Download or read book Drought Tolerance in Winter Cereals written by J. P. Srivastava and published by . This book was released on 1987 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Drought Resistance in Cereals written by F. W. G. Baker and published by C.A.B. International. This book was released on 1989 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement and management of winter cereals under temperature drought and salinity stresses written by Drought and salinity stresses Improvement and management of winter cereals under temperature and published by INIA. This book was released on 1991 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drought Adaptation in Cereals written by Jean-Marcel Ribaut and published by CRC Press. This book was released on 2006-09-08 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Physiological Aspects of Drought Tolerance in Winter Wheat written by Qasim A. Khan and published by . This book was released on 2000 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Breeding for Water Limited Environments written by Abraham Blum and published by Springer Science & Business Media. This book was released on 2010-11-09 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will be the only existing single-authored book offering a science-based breeder’s manual directed at breeding for water-limited environments. Plant breeding is characterized by the need to integrate information from diverse disciplines towards the development and delivery of a product defines as a new cultivar. Conventional breeding draws information from disciplines such as genetics, plant physiology, plant pathology, entomology, food technology and statistics. Plant breeding for water-limited environments and the development of drought resistant crop cultivars is considered as one of the more difficult areas in plant breeding while at the same time it is becoming a very pressing issue. This volume is unique and timely in that it develops realistic solutions and protocols towards the breeding of drought resistant cultivars by integrating knowledge from environmental science, plant physiology, genetics and molecular biology.
Download or read book Screening for Post anthesis Drought Tolerance in Winter Wheat by Chemical Desiccation written by Peter Stefany and published by . This book was released on 1986 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salinity and Water Stress written by M. Ashraf and published by Springer Science & Business Media. This book was released on 2008-12-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Salinity and water stress limit crop productivity worldwide and generate substantial economic losses each year, yet innovative research on crop and natural resource management can reveal cost-effective ways in which farmers can increase both their productivity and their income. Presenting recent research findings on salt stress, water stress and stress-adapted plants, this book offers insights into new strategies for increasing the efficiency of crops under stressful environments. The strategies are based on conventional breeding and advanced molecular techniques used by plant physiologists, and are discussed using specific case studies to illustrate their potential. The book emphasizes the effects of environmental factors on specific stages of plant development, and discusses the role of plant growth regulators, nutrients, osmoprotectants and antioxidants in counteracting their adverse affects. Synthesising updated information on mechansisms of stress tolerance at cell, tissue and whole-plant level, this book provides a useful reference text for post graduate students and researchers involved in the fields of stress physiology and plant physiology in general, with additional readership amongst researchers in horticulture, agronomy, crop science, conservation, environmental management and ecological restoration.
Download or read book Physiology and Genetics of Drought Tolerance in Cowpea and Winter Wheat written by David Adrian Verbree and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the wake of rising temperatures, erratic rainfall, and declining ground water table, breeding for drought tolerance in food crops has become a top priority throughout the world. Phenotyping a large population of breeding lines for drought tolerance is time-consuming and often unreliable due to multiple possible mechanisms involved. In cowpea (Vigna unguiculata L. Walp), a box-screening method has been used to partition the confounding effects that shoot and root traits have on drought tolerance by restricting root growth and providing a homogeneous soil moisture environment across genotypes. Nonetheless, multiple mechanisms of shoot drought tolerance have been reported which further complicate phenotyping. In winter wheat (Triticum aestivum L.), canopy temperature depression (CTD) has been proposed as a good indicator of drought tolerance. The recent development of low-cost thermal imaging devices could enable high-throughput phenotyping of canopy temperature. While CTD can be an indicator of overall plant water status, it can be confounded by high stomatal resistance, which is another seemingly contradictory mechanism of drought tolerance. The objectives of this study were to explore the physiological basis and genetics of the two mechanisms of shoot drought tolerance previously reported in cowpea and to develop and evaluate a method of high-throughput phenotyping of drought tolerance in winter wheat using thermal imaging. In cowpea, a legume well known for its tight stomatal control, no differences in gas exchange between drought tolerant and susceptible genotypes were observed. A unifoliate stay-green trait was discovered that segregates as a single recessive gene. However, it did not correlate with trifoliate necrosis or overall drought tolerance. In winter wheat, CTD did not always correlate with yield under rainfed conditions. One drought-tolerant cultivar, in particular, had the hottest canopy temperature, possibly because it was able to conserve moisture by closing its stomata whereas another closely related drought-tolerant cultivar had the coolest canopy temperature. Therefore, it appears that no single method of phenotyping for drought tolerance can be broadly applied across all genotypes of a given species due to possible contrasting mechanisms of drought-tolerance and environmental differences. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/152439
Download or read book Tef Eragrostis Tef Zucc written by Seyfu Ketema and published by Bioversity International. This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of Drought Tolerance of Hard Red Winter Wheat Triticum Aestivum L Cultivars in Nebraska written by Sumardi Bin Haji Abdul Hamid and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Framework for Drought Tolerance Research in No till Winter Wheat in Saskatchewan written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Insufficient water is the environmental factor most limiting crop productivity in the semi-arid and dry subhumid regions of Saskatchewan. This study was undertaken to establish a framework for the development of winter wheat cultivars which are less sensitive to drought stress. Five winter wheat genotypes, 'Norstar' and 'Norwin' (products of previous breeding efforts) and three more recently selected 'CDC Kestrel-type' advanced Lines were grown in 17 field environments between 1989 and 1991. This study established that the CDC Kestrel-type lines have a higher yield potential and higher average yield than Norstar or Norwin, but they do not differ in yield under most dryland conditions. The yield advantage of the CDC Kestrel type Lines was associated with conditions that favoured the establishment of yield potential. Conversely, the elimination of the CDC Kestrel-type yield advantage was associated with conditions which suppressed the establishment of yield potential. Differences in rainfall, evaporative demand, soil water depletion, evapotranspiration and aerial biomass accumulation during four periods of crop development resulted in three temporal patterns of drought stress: (1) intermittent, (2) terminal and (3) low stress. The environmental effect on grain yield was due to crop water conditions during all development periods. Crop water conditions from heading to anthesis were particularly important to grain yield. Flag leaf water content was positively related to grain yield in the dryland trials. There was no association between aerial biomass at anthesis and grain yield. Both pre- and post-anthesis ET were of similar importance to grain yield. Soil water reserves were depleted by the time the crop had headed in the dryland trials. Consequently, flag leaf water content declined. The distribution of growing season rainfall determined the timing and intensity of drought. A relatively small genotype-environment (GE) interaction for grain yield resulted in a poor co.
Download or read book Comparison of Drought Tolerance Among Winter Wheat Hybrids and Their Parents Using a Comprehensive Screening Method written by Seth Alan Filbert and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought is known to be one of the most limiting abiotic stresses for wheat (Triticum aestivum L.) production, not only in the Midwest, but throughout the world. It is a complex issue and one that is difficult to screen for when breeding for new varieties. Hybrid wheat is one possible tool for breeders to use in order to make genetic gains towards better tolerance. The effectiveness of hybrid wheat as a tool to address regular periods of drought is a topic of continual discussion. The purpose of this study was to perform a comprehensive screening for drought tolerance comparing two different experimental hybrid entries to their parents. The hybrids were selected based on their good performance under drought in prior field trials. Plants were grown in PVC columns containing sensors that monitored growth media water content and matric potential. All plants were grown equally until heading. Drought treatment began 10 days post anthesis. Plants were observed until senescence/maturity. Several different agronomic characteristics were measured along with physiological traits that have previously been linked to drought tolerance. After completion of the screening, it was observed that the hybrid entries tended to fall between the two parents for a majority of the measurements. When comparing the hybrids to the parents overall, at least one parent outperformed its hybrid in every category. Parent line Parent B was one of the highest ranking genotypes for all measurements. Different drought mechanisms were observed across genotypes upon completion of the treatment. Further research is necessary to understand the hybrid response to drought when compared to pure line varieties.
Download or read book High throughput Phenotyping for Drought Tolerance in Winter Wheat written by Elisabeth Martina Becker and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developing Drought Resistant Cereals written by Roberto Tuberosa and published by Burleigh Dodds Series in Agricultural Science. This book was released on 2022-09-27 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought remains the biggest single threat from climate change to the production of key cereal crops, such as wheat and barley. Cereals also respond in complex ways to drought stress, making improved drought tolerance a challenging trait to achieve. With many cereals recognised as staple food crops due to their nutritional value, more research is required into improving drought tolerance as a means of ensuring the future food security of millions. Developing drought-resistant cereals reviews the wealth of research which addresses how to overcome this challenge in order to mitigate climate change effects in cereal production. This collection details our understanding of the mechanisms of drought tolerance, as well as the development of techniques for improving resistance, including phenotyping, genome-wide association studies (GWAS) and genome editing.
Download or read book A Framework for Drought Tolerance Research in No till Winter Wheat in Saskatchewan written by and published by . This book was released on 1901 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Insufficient water is the environmental factor most limiting crop productivity in the semi-arid and dry subhumid regions of Saskatchewan. This study was undertaken to establish a framework for the development of winter wheat cultivars which are less sensitive to drought stress. Five winter wheat genotypes, 'Norstar' and 'Norwin' (products of previous breeding efforts) and three more recently selected 'CDC Kestrel-type' advanced Lines were grown in 17 field environments between 1989 and 1991. This study established that the CDC Kestrel-type lines have a higher yield potential and higher average yield than Norstar or Norwin, but they do not differ in yield under most dryland conditions. The yield advantage of the CDC Kestrel type Lines was associated with conditions that favoured the establishment of yield potential. Conversely, the elimination of the CDC Kestrel-type yield advantage was associated with conditions which suppressed the establishment of yield potential. Differences in rainfall, evaporative demand, soil water depletion, evapotranspiration and aerial biomass accumulation during four periods of crop development resulted in three temporal patterns of drought stress: (1) intermittent, (2) terminal and (3) low stress. The environmental effect on grain yield was due to crop water conditions during all development periods. Crop water conditions from heading to anthesis were particularly important to grain yield. Flag leaf water content was positively related to grain yield in the dryland trials. There was no association between aerial biomass at anthesis and grain yield. Both pre- and post-anthesis ET were of similar importance to grain yield. Soil water reserves were depleted by the time the crop had headed in the dryland trials. Consequently, flag leaf water content declined. The distribution of growing season rainfall determined the timing and intensity of drought. A relatively small genotype-environment (GE) interaction for grain yield resulted in a poor co.
Download or read book Managing Cover Crops Profitably 3rd Ed written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
