Author: S.M. Jain Publisher: Springer Science & Business Media ISBN: 9401591253 Category : Science Languages : en Pages : 615
Book Description
Genetic variability is an important parameter for plant breeders in any con ventional crop improvement programme. Very often the desired variation is un available in the right combination, or simply does not exist at all. However, plant breeders have successfully recombined the desired genes from cultivated crop gerrnplasm and related wild species by sexual hybridization, and have been able to develop new cultivars with desirable agronomie traits, such as high yield, disease, pest, and drought resistance. So far, conventional breeding methods have managed to feed the world's ever-growing population. Continued population growth, no further scope of expanding arable land, soil degradation, environ mental pollution and global warrning are causes of concern to plant biologists and planners. Plant breeders are under continuous pressure to improve and develop new cultivars for sustainable food production. However, it takes several years to develop a new cultivar. Therefore, they have to look for new technologies, which could be combined with conventional methods to create more genetic variability, and reduce the time in developing new cultivars, with early-maturity, and improved yield. The first report on induced mutation of a gene by HJ. Muller in 1927 was a major mi1estone in enhancing variation, and also indicated the potential applica tions of mutagenesis in plant improvement. Radiation sources, such as X-rays, gamma rays and fast neutrons, and chemical mutagens (e. g. , ethyl methane sulphonate) have been widely used to induce mutations.
Author: G. Kalloo Publisher: Springer Science & Business Media ISBN: 3642842755 Category : Science Languages : en Pages : 358
Book Description
The esculent Lycopersicon esculentum, long thought to be poisonous, has become a major U. S. food crop and source of vitamins and minerals, thanks largely to genetic modification and new production technology Rick (1978) Tomato (Lycopersicon esculentum Mill. ) is one of the most important solana ceous vegetable crops grown worldwide under outdoor and indoor conditions. It has become an important commercial crop so far as the area, production, industrial values and its contribution to human nutrition is concerned. During the past few decades tremendous developments have contributed to the knowledge and understanding of various areas of genetics, breeding and biotechnology and voluminous literature has been generated. The purpose of preparing this monograph is to give a comprehensive up-to-date treatment to the various aspects of genetic improvement of tomato. The emphasis has been placed on cytology, classical and molecular genetics, reproductive biology, germplasm resources, hybrid seed production, use of wild taxa, selection/ breeding methods, breeding for abiotic and biotic stresses, processing and quality breeding, improvement for mechanical harvesting, and biotechnology: tissue culture, protoplast fusion, and genetic transformation. These topics are presented in 22 different chapters. However, a few aspects have been discussed in more than one chapter. For example, seed production is treated in chapters 1, 4 and 8; molecular biology/genetic engineering in chapters 3 and 22 and heterosis in chapters 8 and 16.
Author: Indra Asil Publisher: Elsevier ISBN: 0323156509 Category : Science Languages : en Pages : 313
Book Description
Plant Improvement and Somatic Cell Genetics includes all but one of the papers presented at two symposia held during the XIII International Botanical Congress in Sydney, Australia, on August 21-28, 1981. ""Frontiers in Plant Breeding"" and ""Cell Culture and Somatic Cell Genetics in Plant Biology"" highlight the ways in which plant breeding techniques can improve crops. The book explores the potentials as well as the limitations of plant breeding, and cellular and molecular techniques in plant improvement. Comprised of 14 chapters, this volume begins with an overview of the potential applications of exotic germplasm for tomato and cereal crop improvement. It continues with a discussion of multiline breeding, breeding of crop plants that can tolerate soil stresses, combining genomes by means of conventional methods, use of embryo culture in interspecific hybridization, use of haploids in plant improvement, and somaclonal variation and somatic hybridization as new techniques for plant improvement. The reader is also introduced to plant cell culture, as well as somatic cell genetics of cereals and grasses, somatic cell fusion for inducing cytoplasmic exchange, uses of cell culture mutants, genetic transformation of plant cells by experimental procedures in the context of plant genetic engineering, and use of molecular biology techniques for recognition and modification of crop plant genotypes. This book will be a useful resource for scientists and plant breeders interested in applying somatic cell genetics for crop improvement.
Author: M K Razdan Publisher: CRC Press ISBN: 1578081793 Category : Technology & Engineering Languages : en Pages : 666
Book Description
Potato is the most significant non-cereal crop. Much attention has been paid to this commercially important crop. The aim of this volume is to capture the recent advances made in improving potatoes using traditional breeding methods as well as genetic engineering technology. The book provides a critical appraisal of the state-of-the-art finding on this crop.
Author: M. Ashraf Publisher: CRC Press ISBN: 1482293609 Category : Science Languages : en Pages : 760
Book Description
Gain a better understanding of the genetic and physiological bases of stress response and stress tolerance as part of crop improvement programs Abiotic Stresses: Plant Resistance Through Breeding and Molecular Approaches explores innovative methods for breeding new varieties of major crops with resistance to environmental stresses that l
Author: Alan C. Cassells Publisher: Springer Science & Business Media ISBN: 9401103577 Category : Science Languages : en Pages : 461
Book Description
A range of novel techniques is available to the plant breeder today to complement classical breeding methods. The new options are based on the integration of advances in plant cell biology with those in plant molecular biology. Plant cell, tissue and organ cultures provide efficient systems for transformation, for the achievement of wide crosses and for the production of variation through spontaneous and induced mutation, while permitting effective isolation of desired genotypes by in vitro selection. This book presents a critical appraisal of the methodologies of plant genetic manipulation for advanced undergraduates, postgraduates, researchers and plant breeders, and provides guidance on the choice of breeding options. The latter depends on the breeding system of the crop, the breeding objective and the tissue culture systems applicable to the target genotype(s).
Author: Satbir Singh Gosal Publisher: Springer Nature ISBN: 3030472981 Category : Science Languages : en Pages : 457
Book Description
Plant improvement has shifted its focus from yield, quality and disease resistance to factors that will enhance commercial export, such as early maturity, shelf life and better processing quality. Conventional plant breeding methods aiming at the improvement of a self-pollinating crop, such as wheat, usually take 10-12 years to develop and release of the new variety. During the past 10 years, significant advances have been made and accelerated methods have been developed for precision breeding and early release of crop varieties. This edited volume summarizes concepts dealing with germplasm enhancement and development of improved varieties based on innovative methodologies that include doubled haploidy, marker assisted selection, marker assisted background selection, genetic mapping, genomic selection, high-throughput genotyping, high-throughput phenotyping, mutation breeding, reverse breeding, transgenic breeding, shuttle breeding, speed breeding, low cost high-throughput field phenotyping, etc. It is an important reference with special focus on accelerated development of improved crop varieties.
Author: S.M. Jain
Author: Eucarpia. Tomato Working Group. Meeting
Author: G. Kalloo
Author: Indra Asil
Author: M K Razdan
Author: M. Ashraf
Author: 
Author: Alan C. Cassells
Author: Satbir Singh Gosal
Author: Eucarpia. Tomato Working Group. Meeting