Weed Physiology

Author : Robert Zimdahl
Publisher : Academic Press
ISBN 13 : 0323149421
Total Pages : 465 pages
Book Rating : 4.26/5 ( download)

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Download or read book Fundamentals of Weed Science written by Robert Zimdahl and published by Academic Press. This book was released on 2012-12-02 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Weed Science provides an introduction to the basic principles of weed science for undergraduate courses. It discusses several aspects of weed biology and control, and traces the history of herbicide development. The book begins with an introduction to weeds, covering their definition, characteristics, harmful aspects, and the cost of weed control. This is followed chapters on weed classification, the uses of weeds, weed biology, weed ecology, allelopathy, the significance of plant competition, weed management and control methods, and biological weed control. Later chapters deal with herbicidesthe most important weed control tools and the ones with the greatest potential for untoward effects. Students of weed science must understand herbicides and the factors governing their use as well as the potential for misuse. These chapters discuss chemical weed control, the properties and uses of herbicides, factors affecting herbicide performance, herbicide application, herbicide formulation, ecological impact of herbicides, pesticide registration and legislation, weed management systems, and the future of weed science.

Author : Mithila Jugulam
Publisher : CRC Press
ISBN 13 : 1351647350
Total Pages : 217 pages
Book Rating : 4.59/5 ( download)

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Download or read book Biology, Physiology and Molecular Biology of Weeds written by Mithila Jugulam and published by CRC Press. This book was released on 2017-07-12 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides comprehensive information on a wide range of topics from biology, physiology, genetics to the use of genomic tools in weed science. The book covers information at a more advanced level than the previously published books in weed science. It covers not only weed genetics and genomics research, but also weed management from an ecological perspective. Furthermore, the book also gives a broad coverage of novel mechanisms of weed resistance to herbicides. More importantly, it includes next generation sequencing techniques and bioinformatics of herbicide resistant genes in weeds.

Author : Robert L Zimdahl
Publisher : Elsevier
ISBN 13 : 0123815029
Total Pages : 220 pages
Book Rating : 4.26/5 ( download)

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Download or read book A History of Weed Science in the United States written by Robert L Zimdahl and published by Elsevier. This book was released on 2010-02-04 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is important that scientists think about and know their history - where they came from, what they have accomplished, and how these may affect the future. Weed scientists, similar to scientists in many technological disciplines, have not sought historical reflection. The technological world asks for results and for progress. Achievement is important not, in general, the road that leads to achievement. What was new yesterday is routine today, and what is described as revolutionary today may be considered antiquated tomorrow. Weed science has been strongly influenced by technology developed by supporting industries, subsequently employed in research and, ultimately, used by farmers and crop growers. The science has focused on results and progress. Scientists have been--and the majority remain--problem solvers whose solutions have evolved as rapidly as have the new weed problems needing solutions. In a more formal sense, weed scientists have been adherents of the instrumental ideology of modern science. That is an analysis of their work, and their orientation reveals the strong emphasis on practical, useful knowledge; on know how. The opposite, and frequently complementary orientation, that has been missing from weed science is an emphasis on contemplative knowledge; that is, knowing why. This book expands on and analyzes how these orientations have affected weed science’s development. The first analytical history of weed science to be written Compares the development of weed science, entomology and plant pathology Identifies the primary founders of weed science and describes their role

Author : Godfrey Pearlson
Publisher : Academic Press
ISBN 13 : 0128181753
Total Pages : 326 pages
Book Rating : 4.51/5 ( download)

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Download or read book Weed Science written by Godfrey Pearlson and published by Academic Press. This book was released on 2020-07-11 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: WHAT DO WE KNOW ABOUT MARIJUANA AND HOW DO WE KNOW IT? Marijuana is the most frequently consumed illicit drug worldwide, with over 158.8 million users, according to the UN. Responding to public pressure, the US federal government is likely to legalize recreational marijuana within the next few years. With increasing numbers of people using cannabis both medically and recreationally there are many looming questions that only science can answer. These include: What's likely to happen, both good and bad, if the US legalizes marijuana? What are some simple, science-based rules to separate fact from fiction and to help guide policy in the highly contentious marijuana debate? Exactly what is cannabis doing in the brain that gets us high? A journey through THC neuroscience Does cannabis really have medical benefits - what's the evidence? To what extent does cannabis impair driving? Can smoking marijuana in adolescence affect IQ or risk for developing schizophrenia? Is marijuana safe to use during pregnancy? Reviews the endocannabinoid system and why our bodies are full of "weed receptors" Introduces readers to the various forms of marijuana: flower, dabs, hash, edibles, shatter, vapes, tinctures, oils and synthetics, THC, CBD and terpenes. Demonstrates how and why cannabis affects different people very differently. Discusses how MRI and PET scans can help show the effects of marijuana on the brain. Discusses long-term effects of adolescent and adult cannabis use. Examines the evidence for cannabis’s role in increasing the risk for schizophrenia-like illnesses.

Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 0309071550
Total Pages : 288 pages
Book Rating : 4.50/5 ( download)

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Download or read book Marijuana and Medicine written by Institute of Medicine and published by National Academies Press. This book was released on 1999-07-10 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The medical use of marijuana is surrounded by a cloud of social, political, and religious controversy, which obscures the facts that should be considered in the debate. This book summarizes what we know about marijuana from evidence-based medicineâ€"the harm it may do and the relief it may bring to patients. The book helps the reader understand not only what science has to say about medical marijuana but also the logic behind the scientific conclusions. Marijuana and Medicine addresses the science base and the therapeutic effects of marijuana use for medical conditions such as glaucoma and multiple sclerosis. It covers marijuana's mechanism of action, acute and chronic effects on health and behavior, potential adverse effects, efficacy of different delivery systems, analysis of the data about marijuana as a gateway drug, and the prospects for developing cannabinoid drugs. The book evaluates how well marijuana meets accepted standards for medicine and considers the conclusions of other blue-ribbon panels. Full of useful facts, this volume will be important to anyone interested in informed debate about the medical use of marijuana: advocates and opponents as well as policymakers, regulators, and health care providers.

Author : Stephen O. Duke
Publisher : CRC Press
ISBN 13 : 1351094637
Total Pages : 302 pages
Book Rating : 4.34/5 ( download)

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Download or read book Weed Physiology written by Stephen O. Duke and published by CRC Press. This book was released on 2018-01-18 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2 deals with the mechanisms of herbicide action and of resistance and tolerance to herbicides. The first five chapters of this volume cover the effects of herbicides and adjuvants on the physiology of plants. Professor Black‘s chapter begins by covering the effects of herbicides on photosynthesis, including photosynthetic assimilation of nitrogen, sulfur, and phosphorus. This is followed by Dr. Morelands chapter on herbicide interactions with plant respiration. The third chapter by Professor Bartels deals with the effects of herbicides on chloroplast and cellular development with emphasis on correlating physiological information with ultrasound effects.

Author : Bhagirath Chauhan
Publisher : Elsevier
ISBN 13 : 0128229357
Total Pages : 433 pages
Book Rating : 4.54/5 ( download)

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Download or read book Biology and Management of Problematic Crop Weed Species written by Bhagirath Chauhan and published by Elsevier. This book was released on 2021-09-04 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weeds are the main biological constraint to crop production throughout the year. Uncontrolled weeds could cause 100% yield loss. In Australia, the overall cost of weeds to Australian grain growers was estimated at AU$ 3.3 billion annually. In terms of yield losses, weeds amounted to 2.7 million tonnes of grains at a national level. In the USA, weeds cost US$ 33 billion in lost crop production annually. In India, these costs were estimated to be much higher (US$ 11 billion). These studies from different economies suggest that weeds cause substantial yield and economic loss. Biology and Management of Problematic Weed Species details the biology of key weed species, providing vital information on seed germination and production, as well as factors affecting weed growth. These species include Chenopodium album, Chloris truncata and C. virgate, Conyza bonariensis and C. canadensis, Cyperus rotundus, and many more. This information is crucial for researchers and growers to develop integrated weed management (IWM) strategies. Written by leading experts across the globe, this book is an essential read to plant biologists and ecologists, crop scientists, and students and researchers interested in weed science. Provides detailed information on the biology of different key weed species Covers weed seed germination and emergence Presents the factors affecting weed growth and seed production

Author : Duke
Publisher : CRC Press
ISBN 13 : 1351086197
Total Pages : 176 pages
Book Rating : 4.96/5 ( download)

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Download or read book Weed Physiology written by Duke and published by CRC Press. This book was released on 2018-01-18 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weeds are plants existing at places and/or times at which they are considered undesirable by man. Thys, man‘s primary interest in weeds is in dinging methods for eliminating their presences. Understanding the physiology of weeds and how it differs from that of crop plants is becoming increasingly important in discovering new chemical, genetic, and cultural methods of controlling weeds. The two volumes of this book will aim to discuss the following; the physiology of weed production the ecophysiology of weeds, the mechanisms of herbicide action, and the mechanisms of herbicide resistance and tolerance.

Author : Stephen O. Duke
Publisher : CRC Press
ISBN 13 : 1351086189
Total Pages : 268 pages
Book Rating : 4.89/5 ( download)

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Download or read book Weed Physiology written by Stephen O. Duke and published by CRC Press. This book was released on 2018-01-18 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2 deals with the mechanisms of herbicide action and of resistance and tolerance to herbicides. The first five chapters of this volume cover the effects of herbicides and adjuvants on the physiology of plants. Professor Black‘s chapter begins by covering the effects of herbicides on photosynthesis, including photosynthetic assimilation of nitrogen, sulfur, and phosphorus. This is followed by Dr. Morelands chapter on herbicide interactions with plant respiration. The third chapter by Professor Bartels deals with the effects of herbicides on chloroplast and cellular development with emphasis on correlating physiological information with ultrasound effects.

Author : Rao V S.
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.07/5 ( download)

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Download or read book Principles of Weed Science written by Rao V S. and published by . This book was released on 2000 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: