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Author: T. T. Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Book Description
Author: T. T. Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Book Description
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: K. K. Jena
Publisher: Int. Rice Res. Inst.
ISBN: 9712202895
Category : Rice
Languages : en
Pages : 112
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Book Description
Author: Jauhar Ali
Publisher: Springer Nature
ISBN: 3030665305
Category : Technology & Engineering
Languages : en
Pages : 507
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Book Description
This book is open access under a CC BY 4.0 license. By 2050, human population is expected to reach 9.7 billion. The demand for increased food production needs to be met from ever reducing resources of land, water and other environmental constraints. Rice remains the staple food source for a majority of the global populations, but especially in Asia where ninety percent of rice is grown and consumed. Climate change continues to impose abiotic and biotic stresses that curtail rice quality and yields. Researchers have been challenged to provide innovative solutions to maintain, or even increase, rice production. Amongst them, the ‘green super rice’ breeding strategy has been successful for leading the development and release of multiple abiotic and biotic stress tolerant rice varieties. Recent advances in plant molecular biology and biotechnologies have led to the identification of stress responsive genes and signaling pathways, which open up new paradigms to augment rice productivity. Accordingly, transcription factors, protein kinases and enzymes for generating protective metabolites and proteins all contribute to an intricate network of events that guard and maintain cellular integrity. In addition, various quantitative trait loci associated with elevated stress tolerance have been cloned, resulting in the detection of novel genes for biotic and abiotic stress resistance. Mechanistic understanding of the genetic basis of traits, such as N and P use, is allowing rice researchers to engineer nutrient-efficient rice varieties, which would result in higher yields with lower inputs. Likewise, the research in micronutrients biosynthesis opens doors to genetic engineering of metabolic pathways to enhance micronutrients production. With third generation sequencing techniques on the horizon, exciting progress can be expected to vastly improve molecular markers for gene-trait associations forecast with increasing accuracy. This book emphasizes on the areas of rice science that attempt to overcome the foremost limitations in rice production. Our intention is to highlight research advances in the fields of physiology, molecular breeding and genetics, with a special focus on increasing productivity, improving biotic and abiotic stress tolerance and nutritional quality of rice.
Author: Robert Flint Chandler
Publisher: Int. Rice Res. Inst.
ISBN: 9711040638
Category : Agricultural innovations
Languages : en
Pages : 250
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Book Description
Author: O. H. Frankel
Publisher: CUP Archive
ISBN: 0521205751
Category : Science
Languages : en
Pages : 516
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Book Description
Genetic variation in plant populations. Exploration. Evaluation problems. Conservation and storage. Documentation and information management. Genetic resources centres.
Author: T. R. Paris
Publisher: IRRI
ISBN: 9712202623
Category : Agricultural development projects
Languages : en
Pages : 120
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Book Description
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.
Author: Duncan A. Vaughan
Publisher: Int. Rice Res. Inst.
ISBN: 9712200574
Category : Oryza
Languages : en
Pages : 148
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Book Description
The relationshup between Oryza and other grasses; Species relationships within the genus Oryza; Nemenclature of Oryza species; The evaluation and uses of wild rices; Use of wild rices for evaluation, breeding, or experimental purposes; Choosing wild rice germplasm for evaluation and plant breeding; Sources of wild rice seeds, their germination, and culture; Areas of future endeavor; Oryza species descriptions; O.alta, O. australiensis; O. barthii; O. brachyantha; O. glaberrima; O. grandiglumis; O.latifolia; O. longiglumis; O.meridionalis; O. minuta; O. nivara; O officinalis; O. punctata; O. rhizomatis; O. ridleyi; O. rufipogon; O sativa; Oschlechteri; Genera related to Oryza; Sources of information for species descriptions.
Author:
Publisher: Int. Rice Res. Inst.
ISBN: 9712202887
Category : Rice farming
Languages : en
Pages : 75
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Book Description
Author:
Publisher: Int. Rice Res. Inst.
ISBN: 9712200272
Category : Electronic books
Languages : en
Pages : 900
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Book Description
The Rice Genetics Collection of past symposia and other selected literature contains nearly 4,400 pages of searchable information on rice genetics and cytogenetics published by the IRRI and its partners since 1964. In addition to the five genetics symposia held at 5-year intervals since 1985, the collection contains classic publications that kicked off significant reporting on these subjects in the early 1960s. This collection is a comprehensive and historical documentation on the subject of rice genetics, spanning 45 years of research and scholarly work. Published in 1990, Rice Genetics II contains 65 chapters from various contributors on topics dealing with rice genetic research, including varietal differentiation and evolution; genetic markers, linkage groups, and aneuploids; genetics of stress tolerance, morphological and physiological traits, and disease and insect resistance; tissue and cell culture; molecular genetics of cytoplasmic and nuclear genomes, rice proteins, and disease resistance; RFLP analysis of rice genomes; and transformation techniques.
