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Studies On Genetic Diversity And Inter Relationship Among Yield And Quality Traits In Bread Wheat
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Book Synopsis Studies on Genetic Diversity and Inter-relationship Among Yield and Quality Traits in Bread Wheat by : Deepak Kumar Yadav
Download or read book Studies on Genetic Diversity and Inter-relationship Among Yield and Quality Traits in Bread Wheat written by Deepak Kumar Yadav and published by . This book was released on 2004 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Diversity Studies for Some Physical and Yield and Its Component Traits in Bread Wheat (Triticum Aestivum L. Em. Thell) Under Late Sown Conditions by : M. S. Khumkar
Download or read book Genetic Diversity Studies for Some Physical and Yield and Its Component Traits in Bread Wheat (Triticum Aestivum L. Em. Thell) Under Late Sown Conditions written by M. S. Khumkar and published by . This book was released on 1999 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Durum Wheat Breeding by : Conxita Royo
Download or read book Durum Wheat Breeding written by Conxita Royo and published by CRC Press. This book was released on 2005-11-07 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is your knowledge about this important grain crop up to date? This comprehensive two-volume resource reviews the latest advances in scientific and technical knowledge for durum wheat breeding. With a scope of coverage that includes genetics and molecular biology, plant and crop physiology, and breeding strategies and methodology, Dur
Book Synopsis Advances in Wheat Genetics: From Genome to Field by : Yasunari Ogihara
Download or read book Advances in Wheat Genetics: From Genome to Field written by Yasunari Ogihara and published by Springer. This book was released on 2015-09-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings is a collection of 46 selected papers that were presented at the 12th International Wheat Genetics Symposium (IWGS). Since the launch of the wheat genome sequencing project in 2005, the arrival of draft genome sequences has marked a new era in wheat genetics and genomics, catalyzing rapid advancement in the field. This book provides a comprehensive review of the forefront of wheat research, across various important topics such as germplasm and genetic diversity, cytogenetics and allopolyploid evolution, genome sequencing, structural and functional genomics, gene function and molecular biology, biotic stress, abiotic stress, grain quality, and classical and molecular breeding. Following an introduction, 9 parts of the book are dedicated to each of these topics. A final, 11th part entitled “Toward Sustainable Wheat Production” contains 7 excellent papers that were presented in the 12th IWGS Special Session supported by the OECD. With rapid population growth and radical climate changes, the world faces a global food crisis and is in need of another Green Revolution to boost yields of wheat and other widely grown staple crops. Although this book focuses on wheat, many of the newly developed techniques and results presented here can be applied to other plant species with large and complex genomes. As such, this volume is highly recommended for all students and researchers in wheat sciences and related plant sciences and for those who are interested in stable food production and food security.
Book Synopsis Guide to Bread Wheat Breeding at CIMMYT by : Maarten van Ginkel
Download or read book Guide to Bread Wheat Breeding at CIMMYT written by Maarten van Ginkel and published by CIMMYT. This book was released on 1998 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study on Yield Related Traits in Wheat by : Obaidullah Khan
Download or read book Study on Yield Related Traits in Wheat written by Obaidullah Khan and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Need for the improvement in wheat yield is increasing continuously due to day by day increase in human population on the same land. This challenge is much greater in the developing countries than the developed world. Many breeding programs are based on selection of desirable parents for hybridization that's the main source to create genetic variation which is heritable to offspring. This study was carried out to have information on the magnitude of heritability and genetic advance of various important wheat parameters as it plays an important role for planning breeding strategy. For this purpose second filial (F2) generation of ten cross combinations involving seven wheat varieties/genotypes were studied. These were planted in field in a Randomized Complete Block Design with three replications. At maturity 200 plants from each cross and 20 plants from each parent were taken and data were recorded. The information derived will be very helpful to make improvement in wheat yield through reliable selection as it is suggested that varieties/genotypes showing good results should be given due importance in future breeding programs.
Book Synopsis Breeding Field Crops by : John M. Poehlman
Download or read book Breeding Field Crops written by John M. Poehlman and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: While preparing the first edition of this textbook I attended an extension short course on writing agricultural publications. The message I remember was "select your audience and write to it. " There has never been any doubt about the audience for which this textbook was written, the introductory course in crop breeding. In addition, it has become a widely used reference for the graduate plant-breeding student and the practicing plant breeder. In its prepa ration, particular attention has been given to advances in plant-breeding theo ry and their utility in plant-breeding practice. The blend of the theoretical with the practical has set this book apart from other plant-breeding textbooks. The basic structure and the objectives of the earlier editions remain un changed. These objectives are (1) to review essential features of plant re production, Mendelian genetic principles, and related genetic developments applicable in plant-breeding practice; (2) to describe and evaluate established and new plant-breeding procedures and techniques, and (3) to discuss plant breeding objectives with emphasis on the importance of proper choice of objec tive for achieving success in variety development. Because plant-breeding activities are normally organized around specific crops, there are chapters describing breeding procedures and objectives for the major crop plants; the crops were chosen for their economic importance or diversity in breeding sys tems. These chapters provide a broad overview of the kinds of problems with which the breeder must cope.
Book Synopsis Wheat Landraces by : Nusret Zencirci
Download or read book Wheat Landraces written by Nusret Zencirci and published by Springer Nature. This book was released on 2021-09-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landraces possess a very large genetic base in population structure and are dynamic populations of cultivated plants with historical origin, distinct identity, and without any formal crop improvement. They are often genetically diverse, locally adapted, and associated with traditional farming systems. Resistance genes to biotic and abiotic stress factors, which are especially diversified in landraces, are of great interest to plant breeders, faced with global climate challenge. In addition, gene pools made of different landraces grown in different ecological conditions can be used for wheat breeding to enhance quality; yield and other desirable agricultural parameters. An estimated 75% of the genetic diversity of crop plants was lost in the last century due to the replacement of high yielding modern varieties. There is, thus, an urgent need to preserve existing species, not only for posterity but also as a means to secure food supply for a rising world population. In this book, we provide an overview of wheat landraces with special attention to genetic diversities, conservation, and utilization.
Book Synopsis Statistical Procedures for Agricultural Research by : Kwanchai A. Gomez
Download or read book Statistical Procedures for Agricultural Research written by Kwanchai A. Gomez and published by John Wiley & Sons. This book was released on 1984-02-17 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here in one easy-to-understand volume are the statistical procedures and techniques the agricultural researcher needs to know in order to design, implement, analyze, and interpret the results of most experiments with crops. Designed specifically for the non-statistician, this valuable guide focuses on the practical problems of the field researcher. Throughout, it emphasizes the use of statistics as a tool of research—one that will help pinpoint research problems and select remedial measures. Whenever possible, mathematical formulations and statistical jargon are avoided. Originally published by the International Rice Research Institute, this widely respected guide has been totally updated and much expanded in this Second Edition. It now features new chapters on the analysis of multi-observation data and experiments conducted over time and space. Also included is a chapter on experiments in farmers' fields, a subject of major concern in developing countries where agricultural research is commonly conducted outside experiment stations. Statistical Procedures for Agricultural Research, Second Edition will prove equally useful to students and professional researchers in all agricultural and biological disciplines. A wealth of examples of actual experiments help readers to choose the statistical method best suited for their needs, and enable even the most complicated procedures to be easily understood and directly applied. An International Rice Research Institute Book
Book Synopsis Principles and Procedures of Plant Breeding by : G. S. Chahal
Download or read book Principles and Procedures of Plant Breeding written by G. S. Chahal and published by Alpha Science Int'l Ltd.. This book was released on 2002 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alternate approaches for the exploitation of heterosis and population improvement have been elaborated with the help of schematic diagrams.
Book Synopsis Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat by : Madhav Bhatta
Download or read book Identification of Genes/Genomic Regions Controlling Resistance to Biotic and Abiotic Stresses in Synthetic Hexaploid Wheat written by Madhav Bhatta and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic hexaploid wheat (SHW; 2n=6x=42, AABBDD, Triticum aestivum L.) is produced from an interspecific cross between durum wheat (2n=4x=28, AABB, T. turgidum L.) and goat grass (2n=2x=14, DD, Aegilops tauschii Coss.). It is reported to have a considerable amount of genetic diversity and is a potential source of novel alleles controlling abiotic and biotic stresses resistance and improving wheat quality. Therefore, the first study was to understand the genetic diversity and population structure of SHWs and compare the genetic diversity of SHWs with elite bread wheat (BW) cultivars. The result of this study identified a wide range of genetic diversity within the SHWs. The genetic diversity of the ABD and D-genome of SHWs were 50% and 88.2%, respectively, higher than that found on the respective genome in a sample of elite BW cultivars. The second study was to identify novel genomic regions and underlying genes associated with grain yield and yield-related traits under two drought-stressed environments. This study identified 90 novel genomic regions and haplotype blocks associated with improving grain yield and yield-related traits with phenotypic variance explained of up to 32.3%. The third study was to identify common bunt resistance genotypes, genomic regions and underlying genes conferring resistance to common bunt. This study identified 29 resistant SHWs and 15 genomic regions (five were novel) conferring resistance to common bunt. The fourth study to explore the genetic variation of 10-grain minerals (Ca, Cd, Co, Cu, Fe, Li, Mg, Mn, Ni, and Zn) and grain protein concentration (GPC); identify marker-trait associations and candidate genes associated with grain minerals using a genome-wide association study (GWAS). A wide range of genetic variation identified within SHWs for GPC and grain mineral concentrations. A GWAS identified 92 genomic regions (60 were novel and 40 were within genes) associated with increasing beneficial grain mineral concentration and decreasing concentration of toxic compound such as Cd. The results from this research will be valuable for broadening the genetic base of wheat and could assist in further understanding of the genetic architecture of traits under biotic and abiotic stresses.
Book Synopsis Genetic Diversity and Effects of Selective Intermating on Genetic Variability in Bread Wheat (Triticum Aestivum L. Em. Thell) [With CD Copy] by : Preeti
Download or read book Genetic Diversity and Effects of Selective Intermating on Genetic Variability in Bread Wheat (Triticum Aestivum L. Em. Thell) [With CD Copy] written by Preeti and published by . This book was released on 2018 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cereal Genomics by : Pushpendra K. Gupta
Download or read book Cereal Genomics written by Pushpendra K. Gupta and published by Springer Science & Business Media. This book was released on 2006-01-19 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cereals make an important component of daily diet of a major section of human population, so that their survival mainly depends on the cereal grain production, which should match the burgeoning human population. Due to painstaking efforts of plant breeders and geneticists, at the global level, cereal production in the past witnessed a steady growth. However, the cereal production in the past has been achieved through the use of high yielding varieties, which have a heavy demand of inputs in the form of chemical fertilizers, herbicides and insecticides/pesticides, leading to environmental degradation. In view of this, while increasing cereal production, one also needs to keep in mind that agronomic practices used for realizing high productivity do not adversely affect the environment. Improvement in cereal production in the past was also achieved through the use of alien genetic variation available in the wild relatives of these cereals, so that conservation and sustainable use of genetic resources is another important area, which is currently receiving the attention of plant breeders. The work leading to increased cereal production in the past received strong support from basic research on understanding the cereal genomes, which need to be manipulated to yield more from low inputs without any adverse effects as above. Through these basic studies, it also became fairly apparent that the genomes of all cereals are related and were derived from the same lineage, million of years ago.
Book Synopsis Genetic and Genomic Tools for Improving End-use Quality in Wheat by : Emily Elizabeth Delorean
Download or read book Genetic and Genomic Tools for Improving End-use Quality in Wheat written by Emily Elizabeth Delorean and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat accounts for 20% of daily caloric intake of the world population and has one of the widest cultivation distributions of any crop. With increasing demand for both quantity and quality, wheat yields must increase while also maintaining acceptable end-use quality. However, measuring end-use quality is complex, requires large volumes grain and significant effort. The overarching goal of this dissertation research was to develop genetic and genomic tools to facilitate breeding for end-use quality in wheat. Building on initial work with genomic prediction of wheat quality, we continued application of genomic prediction models to the International Maize and Wheat Improvement Center (CIMMYT) wheat breeding program. For practical application in the breeding program to advance selection, we focused on forward prediction in each cycle of the bread wheat program. Models were built on 12 years of past data including over 18,000 entries with quality data. Predictions for 10,000 yield trial lines were generated each year for selection, with forward prediction accuracies of 0.40 to 0.73, and approached heritability. This is one of the largest scale applications of genomic selection. We also studied the interaction of climate change and the important quality genes, high-molecular weight glutenins (HMW-GS) and low-molecular weight glutenins (HMW-GS). A diverse panel of 54 CIMMYT wheat varieties were grown in 2 levels of drought stress, heat stress and optimal growth conditions. Quality traits, HMW-GS and LMW-GS alleles were measured. We fit a mixed linear model for each quality trait with HMW-GS, LMW-GS, environment, and the interactions of those as predictors. Overall, the superior glutenin alleles either maintained or increased quality in stressful environments. This work confirmed that superior alleles should always be selected for, regardless of target environment. To increase the genetic diversity for wheat quality, we analyzed Glu-D1 gene diversity on the wheat D genome donor, Aegilops tauschii. We constructed Glu-D1 molecular haplotypes from sequence data of 234 Ae. tauschii accessions and found 15 subclades and over 45 haplotypes, representing immense gene diversity. We found evidence that the 5+10 allele originated from a newly described Lineage 3 of Ae. tauschii, further supporting that this unique lineage contributed to modern bread wheat. We also observed rare recombinant haplotypes between the x and y subunits of any HMW-GS locus. This work will facilitate incorporation of Ae. tauschii Glu-D1 alleles into modern wheat. Given that certain HMW-GS alleles are highly desirable, we set out to develop a high-throughput, high resolution genotyping method for HMW-GS alleles that would fit within genotyping already done for genomic prediction models. This 'sequence based genotyping' approach uses diagnostic k-mers developed to predict alleles in skim-sequenced breeding material. Prediction accuracies for Glu-D1 and Glu-A1 were very good, but lower for the Glu-B1 alleles where many alleles are highly related. Overall, SBG offers a high throughput method to call alleles from existing data. These genetic and genomic tools developed and implemented for end-use quality selection in wheat offer promising resources for continued improvement of both yield and quality in wheat breeding.
Book Synopsis Genetic Dissection of Grain Weight & Related Traits in Bread Wheat by : Reyazul Rouf Mir
Download or read book Genetic Dissection of Grain Weight & Related Traits in Bread Wheat written by Reyazul Rouf Mir and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this manuscript, we have used for the first time two important approaches of genetic dissection (QTL interval mapping and association mapping) together for the study of marker-trait associations for the identification of molecular markers associated with a variety of economically important traits with emphasis on grain weight (GW)in bread wheat. We mainly focused on the following aspects: (i) Preparation of whole-genome framework linkage map of an intervarietal RIL mapping population developed specifically for GW and derived from the cross Chinese Spring x Rye Selection 111 . (ii) Single-locus QTL analysis (interval mapping) for GW (including other grain traits), and other agronomically important traits using the above RIL mapping population. (iii) Study of QTL x QTL epistatic interactions and QTL x environment interactions using two-locus QTL analysis. (iv) Study of genetic diversity and population structure of a collection of elite Indian bread wheat cultivars. (v) Association mapping of GW and other agronomically important traits using above collection of elite Indian bread wheat cultivars."
Book Synopsis Inter-relationships, Stability and Molecular Diversity Analysis for Quality, Yield and Yield Components in New Plant Type (NPT) Wheat Derivatives by : Suneetha Kota
Download or read book Inter-relationships, Stability and Molecular Diversity Analysis for Quality, Yield and Yield Components in New Plant Type (NPT) Wheat Derivatives written by Suneetha Kota and published by . This book was released on 2009 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wheat written by E H Satorre and published by CRC Press. This book was released on 1999-05-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussing the latest processes involved in researching yield generation, Wheat: Ecology and Physiology of Yield Determination will help you design various types of crop production systems for maximum yield. Featuring information on developing high-yielding, low-input, and quality-oriented systems, this book offers you both physiological and ecological approaches that will help you understand the crop as well as increase its production. Discussing aspects of wheat growth for specific regions around the world, Wheat provides you with information that will improve the size and quality of your crops, including: how temperature, vernalization, and the photoperiod affect the development of wheat using the correct amount of nitrogen fertilizers for wheat crops an explanation of the reproduction and nitrogen cycles of wheat how elements and conditions such as lipids, proteins, nitrogen, and climate enhance grain quality estimating and determining optimal sowing dates examining factors that may affect wheat yield-density relationships, such as planting arrangement and date of sowing preventing seed decay and examining effects of mildews and leaf blights examining historical trends of the crop to see what further research needs to be done You'll also receive information on the genetic gains in wheat research that are improving the physiological traits and numerical components of this essential grain. Within Wheat, you'll find data and methods from international experts in the field that will improve the yield and growth of the world's most important crop.
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