Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Analysis Of Genetic Diversity Among Current Spring Wheat Varieties And Breeding For Improved Yield Stability Of Wheat Triticum Aestivum L PDF full book. Access full book title Analysis Of Genetic Diversity Among Current Spring Wheat Varieties And Breeding For Improved Yield Stability Of Wheat Triticum Aestivum L.
| Author | : Lin Hai |
| Publisher | : |
| Total Pages | : 200 |
| Release | : 2006 |
| Genre | : |
| ISBN | : |
| Author | : Deepak K.R. Baranwal |
| Publisher | : LAP Lambert Academic Publishing |
| Total Pages | : 92 |
| Release | : 2013 |
| Genre | : |
| ISBN | : 9783659430169 |
This is a reference book which describes importance, use and basic information relevant to Wheat and its improvement. In reference to genetic diversity analysis, data was collected for yield and its components and utilized for genetic evaluation of diverse wheat genotypes. The analysis revealed high significant genetic variation for most of the yield components. Recent research findings in wheat improvement aspects have been incorporated in the book. The present research would be fruitful during formulating breeding strategies for wheat improvement. Methodology, experimental findings and their relation with earlier researches has been elaborated in the book. Thousand grain weight, plot yield, grains per spike, tiller per meter and ear length are found key traits for genetic evaluation of wheat genotypes and should be utilized in wheat breeding programmes. Genetic diversity analysis using Cluster and principal component analysis has explored an opportunity to identify diversified genotypes for crop improvement.Present book is basically written for Plant Breeding Scholar and persons interested in Wheat research.
| Author | : Kelly Jean Nightingale |
| Publisher | : |
| Total Pages | : 266 |
| Release | : 1996 |
| Genre | : Wheat |
| ISBN | : |
| Author | : Nusret Zencirci |
| Publisher | : Springer Nature |
| Total Pages | : 268 |
| Release | : 2021-09-15 |
| Genre | : Technology & Engineering |
| ISBN | : 3030773884 |
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.
| Author | : Shabir H Wani |
| Publisher | : Springer Nature |
| Total Pages | : 296 |
| Release | : 2020-12-17 |
| Genre | : Technology & Engineering |
| ISBN | : 3030595773 |
World population is growing at an alarming rate and may exceed 9.7 billion by 2050, whereas agricultural productivity has been negatively affected due to yield limiting factors such as biotic and abiotic stresses as a result of global climate change. Wheat is a staple crop for ~20% of the world population and its yield needs be augmented correspondingly in order to satisfy the demands of our increasing world population. “Green revolution”, the introduction of semi-dwarf, high yielding wheat varieties along with improved agronomic management practices, gave rise to a substantial increase in wheat production and self-sufficiency in developing countries that include Mexico, India and other south Asian countries. Since the late 1980’s, however, wheat yield is at a standoff with little fluctuation. The current trend is thus insufficient to meet the demands of an increasing world population. Therefore, while conventional breeding has had a great impact on wheat yield, with climate change becoming a reality, newer molecular breeding and management tools are needed to meet the goal of improving wheat yield for the future. With the advance in our understanding of the wheat genome and more importantly, the role of environmental interactions on productivity, the idea of genomic selection has been proposed to select for multi-genic quantitative traits early in the breeding cycle. Accordingly genomic selection may remodel wheat breeding with gain that is predicted to be 3 to 5 times that of crossbreeding. Phenomics (high-throughput phenotyping) is another fairly recent advancement using contemporary sensors for wheat germplasm screening and as a selection tool. Lastly, CRISPR/Cas9 ribonucleoprotein mediated genome editing technology has been successfully utilized for efficient and specific genome editing of hexaploid bread wheat. In summary, there has been exciting progresses in the development of non-GM wheat plants resistant to biotic and abiotic stress and/or wheat with improved nutritional quality. We believe it is important to highlight these novel research accomplishments for a broader audience, with the hope that our readers will ultimately adopt these powerful technologies for crops improvement in order to meet the demands of an expanding world population.
| Author | : Conxita Royo |
| Publisher | : CRC Press |
| Total Pages | : 571 |
| Release | : 2005-11-07 |
| Genre | : Science |
| ISBN | : 1482277883 |
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
| Author | : Xianming Chen |
| Publisher | : Springer |
| Total Pages | : 723 |
| Release | : 2017-07-11 |
| Genre | : Science |
| ISBN | : 9402411119 |
This book comprehensively introduces stripe rust disease, its development and its integral control. Covering the biology, genetics, genome, and functional genomics of the pathogen, it also discusses host and non-host resistance, their interactions and the epidemiology of the disease. It is intended for scientists, postgraduates and undergraduate studying stripe rust, plant pathology, crop breeding, crop protection and agricultural science, but is also a valuable reference book for consultants and administrators in agricultural businesses and education.
| Author | : Sudheer Kumar |
| Publisher | : CRC Press |
| Total Pages | : 157 |
| Release | : 2020-04-09 |
| Genre | : Science |
| ISBN | : 0429894074 |
Wheat Blast provides systematic and practical information on wheat blast pathology, summarises research progress and discusses future perspectives based on current understanding of the existing issues. The book explores advance technologies that may help in deciding the path for future research and development for better strategies and techniques to manage the wheat blast disease. It equips readers with basic and applied understanding on the identification of disease, its distribution and chances of further spread in new areas, its potential to cause yield losses to wheat, the conditions that favour disease development, disease prediction modelling, resistance breeding methods and management strategies against wheat blast. Features: Provides comprehensive information on wheat blast pathogen and its management under a single umbrella Covers disease identification and diagnostics which will be helpful to check introduction in new areas Discusses methods and protocol to study the different aspects of the disease such as diagnostics, variability, resistance screening, epiphytotic creation etc. Gives deep insight on the past, present and future outlook of wheat blast research progress This book’s chapters are contributed by experts and pioneers in their respective fields and it provides comprehensive insight with updated findings on wheat blast research. It serves as a valuable reference for researchers, policy makers, students, teachers, farmers, seed growers, traders, and other stakeholders dealing with wheat.
| Author | : Alain P. Bonjean |
| Publisher | : Intercept Limited |
| Total Pages | : 1131 |
| Release | : 2001-01 |
| Genre | : Nature |
| ISBN | : 9781898298724 |
This work is a comprehensive history of wheat across all its main areas of production. New techniques such as in vitro culture now enable the development of a greater level of understanding of the genetics of wheat.
| Author | : Megan Johanna Lewien |
| Publisher | : |
| Total Pages | : 208 |
| Release | : 2017 |
| Genre | : |
| ISBN | : |
By 2050 global demand for wheat (Triticum aestivum L.) is predicted to grow by 60%. To meet this demand, annual genetic gains must increase by 1.4%, and withstand increasing environmental stresses. The goal of the work herein was to use new phenomic, genomic and molecular tools to identify novel genomic regions associated with eyespot (Oculimacula yallundae and O. acuformis) disease resistance, drought tolerance and yield stability. To identify novel genomic regions associated with eyespot resistance in winter wheat, disease susceptibility was evaluated in two PNW winter wheat panels (n= 469, 399) and genome-wide association mapping was conducted. Of the 92 marker trait associations identified, the seven most significant cumulatively reduced eyespot disease response. As breeding lines were used, the results can be used for rapid introgression of resistance alleles into elite lines. The second objective of this work was to evaluate phenotypic associations of physiological traits and yield under rain-fed conditions to identify traits for use in breeding. 700 lines of the spring wheat nested association mapping panel were evaluated for water use efficiency, plant water status, photosynthetic and photoprotective mechanisms and grain yield over three years. Six traits had a cumulative effect on increasing yield: plant water status, plant height, photosynthetic capacity, vegetative green index, water used efficiency and days from sowing to heading. The physiological traits identified can be used to improve selection efficiency and yield stability under variable rain-fed conditions. The third objective of this work was to identify genomic regions associated with the water-use efficiency, plant water status, leaf health and photosynthesis. 650 lines of the spring wheat NAM panel were evaluated for these traits and grain yield under rain-fed conditions and joint inclusive composite interval mapping and genome-wide association analysis was conducted. The seven most significant grain yield QTL identified, located on chromosomes 1A, 1B, 2B, 4B, 5B, and 7B, were found in multiple environments and were associated with multiple physiological traits. This study helps reveal the genetic architecture of drought tolerance and grain yield and can be used to improve the efficiency of breeding under variable water-limited conditions.
