan's work, was being grown commercially in the United States using mechanized farming practices. This book describes the journey across those four decades and the chain of events and people which resulted in technical success in China by 1976 and in the United States by 2000. Extraordinary political and technological developments occurred during this time and the book describes these and the many serendipitous events and people of different backgrounds that were involved in the successful journey. It is estimated that hybrid rice is now (2017) saving the US rice industry as much as $100 million each year.
Download or read book Manual for hybrid rice seed production Hindi ver written by and published by IRRI. This book was released on with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Rice Breeding Manual written by S. S. Virmani and published by Int. Rice Res. Inst.. This book was released on 1997 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterosis breeding and hybrid rice; Male sterility systems in rice; Organization of hybrid rice breeding program using CMS system; Source nursery; CMS maintenance and evaluation nursery; Testcross nursery; Restorer purification nursery; Backcross nursery; Combining ability nursery; Breeding rice hybrids with TGMS system; Nucleus and breeder seed production of A, B, R, and TGMS lines; Seed production of experimental rice hybrids; Evaluation of experimental rice hybrids; Improvement of parental lines; Methods of enhancing the levels of heterosis; Quality assurance procedures in hybrid rice breeding.
Download or read book Heterosis and Hybrid Rice Breeding written by Sant Singh Virmani and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice is the most important food crop of the developing world and the demand for it is growing. Provided here is a concise account of hybrid breeding in rice, a newly deployed breeding approach to increase the yield. Research on heterosis, male sterility systems, outcrossing mechanisms, disease/insect management, and grain quality considerations in hybrid rice are reviewed. The book contains a wealth of useful information for practicing hybrid rice breeders, seed producers, researchers, and students of plant breeding.
Download or read book The Structure Conduct and Performance of the Seed Industry in Thailand written by Suthad Setboonsarng and published by . This book was released on 1991 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sticky seeds Why old seeds continue to dominate the rice wheat agriculture in Eastern India written by Kishore, Avinash and published by Intl Food Policy Res Inst. This book was released on 2020-05-05 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary findings of a joint ICAR-IFPRI survey covering more than 2,000 farmers from 40 districts of Bihar, eastern Uttar Pradesh and Odisha show that the adoption of improved varieties of rice and wheat seeds is slow in the region. The average age of wheat varieties grown in Bihar and eastern Uttar Pradesh is 25-30 years. A 2016 study of varietal adoption of wheat by CIMMYT and the Michigan State University (MSU) in Bihar also reports similar findings (Ray and Maredia, 2016). The average age of non-hybrid rice varieties grown in the region is around the same. The situation is even worse for pulses where landraces of unknown origins dominate the cropped area. More than 90% of pulse growers in our sample in Bihar and Odisha could not recall the names of the seed varieties they had sown. The two state governments are implementing programs with subsidies, extension and participatory seed production programs to popularize rice and wheat varieties that are less than 10 years old and pulse varieties that are less than 15 years old. The IFPRI-ICAR survey shows that these programs have had limited impact. Rice and wheat together cover more than two-thirds of the gross cropped area (GCA) in Bihar and eastern Uttar Pradesh and rice alone accounts for 46% of GCA in Odisha. Why is the adoption of improved seeds so slow for the main crops in these states?
Download or read book Varietal development and the effectiveness of seed sector policies written by Takeshima, Hiroyuki and published by Intl Food Policy Res Inst. This book was released on 2016-10-04 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seed is an essential input in agriculture, and the availability of quality seed of superior varieties is often critical for improved food security and poverty reduction in developing countries like Nigeria. However, while the Nigerian government recognizes the importance of improving seed availability, its recent focus in the seed sector has mostly been on improving seed quality rather than on varietal development. This report argues that this is partly due to a knowledge gap regarding the relationship between varietal technology levels and the effectiveness of seed sector policies. We first provide a brief conceptual discussion on how the effectiveness of selected seed sector policies, such as certification, subsidies, and private sector promotion, may depend on underlying varietal technology levels. Using rice as an example, we then provide key historical and international perspectives on how varietal technology development by the public sector through intensive rice breeding had pre-ceded the expansion of seed certification and testing, and show that there still is a substantial need for the Nigerian government to develop improved rice varieties through intensified domestic plant breeding in order for its seed certification and seed subsidy programs to be more effective.
Download or read book Hybrid Rice Economics written by Robin Andrews and published by Lulu.com. This book was released on 2015-08-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sets out a framework for determining the value and economic viability of a rice hybrid. The book is written for hybrid rice breeders, farmers, millers, seed producers and the managers of hybrid rice development programs. The methodology provides insight into the key factors that drive hybrid value. The economic model is accompanied by tabular and graphical displays that allow the results to be visualized and understood. The model allows global comparisons to be made between countries and regions where hybrid rice is grown.
Download or read book Rice seed production in Japan and its perspective written by Japan International Cooperation Agency. Tsukuba International Agricultural Training Centre and published by . This book was released on with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cereal Seed Industry in Asia and the Pacific written by and published by . This book was released on 1987 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rice Production Worldwide written by Bhagirath S. Chauhan and published by Springer. This book was released on 2017-02-16 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses aspects of rice production in rice-growing areas of the world including origin, history, role in global food security, cropping systems, management practices, production systems, cultivars, as well as fertilizer and pest management. As one of the three most important grain crops that helps to fulfill food needs all across the globe, rice plays a key role in the current and future food security of the world. Currently, no book covers all aspects of rice production in the rice-growing areas of world. This book fills that gap by highlighting the diverse production and management practices as well as the various rice genotypes in the salient, rice-producing areas in Asia, Europe, Africa, the Americas, and Australia. Further, this text highlights harvesting, threshing, processing, yields and rice products and future research needs. Supplemented with illustrations and tables, this text is essential for students taking courses in agronomy and production systems as well as for agricultural advisers, county agents, extension specialists, and professionals throughout the industry.
