Genetic Analysis Of Yield Yield Components And Some Morpho Physiological Traits Related To Drought Resistance In Two Heterozygeous Populations Of Maize Zea Mays L
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| Author | : J. Levitt |
| Publisher | : Elsevier |
| Total Pages | : 622 |
| Release | : 2015-12-04 |
| Genre | : Science |
| ISBN | : 0323163408 |
Responses of Plants to Environmental Stresses, Second Edition, Volume II: Water, Radiation, Salt, and Other Stresses focuses on the effects of stresses on plants. This book discusses how stresses produce their damaging effects and how living organisms defend themselves against stresses. Organized into six parts encompassing 12 chapters, this edition starts with an overview of the various responses of plants to the severities of all the other environmental stresses, with emphasis on the physical and biological stresses and strains. This text then describes water stress in plants, which arise either from an excessive or from an insufficient water activity in the plant's environment. Other chapters consider the resistance to drought stress of plants. This book discusses as well the effects of flooding, which replaces gaseous air by liquid water. The final chapter deals with the comparative stress responses of plants. This book is a valuable resource for plant biologists.
| Author | : Jacob Levitt |
| Publisher | : |
| Total Pages | : 738 |
| Release | : 1972 |
| Genre | : Science |
| ISBN | : |
| Author | : M. Bänzinger |
| Publisher | : CIMMYT |
| Total Pages | : 69 |
| Release | : 2000 |
| Genre | : |
| ISBN | : 9706480463 |
Introduction - why breed for drought and low N tolerance?; Conceptual framework - breeding; Conventional approaches to improving the drought and low N tolerance of maize; Conventional approaches challenged; The challenge of breeding for drought and low N tolerance; Maize under drought and low N stress; Conceptual framework - physiology; Water and the maize plant; Nitrogen and the maize plant; Maize under drought and low N stress - consequences for breeding; Stress management; Drought; Low N stress; Statistical designs and layout of experiments; Increasing the number of replicates; Improved statistical designs; Field layout; Border effects from alleys; Secondary traits; Why use secondary traits?; How do we decide on the value of secondary traits in a drought or low N breeding program?; Secondary traits that help to identify drought tolerance; Secondary traits that help to identify low N tolerance: Selection indices - Combining information on secondary traits with grain yield; Combining information from various experiments; Breeding strategies; Choice of germplasm; Breeding schemes; Biotechnology: potential and constraints for improving drought and low N tolerance; The role of the farmer in selection; What is farmer participatory research and why is it important?; What is new about farmer participatory research?; Participatory methodologies.
| Author | : |
| Publisher | : |
| Total Pages | : 1364 |
| Release | : 1985 |
| Genre | : Agriculture |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 1094 |
| Release | : 1995 |
| Genre | : Agriculture |
| ISBN | : |
| Author | : Stefano Mancuso |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 299 |
| Release | : 2010-03-10 |
| Genre | : Science |
| ISBN | : 3642103057 |
In the last half century, because of the raising world population and because of the many environmental issues posed by the industrialization, the amount of arable land per person has declined from 0.32 ha in 1961–1963 to 0.21 ha in 1997–1999 and is expected to drop further to 0.16 ha by 2030 and therefore is a severe menace to food security (FAO 2006). At the same time, about 12 million ha of irrigated land in the developing world has lost its productivity due to waterlogging and salinity. Waterlogging is a major problem for plant cultivation in many regions of the world. The reasons are in part due to climatic change that leads to the increased number of precipitations of great intensity, in part to land degradation. Considering India alone, the total area suffering from waterlogging is estimated to be about 3.3 million ha (Bhattacharya 1992), the major causes of waterlogging include super- ous irrigation supplies, seepage losses from canal, impeded sub-surface drainage, and lack of proper land development. In addition, many irrigated areas are s- jected to yield decline because of waterlogging due to inadequate drainage systems. Worldwide, it has been estimated that at least one-tenth of the irrigated cropland suffers from waterlogging.
| 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 | : W. J. Davies |
| Publisher | : Taylor & Francis |
| Total Pages | : 290 |
| Release | : 1991 |
| Genre | : Science |
| ISBN | : |
The physiology and biochemistry of abscisic acid (ABA is an area of rapidly increasing research interest. Indeed, more is now known about the molecular action of ABA than about any other plant growth regulator. This up-to-date survey of the field is therefore particularly timely. Leading experts from the USA, UK, France, Germany and Australia have contributed papers based on the following topics: quantifications of ABA; mechanisms of ABA action; ABA and plant development; biochemistry of ABA; ABA and environmental stress; ABA in gene regulation.
| Author | : B. Venkateswarlu |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 617 |
| Release | : 2011-11-22 |
| Genre | : Technology & Engineering |
| ISBN | : 9400722206 |
Crops experience an assortment of environmental stresses which include abiotic viz., drought, water logging, salinity, extremes of temperature, high variability in radiation, subtle but perceptible changes in atmospheric gases and biotic viz., insects, birds, other pests, weeds, pathogens (viruses and other microbes). The ability to tolerate or adapt and overwinter by effectively countering these stresses is a very multifaceted phenomenon. In addition, the inability to do so which renders the crops susceptible is again the result of various exogenous and endogenous interactions in the ecosystem. Both biotic and abiotic stresses occur at various stages of plant development and frequently more than one stress concurrently affects the crop. Stresses result in both universal and definite effects on plant growth and development. One of the imposing tasks for the crop researchers globally is to distinguish and to diminish effects of these stress factors on the performance of crop plants, especially with respect to yield and quality of harvested products. This is of special significance in view of the impending climate change, with complex consequences for economically profitable and ecologically and environmentally sound global agriculture. The challenge at the hands of the crop scientist in such a scenario is to promote a competitive and multifunctional agriculture, leading to the production of highly nourishing, healthy and secure food and animal feed as well as raw materials for a wide variety of industrial applications. In order to successfully meet this challenge researchers have to understand the various aspects of these stresses in view of the current development from molecules to ecosystems. The book will focus on broad research areas in relation to these stresses which are in the forefront in contemporary crop stress research.
| Author | : K. S. Fischer |
| Publisher | : Int. Rice Res. Inst. |
| Total Pages | : 106 |
| Release | : 2003 |
| Genre | : Rice |
| ISBN | : 9712201899 |
Information available for other cereals and the limited or circumstantial evidence available for rice indicate that we can now breed varieties that have improved yield under drought and produce high yields in the good seasons. This manual aims to help plant breeders develop such varieties.
