-PDF Download- Distant Hybridization Of Crop Plants EBOOK

Distant Hybridization of Crop Plants

Author: G. Kalloo

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 282

ISBN-13: 3642843069

Wild taxa are invaluable sources of resistance to diseases, insects/ pests, nematodes, temperature extremes, salinity and alkalinity stresses, and also of nutritional quality; adaptation; genetic diversity and new species. Utilization of wild relatives of a crop depends largely upon its crossability relations with cultivated varieties. Sev eral wild species are not crossable with the commercial cultivars due to various isolation barriers. Furthermore, in a few cases, hybridiza tion is possible only in one direction and reciprocal crosses are not successful, thus depriving the utilization of desired cytoplasm of many species. However, techniques have been developed to over come many barriers and hybrid plants are produced. New crop species have been developed by overcoming the F 1 sterility and producing amphidiploids and such crops are commercially being grown in the field. The segregation pattern ofF 1 hybrids produced by distant hybridization in segregating generations are different from the intervarietal hybrids. In former cases, generally, unidirectional segregation takes place in early generations and accordingly, selec tion procedures are adopted. In most of the cases, backcross or modified backcross methods have been followed to utilize wild species, and thus numerous types of resistance and other economical attributes have been transferred in the recurrent parents. Protoplast fusion has been amply demonstrated in a number of cases where sexual hybridization was not possible and, as a result, hybrids have been produced.

Polyploidy and Hybridization for Crop Improvement

Author: Annaliese S. Mason

Publisher: CRC Press

Published: 2017-11-22

Total Pages: 337

ISBN-13: 1315352265

DOWNLOAD EBOOK →

Many of our current agricultural crops are natural or agricultural hybrids (between two or more species), or polyploids (containing more than one genome or set of chromosomes). These include potato, oats, cotton, oilseed rape, wheat, strawberries, kiwifruit, banana, seedless watermelon, triticale and many others. Polyploidy and hybridization can also be used for crop improvement: for example, to introgress disease resistance from wild species into crops, to produce seedless fruits for human consumption, or even to create entirely new crop types. Some crop genera have hundreds of years of interspecific hybridization and ploidy manipulation behind them, while in other genera use of these evolutionary processes for crop improvement is still at the theoretical stage. This book brings together stories and examples by expert researchers and breeders working in diverse crop genera, and details how polyploidy and hybridization processes have shaped our current crops, how these processes have been utilized for crop improvement in the past, and how polyploidy and interspecific hybridization can be used for crop improvement in the future.

Breeding Oilseed Brassicas

Author: Kuldeep S. Labana

Publisher: Springer Science & Business Media

Published: 2013-11-09

Total Pages: 268

ISBN-13: 366206166X

DOWNLOAD EBOOK →

The present status of rapeseed-mustard crops as the third most important source of edible oils is attributable to the success of plant breeders and associate researchers in developing high yielding varieties with improved quality and resistance to biotic and abiotic stresses. However, the need to maximize the production gains and quality at lower economic costis greater than ever before. "Breeding Oilseed Brassicas" was thus conceived to review the past accomplishments in order to identify research gaps and suggest ways and means to meet the challenge of sustainable productivity upgradation. Theoretical and applied aspects ofbreeding, genetics, cytogenetics, crop physiology, and biotechnology are covered. The emphasis is on the application of theoretical knowledge to the solution of problems that confront the Brassica breeders.

Hybridization of Crop Plants

Author: Henry Hultman Hadley

Publisher: American Society of Agronomy

Published: 1980

Total Pages: 850

ISBN-13:

DOWNLOAD EBOOK →

Distant Hybridization in Horticultural Crops

Author: M. R. Dinesh

Publisher:

Published: 2017

Total Pages: 289

ISBN-13: 9789351248293

DOWNLOAD EBOOK →

Distant Hybridization in Horticultural Crops

Author: M. R. Dinesh

Publisher:

Published: 2018

Total Pages:

ISBN-13: 9789386615695

DOWNLOAD EBOOK →

Global climate is considered to be biggest challenge to the agricultural/horticultural scientists because of the need for development of climate resilient crop varieties. It has also been felt that there is a need to double the present production of fruits and vegetables to over 500 million by 2050 and to meet the growing demand of all other horticultural commodities. The presence of narrow genetic base in cultivated species is one of the major impediments for the plant breeder to develop variety/varieties for wide adaptability and yield. Hence, the utilization of wild relatives and land races in breeding programmes is the need of hour as the reservoirs of potential genes, which can be transferred to the cultivated species through hybridization. Several studies have proved that there is pre and post fertilization barriers which can be overcome through techniques such as embryo rescue, protoplast fusion, alien addition lines, alien substitution lines and ploidy manipulations, etc. The wide hybridization has been proved to be a potential method for developing many stable varieties, which can withstand various biotic and abiotic stresses. Developed and commercialized several intergeneric and interspecific hybrids in fruits, vegetables, flowers, plantation crops medicinal and aromatic plants across the globe. This book would be a valuable documents to the policy makers, researchers and more precisely to the students who are interested in pursuing the higher studies in the field of distant hybridization in horticultural crops.

Alien Gene Transfer in Crop Plants, Volume 1

Author: Aditya Pratap

Publisher: Springer Science & Business Media

Published: 2013-11-01

Total Pages: 323

ISBN-13: 1461485851

DOWNLOAD EBOOK →

Genetic engineering and biotechnology along with conventional breeding have played an important role in developing superior cultivars by transferring economically important traits from distant, wild and even unrelated species to the cultivated varieties which otherwise could not have been possible with conventional breeding. There is a vast amount of literature pertaining to the genetic improvement of crops over last few decades. However, the wonderful results achieved by crop scientists in food legumes’ research and development over the years are scattered in different journals of the World. The two volumes in the series ‘Alien Gene Transfer in Crop Plants’ address this issue and offer a comprehensive reference on the developments made in major food crops of the world. These volumes aim at bringing the contributions from globally renowned scientists at one platform in a reader-friendly manner. The 1st volume entitled, ‘Alien Gene Transfer in Crop Plants: Innovations, Methods and Risk Assessment” will deal exclusively with the process and methodology. The contents of this volume have been designed to appraise the readers with all the theoretical and practical aspects of wide hybridization and gene transfer like processes and methods of gene transfer, role of biotechnology with special reference to embryo rescue, genetic transformation, protoplast fusion and molecular marker technology, problems such as cross incompatibility and barriers to distant hybridization and solutions to overcome them. Since wild and weedy relatives of crop plants may have negative traits associated with them, there are always possibilities of linkage drag while transferring alien alleles. Therefore, problems and limitations of alien gene transfer from these species will also be discussed in this series. Further, the associated risks with this and assessment of risks will also be given due weightage.

Pollen Biotechnology for Crop Production and Improvement

Author: K. R. Shivanna

Publisher: Cambridge University Press

Published: 2005-09-15

Total Pages: 468

ISBN-13: 9780521019750

DOWNLOAD EBOOK →

Our knowledge of pollen, the gold dust that carries the male germ line of flowering plants and is vital for sexual reproduction and seed formation, has 'come of age' with the publication of this book. Here, for the first time in a single volume, are all the ideas and techniques developed in the last two decades concerning the manipulation of pollen and pollen tubes in plant breeding and biotechnology. Pollen has never been an easy topic to come to grips with, with its variable and often inexplicable terminology that has made it a more difficult field in which to work. This book will remedy that, with its overview of pollen biology and pollen-pistil interactions that explains terms and concepts of the male function of pollen in a way that is readily understandable to the student and professional plant scientist and plant breeder.

PLANT BREEDING: Classical to Modern

Author: P. M. Priyadarshan

Publisher: Springer Nature

Published: 2019-11-09

Total Pages: 570

ISBN-13: 9811370958

DOWNLOAD EBOOK →

This book offers a detailed overview of both conventional and modern approaches to plant breeding. In 25 chapters, it explores various aspects of conventional and modern means of plant breeding, including: history, objective, activities, centres of origin, plant introduction, reproduction, incompatibility, sterility, biometrics, selection, hybridization, methods of breeding both self- and cross- pollinated crops, heterosis, synthetic varieties, induced mutations and polyploidy, distant hybridization, quality breeding, ideotype breeding, resistance breeding, breeding for stress resistance, G x E interactions, tissue culture, genetic engineering, molecular breeding, genomics, gene action and varietal release. The book’s content addresses the needs of students worldwide. Modern methods like molecular breeding and genomics are dealt with extensively so as to provide a firm foundation and equip readers to read further advanced books. Each chapter discusses the respective subject as comprehensively as possible, and includes a section on further reading at the end. Info-boxes highlight the latest advances, and care has been taken to include nearly all topics required under the curricula of MS programs. As such, the book provides a much-needed reference guide for MS students around the globe.

Plant Breeding and Cultivar Development

Author: D. P. Singh

Publisher: Academic Press

Published: 2021-01-21

Total Pages: 663

ISBN-13: 0128175648

DOWNLOAD EBOOK →

Plant Breeding and Cultivar Development features an optimal balance between classical and modern tools and techniques related to plant breeding. Written for a global audience and based on the extensive international experience of the authors, the book features pertinent examples from major and minor world crops. Advanced data analytics (machine learning), phenomics and artificial intelligence are explored in the book's 28 chapters that cover classical and modern plant breeding. By presenting these advancements in specific detail, private and public sector breeding programs will learn about new, effective and efficient implementation. The insights are clear enough that non-plant breeding majoring students will find it useful to learn about the subject, while advanced level students and researchers and practitioners will find practical examples that help them implement their work. Bridges the gap between conventional breeding practices and state-of-the-art technologies Provides real-world case studies of a wide range of plant breeding techniques and practices Combines insights from genetics, genomics, breeding science, statistics, computer science and engineering for crop improvement and cultivar development