Adapting Cereal Grain Crops To Drought Stress
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| Author | : Huijun Duan |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2020 |
| Genre | : Electronic books |
| ISBN | : |
Among other environmental instabilities, drought stress is the primary limitation to cereal crops growth, development and productivity. In the context of continuing global climate change, breeding of drought resistant crop cultivars is the most economical, effective and sustainable strategy for adapting the crop production system and ensuring food security for the growing human population. Additionally, there is need for improving management practices. Whereas conventional breeding has sustained crop productivity gains in the past century, modern technological advancements have revolutionized our identification of important drought tolerance genes and underlying mechanisms, and accelerated new cultivar development. Large-scale high throughput sequencing, phenotyping, ,Äòomics,Äô and systems biology, as well as marker assisted and quantitative trait loci mapping based breeding approaches have offered significant insights into crop drought stress tolerance and provided some new tools for crop improvement. Despite this significant progress in elucidating the mechanisms underlying drought tolerance, considerable challenges remain and our understanding of the crop drought tolerance mechanisms is still abstract. In this chapter, therefore, we highlight current progress in the identification of drought tolerance genes and underlying mechanisms, as well as their practical applications. We then offer a holistic approach for cereal crops adaptation to future climate change exacerbated drought stress.
| Author | : Jean-Marcel Ribaut |
| Publisher | : CRC Press |
| Total Pages | : 696 |
| Release | : 2006-09-08 |
| Genre | : Technology & Engineering |
| ISBN | : 9781560222781 |
Learn how to best improve yield in cereal plants—even in dry conditions The impact of drought on crop production can be economically devastating. Drought Adaptation in Cereals provides a comprehensive review of the latest research on the tolerance of cereal crops to water-limited conditions. Renowned experts extensively describe basic concepts and cutting-edge research results to clearly reveal all facets of drought adaptation in cereals. More than simply a fine reference for plant biology and plant improvement under water-limited conditions, this book spotlights the most relevant biological approaches from plant phenotyping to functional genomics. The need to understand plant response to the lack of water is integral to forming strategies to best manage crops. Drought Adaptation in Cereals starts by offering an overview of the biological basis and defines the adaptive mechanisms found in plants under water-limited conditions. Different approaches are presented to provide understanding of plant genetics basics and plant breeding, including phenotyping, physiology, and biotechnology. The book details drought adaptation mechanisms at the cellular, organ, and entire plant levels, focusing on plant metabolism and gene functions. This resource is extensively referenced and contains tables, charts, and figures to clearly present data and enhance understanding. After a foreword by J. O'Toole and a prologue by A. Blum, Drought Adaptation in Cereals presents a full spectrum of informative topics from other internationally respected scientists. These include: drought’s economic impact (P. Heisey) genotype-by-environment interactions (M. Cooper) secondary traits for drought adaptation (P. Monneveux) leaf growth (F. Tardieu) carbon isotope discrimination (T. Condon) drought adaptation in barley (M. Sorrells), maize (M. Sawkins), rice (R. Lafitte), sorghum (A. Borrell) and wheat (M. Reynolds) carbohydrate metabolism (A. Tiessen) the role of abscisic acid (T. Setter) protection mechanisms and stress proteins (L. Mtwisha) genetic basis of ion homeostasis and water deficit (H. Bohnert) transcriptional factors (K. Yamaguchi-Shinozaki) resurrection plants (D. Bartels) Drought Adaptation in Cereals is a unique, vital reference for scientists, educators, and students in plant biology, agronomy, and natural resources management.
| Author | : Muhammad Aslam |
| Publisher | : Springer |
| Total Pages | : 79 |
| Release | : 2015-11-20 |
| Genre | : Science |
| ISBN | : 3319254421 |
This book focuses on early germination, one of maize germplasm most important strategies for adapting to drought-induced stress. Some genotypes have the ability to adapt by either reducing water losses or by increasing water uptake. Drought tolerance is also an adaptive strategy that enables crop plants to maintain their normal physiological processes and deliver higher economical yield despite drought stress. Several processes are involved in conferring drought tolerance in maize: the accumulation of osmolytes or antioxidants, plant growth regulators, stress proteins and water channel proteins, transcription factors and signal transduction pathways. Drought is one of the most detrimental forms of abiotic stress around the world and seriously limits the productivity of agricultural crops. Maize, one of the leading cereal crops in the world, is sensitive to drought stress. Maize harvests are affected by drought stress at different growth stages in different regions. Numerous events in the life of maize crops can be affected by drought stress: germination potential, seedling growth, seedling stand establishment, overall growth and development, pollen and silk development, anthesis silking interval, pollination, and embryo, endosperm and kernel development. Though every maize genotype has the ability to avoid or withstand drought stress, there is a concrete need to improve the level of adaptability to drought stress to address the global issue of food security. The most common biological strategies for improving drought stress resistance include screening available maize germplasm for drought tolerance, conventional breeding strategies, and marker-assisted and genomic-assisted breeding and development of transgenic maize. As a comprehensive understanding of the effects of drought stress, adaptive strategies and potential breeding tools is the prerequisite for any sound breeding plan, this brief addresses these aspects.
| Author | : Uday C. Jha |
| Publisher | : Bentham Science Publishers |
| Total Pages | : 193 |
| Release | : 2020-10-07 |
| Genre | : Science |
| ISBN | : 981147396X |
Heat Stress In Food Grain Crops: Plant Breeding and Omics Research is a timely compilation of advanced research on heat stress affecting crop yield, plant growth & development of common food grain and cereal crops. Chapters in the book cover several aspects of crop science including the identification of potential gene donors for heat tolerance, physiological mechanisms of adaptation to heat stress, the use of conventional and modern tools of breeding for imparting tolerance against terminal temperature stress and precise mapping of heat tolerant QTLs through biparental and genome wide association mapping. The use of genomics and phenomics methods is focused on through chapters dedicated to important crops such as groundnut, pearl millet, maize, chickpea, mungbean and wheat. Authors of the respective chapters explain the importance of harnessing a diverse crop genepool for sustaining crop production under conditions of increasing heat stress. Readers will be able to understand the relevance of functional genomics in elucidating candidate genes and their regulatory functions contributing to heat tolerance
| Author | : Yunfei Yang |
| Publisher | : |
| Total Pages | : |
| Release | : 2016 |
| Genre | : Technology |
| ISBN | : |
Drought is the major abiotic stress in many wheat environments, decreasing grain yields and farmer's income. Finding ways to improve drought tolerance in wheat is therefore a global effort. Transcription factors (TFs) play important roles in drought tolerance by stimulating plant's protective genome activities in response to heat and water limitation. TFs are specialized proteins which can bind to specific DNA elements in gene promoters and modulate gene expression in response to various external and internal stimuli. Thus TFs is a crucial part of plant signal transduction pathway mediated by signal receptors, phytohormones and other regulatory compounds. The activities of TFs are closely related to their structure, and their binding specificity is determined by the homo-/hetero-dimerization of TFs. The expression of downstream genes may produce a subset of TFs or regulate other functional proteins involved in physiological drought adaptation. Thus, the hierarchic regulations of TF activities, downstream gene expression and protein-protein interaction comprise a complex regulatory network, which participates in drought response and adaptation in cereal crops. Basic mechanisms of this regulatory network have been described, but more insight is needed to find new tools for enhancing cereals' adaptation to drought stress.
| Author | : F. W. G. Baker |
| Publisher | : C.A.B. International |
| Total Pages | : 248 |
| Release | : 1989 |
| Genre | : Technology & Engineering |
| ISBN | : |
| Author | : Tariq Shah |
| Publisher | : CRC Press |
| Total Pages | : 351 |
| Release | : 2023-06-21 |
| Genre | : Science |
| ISBN | : 1000830683 |
Cereal Crops: Genetic Resources and Breeding Techniques provides the reader practical tools for understanding relationships and challenges of successful farming; improvements to genetic modifications; and environmentally sound methods of production of bulk and quality cereals including wheat, maize, rice, barley, and millets. It explores the trait mapping, cropping systems, genome engineering, and identification of specific germplasms needed for the more effective development of biotic and abiotic stress resistant cereals within the framework of ensuring future food supplies around the world. Features: Focuses on cropping systems, genetics and genome engineering for higher crop production at a global level. Features information on specific prebiotic formulas to ward off adverse effects of antibiotics. Covers mechanistic as well as practical approaches for enhancing crop production in a sustainable way. Includes further in-depth analysis of various topics following each chapter. This is a vital resource for researchers, crop biologists, and students working with crop production and climate changes that have a significant impact on crop production, spanning basic to advanced level discussions of plant breeding, molecular genetics, and agronomy. Covering mechanistic and practical approaches for enhancing crop production in a sustainable way, this text is beneficial to intensive farmers and stakeholders in the field of crop production.
| Author | : Arafat Abdel Hamed Abdel Latef |
| Publisher | : Springer Nature |
| Total Pages | : 679 |
| Release | : 2022-11-17 |
| Genre | : Science |
| ISBN | : 9811951217 |
This book is an elaborate account of the effects of abiotic stressors on cereals crops. It not only discusses the impacts of abiotic stress on the crops but also the physiological, biochemical, and molecular strategies applied in plant of cereal crops to alleviate the detrimental effects of abiotic stressors. The book also elaborates on various molecular response to the abiotic stress. It is a knowledgebase providing readers latest updates on development of high-performance diagnostics, stress induced responses, genomics, phenomics and metabolomics involved in abiotic stress tolerance of cereal food crops. The book is useful for plant scientists and research scholars. Post graduate students of agriculture sciences, plant physiology, botany and biochemistry also benefit from this compilation.
| Author | : J. P. Srivastava |
| Publisher | : |
| Total Pages | : 416 |
| Release | : 1987 |
| Genre | : Gardening |
| ISBN | : |
Presents the proceedings of an international symposium held jointly by the International Center for Agricultural Research in Dry Areas (ICARDA) and the National Research Council of Italy (CNR). Contributors discuss a variety of techniques used to improve strains of winter cereals for growth in dry habitats. They examine the role of plant and crop physiology in accelerating cereal improvement for dry areas, types of environments (and plant traits to cope with these environments), breeding methodologies and their relative effectiveness, and new approaches to growing winter cereals in arid regions.
| Author | : Philippe Monneveux |
| Publisher | : Frontiers E-books |
| Total Pages | : 238 |
| Release | : 2014-02-12 |
| Genre | : |
| ISBN | : 2889191818 |
This topic is a unique attempt to simultaneously tackle theoretical and practical aspects in drought phenotyping, through both crop-specific and cross-cutting approaches. It is designed for – and will be of use to – practitioners and postgraduate students in plant science, who are grappling with the challenging task of evaluating germplasm performance under different water regimes. In Part I, different methodologies are presented for accurately characterising environmental conditions, implementing trials, and capturing and analysing the information this generates, regardless of the crop. Part II presents the state-of-art in research on adaptation to drought, and recommends specific protocols to measure different traits in major food crops (focusing on particular cereals, legumes and clonal crops). The topic is part of the CGIAR Generation Challenge Programme’s efforts to disseminate crop research information, tools and protocols, for improving characterisation of environments and phenotyping conditions. The goal is to enhance expertise in testing locations, and to stimulate the development and use of traits related to drought tolerance, as well as innovative protocols for crop characterisation and breeding.
