Download or read book Genetics and Exploitation of Heterosis in Crops written by J. G. Coors and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the momentous contributions of hybrid crop varieties with worldwide experts. Topics include an overview, quantitative genetics, genetic diversity, biochemistry and molecular biology, methodologies, commercial strategies, and examples from numerous crops.

Download or read book Quantitative Genetics in Maize Breeding written by Arnel R. Hallauer and published by Springer Science & Business Media. This book was released on 2010-09-28 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is used in an endless list of products that are directly or indirectly related to human nutrition and food security. Maize is grown in producer farms, farmers depend on genetically improved cultivars, and maize breeders develop improved maize cultivars for farmers. Nikolai I. Vavilov defined plant breeding as plant evolution directed by man. Among crops, maize is one of the most successful examples for breeder-directed evolution. Maize is a cross-pollinated species with unique and separate male and female organs allowing techniques from both self and cross-pollinated crops to be utilized. As a consequence, a diverse set of breeding methods can be utilized for the development of various maize cultivar types for all economic conditions (e.g., improved populations, inbred lines, and their hybrids for different types of markets). Maize breeding is the science of maize cultivar development. Public investment in maize breeding from 1865 to 1996 was $3 billion (Crosbie et al., 2004) and the return on investment was $260 billion as a consequence of applied maize breeding, even without full understanding of the genetic basis of heterosis. The principles of quantitative genetics have been successfully applied by maize breeders worldwide to adapt and improve germplasm sources of cultivars for very simple traits (e.g. maize flowering) and very complex ones (e.g., grain yield). For instance, genomic efforts have isolated early-maturing genes and QTL for potential MAS but very simple and low cost phenotypic efforts have caused significant and fast genetic progress across genotypes moving elite tropical and late temperate maize northward with minimal investment. Quantitative genetics has allowed the integration of pre-breeding with cultivar development by characterizing populations genetically, adapting them to places never thought of (e.g., tropical to short-seasons), improving them by all sorts of intra- and inter-population recurrent selection methods, extracting lines with more probability of success, and exploiting inbreeding and heterosis. Quantitative genetics in maize breeding has improved the odds of developing outstanding maize cultivars from genetically broad based improved populations such as B73. The inbred-hybrid concept in maize was a public sector invention 100 years ago and it is still considered one of the greatest achievements in plant breeding. Maize hybrids grown by farmers today are still produced following this methodology and there is still no limit to genetic improvement when most genes are targeted in the breeding process. Heterotic effects are unique for each hybrid and exotic genetic materials (e.g., tropical, early maturing) carry useful alleles for complex traits not present in the B73 genome just sequenced while increasing the genetic diversity of U.S. hybrids. Breeding programs based on classical quantitative genetics and selection methods will be the basis for proving theoretical approaches on breeding plans based on molecular markers. Mating designs still offer large sample sizes when compared to QTL approaches and there is still a need to successful integration of these methods. There is a need to increase the genetic diversity of maize hybrids available in the market (e.g., there is a need to increase the number of early maturing testers in the northern U.S.). Public programs can still develop new and genetically diverse products not available in industry. However, public U.S. maize breeding programs have either been discontinued or are eroding because of decreasing state and federal funding toward basic science. Future significant genetic gains in maize are dependent on the incorporation of useful and unique genetic diversity not available in industry (e.g., NDSU EarlyGEM lines). The integration of pre-breeding methods with cultivar development should enhance future breeding efforts to maintain active public breeding programs not only adapting and improving genetically broad-based germplasm but also developing unique products and training the next generation of maize breeders producing research dissertations directly linked to breeding programs. This is especially important in areas where commercial hybrids are not locally bred. More than ever public and private institutions are encouraged to cooperate in order to share breeding rights, research goals, winter nurseries, managed stress environments, and latest technology for the benefit of producing the best possible hybrids for farmers with the least cost. We have the opportunity to link both classical and modern technology for the benefit of breeding in close cooperation with industry without the need for investing in academic labs and time (e.g., industry labs take a week vs months/years in academic labs for the same work). This volume, as part of the Handbook of Plant Breeding series, aims to increase awareness of the relative value and impact of maize breeding for food, feed, and fuel security. Without breeding programs continuously developing improved germplasm, no technology can develop improved cultivars. Quantitative Genetics in Maize Breeding presents principles and data that can be applied to maximize genetic improvement of germplasm and develop superior genotypes in different crops. The topics included should be of interest of graduate students and breeders conducting research not only on breeding and selection methods but also developing pure lines and hybrid cultivars in crop species. This volume is a unique and permanent contribution to breeders, geneticists, students, policy makers, and land-grant institutions still promoting quality research in applied plant breeding as opposed to promoting grant monies and indirect costs at any short-term cost. The book is dedicated to those who envision the development of the next generation of cultivars with less need of water and inputs, with better nutrition; and with higher percentages of exotic germplasm as well as those that pursue independent research goals before searching for funding. Scientists are encouraged to use all possible breeding methodologies available (e.g., transgenics, classical breeding, MAS, and all possible combinations could be used with specific sound long and short-term goals on mind) once germplasm is chosen making wise decisions with proven and scientifically sound technologies for assisting current breeding efforts depending on the particular trait under selection. Arnel R. Hallauer is C. F. Curtiss Distinguished Professor in Agriculture (Emeritus) at Iowa State University (ISU). Dr. Hallauer has led maize-breeding research for mid-season maturity at ISU since 1958. His work has had a worldwide impact on plant-breeding programs, industry, and students and was named a member of the National Academy of Sciences. Hallauer is a native of Kansas, USA. José B. Miranda Filho is full-professor in the Department of Genetics, Escola Superior de Agricultura Luiz de Queiroz - University of São Paulo located at Piracicaba, Brazil. His research interests have emphasized development of quantitative genetic theory and its application to maize breeding. Miranda Filho is native of Pirassununga, São Paulo, Brazil. M.J. Carena is professor of plant sciences at North Dakota State University (NDSU). Dr. Carena has led maize-breeding research for short-season maturity at NDSU since 1999. This program is currently one the of the few public U.S. programs left integrating pre-breeding with cultivar development and training in applied maize breeding. He teaches Quantitative Genetics and Crop Breeding Techniques at NDSU. Carena is a native of Buenos Aires, Argentina. http://www.ag.ndsu.nodak.edu/plantsci/faculty/Carena.htm

Download or read book Root and Tuber Crops written by J.E. Bradshaw and published by Springer Science & Business Media. This book was released on 2010-09-11 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is important to include Tuber and Root Crops in the Handbook of Plant Breeding. They include starchy staple crops that are of increasing importance for global food security and relief of poverty, important millennium goals for the United Nations. Indeed, 2008 was the UN International Year of the Potato in recognition of this role of the potato as the world’s third most important food crop after wheat and rice. The other major staples are cassava, sweetpotato and yam. Together they occupy about 50 million hectares, with production at 640 million metric tons, of which 70% is in developing countries. In total there are more than 30 species of Root and Tuber Crops grown in the world today. Given the content of other volumes in the series, it makes sense to include sugar and fodder beets; swedes and turnips; and minor root and tuber crops so that the book series is as complete as possible. Like the other volumes in the series, this one will present information on the latest in applied plant breeding using the current advances in the field, from an efficient use of genetic resources to the impact of biotechnology in plant breeding. Seven crop specific chapters are proposed, together with an introduction to this diverse set of plant species. Outstanding scientists for each crop species are proposed as senior authors, who may invite co-authors to contribute part of a chapter. In order to increase the overall acceptance of the volume, balance will be sought with authors from different research groups/countries who will be asked to contribute and collaborate where appropriate. The book should be of interest to researchers in both academic and industrial settings, and in both developed and developing countries, as well as students and teachers of plant breeding. It is currently extremely important to educate and train a new generation of plant breeders given the challenges faced by humankind in producing more food for an expanding global population during a period of environmental (including climate) change.

Download or read book HETEROSIS BREEDING IN BRINJAL FOR YIELD AND FRUIT AND SHOOT BORER TOLERANCE written by G. Samlind Sujin P. Karuppaiah and published by Archers & Elevators Publishing House. This book was released on with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gene Pool Diversity and Crop Improvement written by Vijay Rani Rajpal and published by Springer. This book was released on 2016-02-02 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world population is estimated to reach to more than 10 billion by the year 2050. These projections pose a challenging situation for the agricultural scientists to increase crops productivity to meet the growing food demands. The unavailability and/or inaccessibility to appropriate gene pools with desired traits required to carry out genetic improvement of various crop species make this task formidable for the plant breeders. Incidentally, most of the desired genes reside in the wild genetic relatives of the crop species. Therefore, exploration and characterization of wild genetic resources of important crop species is vital for the efficient utilization of these gene pools for sustainable genetic improvements to assure food security. Further, understanding the myriad complexities of genic and genomic interactions among species, more particularly of wild relatives of crop species and/or phylogenetically distant germplasm, can provide the necessary inputs to increase the effectiveness of genetic improvement through traditional and/or genetic engineering methods. This book provides comprehensive and latest insights on the evolutionary genesis of diversity, access and its utilization in the evolution of various crop species. A comprehensive account of various crops, origin, exploitation of the primary, secondary and tertiary gene pools through breeding, biosystematical, cytogenetical and molecular phylogenetical relationships, and genetic enhancement through biotechnological interventions among others have been provided as the necessary underpinnings to consolidate information on the effective and sustainable utilization of the related genetic resources. The book stresses upon the importance of wild germplasm exploration, characterization and exploitation in the assimilation of important crop species. The book is especially intended for students and scientists working on the genetic improvement of crop species. Plant Breeders, Geneticists, Taxonomists, Molecular Biologists and Plant Biotechnologists working on crop species are going to find this book very useful.

Download or read book Unleashing the potential of sweetpotato in Sub Saharan Africa written by Andrade, M. and published by International Potato Center. This book was released on 2009-02-27 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nothing provided

Download or read book Plant Responses to Abiotic Stress written by Heribert Hirt and published by Springer Science & Business Media. This book was released on 2003-10-08 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental stresses represent the most limiting factors for agricultural productivity. Apart from biotic stress caused by plant pathogens, there are a number of abiotic stresses such as extremes in temperature, drought, salinity, heavy metals and radiation which all have detrimental effects on plant growth and yield. However, certain plant species and ecotypes have developed various mechanisms to adapt to such stress conditions. Recent advances in the understanding of these abiotic stress responses provided the impetus for compiling up-to-date reviews discussing all relevant topics in abiotic stress signaling of plants in a single volume. Topical reviews were prepared by selected experts and contain an introduction, discussion of the state of the art and important future tasks of the particular fields.

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 Maize Research written by Jiban Shrestha and published by Nipa. This book was released on 2023-07-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book uates its readers about the methods and management of livestock during disasters. The book has covered all mad made and natural disasters and their effect on livestock and how they can be managed better for longer survival and help to the humans. Topics on how animals can sense a disaster in advance and what are the common indications given by them and how humans can benefit from it. Book elucidates the management of feeding, feed resources, production and health so as to make the livestock production economical. It is hoped that the compilation will prove useful for the researchers, planners and policy makers to understand the causes for the loss of productivity and health of livestock in drier regions and help in devising management plans towards sustenance and improvement of production.

Download or read book Quantitative Genetics and Crop Breeding written by Thirugnanakumar S and published by New India Publishing Agency. This book was released on 2012-01-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work is unique in that sense it gives formulae along with actual data analyzed for the easy understanding. This book is mainly meant for post graduate and research scholars in Quantitative Genetics. A careful perusal of the book will give clear cut idea about the interpretation of the data and formulation of breeding strategies.

Download or read book Rice Genetics II written by and published by Int. Rice Res. Inst.. This book was released on 1991 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book The Genetics and Exploitation of Heterosis in Crops written by CIMMYT. and published by CIMMYT. This book was released on 1997 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tropical Maize written by R. L. Paliwal and published by Fao. This book was released on 2000 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is an important crop and the demand for as both food and animal feed is expected to grow by 235 million tonnes between now and 2030. In many countries it will be difficult to increase the area under cultivation, so gains will have to come from increased productivity and intensification of the cropping system. This book looks at all aspects of tropical maize production from physiology, growing environments, pest and diseases, plant breeding and crop management and it is a substantial information resource necessary for the development of the crop.

Download or read book Sustainable use of Genetic Diversity in Forage and Turf Breeding written by Christian Huyghe and published by Springer Science & Business Media. This book was released on 2010-06-10 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grassland produces feed for livestock, improves soil fertility and structure, protects water resources and may contribute to climate change mitigation through carbon storage and to biodiversity preservation. It simultaneously maintains sustainable economic outputs for farmers and provides ecosystem services. Turf similarly c- siderably contributes to our environment by adding beauty to our surroundings, providing a safe playing surface for sports and recreation. The species diversity present in most grasslands and turfs is a functional div- sity contributing to the previously mentioned agronomic and environmental bene?ts. The species belong to different functional groups and the adequate species com- sition may maximise the agronomic performance through a higher production and a better quality and the environmental bene?ts through symbiotic nitrogen ?xation or sources of pollen and nectar to pollinators. In a given grassland or turf, the genetic diversity available in each variety contributes to this economic and environmental performance, but also to the stability of these performances including the stability of the resistance against pathogens and pests. Natural grasslands share many species with the sown swards. They may be regarded as favourable sites for in situ preservation of genetic diversity as well as valuable sources of diversity for breeding.

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 Genetics Physiology and Cultivation of Moth Bean Cowpea and Horse Gram written by Rakesh Pathak and published by Springer Nature. This book was released on 2023-05-26 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authored book gives insight into the morphology, physiology, genetics, plant protection and biotechnology of three important arid legumes, viz., moth bean, cowpea and horse gram. There are seven chapters for each crop that provide in-depth information on cultivation, genetic improvement, plant protection measures, management of physiological and abiotic stresses along with related genetic markers and biotechnological advances pertaining to these legumes. The chapters present research findings and brief reviews concerning the advances made in the improvement of these legumes.Legumes are utilized as pulses or grains aiding as an important source of protein for both human and animal consumption and also provide raw materials to the food and feed industries. They are also valuable for soil building, improving soil quality and biological nitrogen fixation. Physiology and genetics provide an inimitable source of information on the distinct aspects of basic and applied legume research for general readers, students, academicians and researchers. Arid legumes are crops characterized by inherent features and capabilities to withstand adverse and harsh climatic conditions, significantly replenish the soil, as well as provide protein and micronutrients. Adaptability to several stresses including drought makes them key to agriculture in areas receiving scanty rainfall. This comprehensive book disseminates significant information on the genetic diversity, cultivation, manipulation through mutagenic techniques, molecular biology and other breeding techniques. The book, therefore, is of importance to teachers, researchers and policymakers who are interested to acquire knowledge about moth bean, cowpea and horse gram. It also serves as an additional reading material for MSc and PhD students of agriculture and environmental sciences. The book is also useful to national and international agricultural scientists and policymakers.

Download or read book Sesame written by Dorothea Bedigian and published by CRC Press. This book was released on 2010-10-14 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive review of sesame and its close relative, Sesame: the genus Sesamum covers ethnographic data, modern use, linguistic analysis of sesame names from around the world, market size, export and import data, geographical sources, use in the food and cosmetic industries, and much more. The book includes a historical review of the genus Sesamum that reveals its place in present-day traditions and cultivation in Africa and Asia. Expanding coverage from archaeological and anthropological literature from India, Mesopotamia, and Egypt, this ethnobotanical monograph draws on folk sources, reviews the phytochemistry of Sesamum, and presents extensive references.