Download or read book Effects of Rapid Salinity Change on Submersed Aquatic Plants written by Chanda Jones Littles and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrilla verticillata exhibited 100% mortality at 15 and 25 ppt, irrespective of exposure duration. Relative to controls, M. spicatum and V. americana exhibited declines in growth at 15 ppt after 1 and 2 day exposures; both exhibited significant mortality after a 7 day exposure. All three species experienced significant mortality at 25 ppt. Storm events are likely to have a marked influence on the vegetative structure of this tidally influenced system.
Download or read book Handbook of Plant and Crop Stress Fourth Edition written by Mohammad Pessarakli and published by CRC Press. This book was released on 2019-08-06 with total page 1199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the third edition of the Handbook of Plant and Crop Stress, continuous discoveries in the fields of plant and crop environmental stresses and their effects on plants and crops have resulted in the compilation of a large volume of the latest discoveries. Following its predecessors, this fourth edition offers a unique and comprehensive collection of topics in the fields of plant and crop stress. This new edition contains more than 80% new material, and the remaining 20% has been updated and revised substantially. This volume presents 10 comprehensive sections that include information on soil salinity and sodicity problems; tolerance mechanisms and stressful conditions; plant/crop responses; plant/crop responses under pollution and heavy metal; plant/crop responses under biotic stress; genetic factors and plant/crop genomics under stress conditions; plant/crop breeding under stress conditions; empirical investigations; improving tolerance; and beneficial aspects of stressors. Features: Provides exhaustive coverage written by an international panel of experts in the field of agriculture, particularly in plant/crop stress areas Contains 40 new chapters and 10 extensively revised and expanded chapters Includes three new sections on plant breeding, stress exerted to weeds by plants, and beneficial aspects of stress on plants/crops Numerous case studies With contributions from 100 scientists and experts from 20 countries, this Handbook provides a comprehensive resource for research and for university courses, covering soil salinity/sodicity issues and plant/crop physiological responses under environmental stress conditions ranging from cellular aspects to whole plants. The content can be used to plan, implement, and evaluate strategies to mitigate plant/crop stress problems. This new edition includes numerous tables, figures, and illustrations to facilitate comprehension of the material as well as thousands of index words to further increase accessibility to the desired information.
Download or read book Responses of Submersed Vascular Plant Communities to Environmental Change Summary written by Graham J. Davis and published by . This book was released on 1980 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Salinity Changes on the Aquatic Vegetation on Lake Charm Lake Tutchewop and Cullens Lake written by J. F. Saunders and published by . This book was released on 1979 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Responses of Submersed Vascular Plant Communities to Environmental Change Summary written by Graham J. Davis and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Plant Control Research Program Effects of Salinity and Irradiance Conditions on the Growth Morphology and Chemical Composition of Submersed Aquatic Macrophytes written by Robert R. Twilley and published by . This book was released on 1990 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrilla verticillata, Myriophyllum spicatum, Potamogeton perfoliatus, and Vallisneria americana were compared among different salinity and light conditions. The culture solution in five pairs of tanks was gradually adjusted to salinities of 0, 2, 4,6, and 12 ppt. With the exception of H. verticillata, the sea plants may be considered eurysaline species that are able to salinities one third the strength of seawater. With increasing salinity, the influorescence production decreased in M. spicatum and P. perfoliatus, yet asexual reproduction in the latter species by underground buds remained constant. Stem elongation increased in response to shading in M. spicatum, while shaded P. perfoliatus has higher concentrates of chlorophyll a. In association with high epiphytic mass, chlorophyll a concentrations in all species were greatest at 12 ppt. The concentration of sodium increased in all four species examined, indicating that these macrophytes did not possess mechanisms to exclude this ion. The nitrogen content of the plants tested increased significantly with higher sodium concentrate, suggesting that nitrogen may be used in osmoregulation.
Download or read book Technical Bulletin written by Canada. Inland Waters Directorate and published by . This book was released on 1972 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Salinity Pulses of Varying Duration and Intensity on Three Freshwater Submerged Aquatic Vegetation Species written by Rebecca Wright and published by . This book was released on 2012 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salt Stress in Plants written by Parvaiz Ahmad and published by Springer Science & Business Media. This book was released on 2013-02-26 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental conditions and changes, irrespective of source, cause a variety of stresses, one of the most prevalent of which is salt stress. Excess amount of salt in the soil adversely affects plant growth and development, and impairs production. Nearly 20% of the world’s cultivated area and nearly half of the world’s irrigated lands are affected by salinity. Processes such as seed germination, seedling growth and vigour, vegetative growth, flowering and fruit set are adversely affected by high salt concentration, ultimately causing diminished economic yield and also quality of produce. Most plants cannot tolerate salt-stress. High salt concentrations decrease the osmotic potential of soil solution, creating a water stress in plants and severe ion toxicity. The interactions of salts with mineral nutrition may result in nutrient imbalances and deficiencies. The consequence of all these can ultimately lead to plant death as a result of growth arrest and molecular damage. To achieve salt-tolerance, the foremost task is either to prevent or alleviate the damage, or to re-establish homeostatic conditions in the new stressful environment. Barring a few exceptions, the conventional breeding techniques have been unsuccessful in transferring the salt-tolerance trait to the target species. A host of genes encoding different structural and regulatory proteins have been used over the past 5–6 years for the development of a range of abiotic stress-tolerant plants. It has been shown that using regulatory genes is a more effective approach for developing stress-tolerant plants. Thus, understanding the molecular basis will be helpful in developing selection strategies for improving salinity tolerance. This book will shed light on the effect of salt stress on plants development, proteomics, genomics, genetic engineering, and plant adaptations, among other topics. The book will cover around 25 chapters with contributors from all over the world.
Download or read book Climate Change 2007 Impacts Adaptation and Vulnerability written by Martin L. Parry and published by Cambridge University Press. This book was released on 2007 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: IPCC Fourth Assessment Report on climate change impacts, adaptation and vulnerability for researchers, students, policymakers.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1975 with total page 1922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Quality Criteria written by United States. National Technical Advisory Committee on Water Quality Criteria and published by . This book was released on 1968 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Bulletin Inland Waters Directorate written by Canada. Inland Waters Directorate and published by . This book was released on 1965 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Florida Manatee written by Roger L. Reep and published by University Press of Florida. This book was released on 2021-04-14 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: From two scientists who have been at the forefront of manatee research for over three decades, The Florida Manatee offers an engaging, accessible introduction to manatee biology, including communication, diet, long-distance migration, and much more. This second edition is updated with new scientific research, as well as discussions of recent conservation efforts—largely driven by manatee injuries and deaths resulting from boat collisions—that have contributed to the robust growth of manatee numbers in Florida. It also includes the latest predictions for manatee populations and health in the future, both in Florida and worldwide. This is the perfect book for anyone seeking the most comprehensive, current information on this fascinating marine mammal.
Download or read book Submerged Rice written by Pranab Basuchaudhuri and published by CRC Press. This book was released on 2024-08-23 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water stagnation and submergence are major factors in rice growing. Water stagnation and submergence happen as a result of excessive rainfall or flash floods. The duration of submergence can last several weeks, and the level of water may be as high as 100 cm. This impacts rice yields. This book analyzes different aspects, viz., morphology, physiology, biochemistry and genetics, and reviews the suitability of different varieties for better sustainability and reduction of yield loss. It also reviews the different types of floods, and studies biological changes in indigenous and recently developed rice varieties. There are seven chapters: Introduction, History of floods, Diversity of submergence, Adoptive morphology, Physiological aspects, Molecular and genetic aspects, and Yield and yield-gaps. It is comprehensive with scientific dogma, findings and reasonings for students at universities and researchers.
