Download or read book Effects of Herbicide Tolerant Crop Cultivation written by Michel Beckert and published by Springer. This book was released on 2017-02-20 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overall, this work identifies key points to be taken into account when drawing up guidelines that govern the use of herbicide-tolerant (HT) crops in order to preserve the effectiveness of this innovation over time. This multidisciplinary expert report, based on an international literature review, assesses the effects of the cultivation of crops possessing HT traits. HT crops may appear to be useful complementary tools when farmers are facing certain difficult weed-management situations or in the context of a diversification of weed-control strategies. Their repeated use, however, can rapidly induce changes in the weed flora that can constitute more complex challenges in terms of weed control. Issues coming up with the development of agricultural production systems including HT crops are the objects of this expert report: what are the perceptions of these varieties by society and the reasons for their adoption by farmers? Are the savings on herbicides promoted by seed companies long-lasting? Can the cultivation of HT crops impact biodiversity?
Download or read book Herbicide Resistant Crops written by Stephen O. Duke and published by CRC Press. This book was released on 2018-01-18 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by a recognized leader in the field, Herbicide-Resistant Crops is the first book to cover all of the issues related to the controversial topic of herbicide-resistant crops. It provides extensive discussions of the modern biotechnological methods that have been used to develop such crops, and reviews the implications - both positive and negative - of developing crops that are resistant to herbicides. The creation and anticipated applications of specific herbicide-resistant crops are also discussed. In addition, the book covers the potential impact of herbicide-resistant crops on weed management practices and the environment, and presents issues related to the regulation and economics of these crops. The editor has brought together a diverse group of professionals, representing the several distinct areas impacted by the new technology of herbicide-resistant crops. The wide range of viewpoints presented in this book creates a balanced and complete survey, providing a notable contribution to the literature.
Download or read book Genetically Engineered Crops written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-01-28 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetically engineered (GE) crops were first introduced commercially in the 1990s. After two decades of production, some groups and individuals remain critical of the technology based on their concerns about possible adverse effects on human health, the environment, and ethical considerations. At the same time, others are concerned that the technology is not reaching its potential to improve human health and the environment because of stringent regulations and reduced public funding to develop products offering more benefits to society. While the debate about these and other questions related to the genetic engineering techniques of the first 20 years goes on, emerging genetic-engineering technologies are adding new complexities to the conversation. Genetically Engineered Crops builds on previous related Academies reports published between 1987 and 2010 by undertaking a retrospective examination of the purported positive and adverse effects of GE crops and to anticipate what emerging genetic-engineering technologies hold for the future. This report indicates where there are uncertainties about the economic, agronomic, health, safety, or other impacts of GE crops and food, and makes recommendations to fill gaps in safety assessments, increase regulatory clarity, and improve innovations in and access to GE technology.
Download or read book Environmental Impact of Genetically Modified Crops written by Natalie Ferry and published by CABI. This book was released on 2009-01-01 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic modification of crops continues to be the subject of intense debate, and opinions are often strongly polarised. Environmental Impact of Genetically Modified Crops addresses the major concerns of scientists, policy makers, environmental lobby groups and the general public regarding this controversial issue, from an editorially neutral standpoint. While the main focus is on environmental impact, food safety issues, for both humans and animals are also considered. The book concludes with a discussion on the future of agricultural biotechnology in the context of sustainability, natural resource management and future global population and food supply.
Download or read book Biodiversity Under Threat written by R E Hester and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is much public concern about threats to global biodiversity. Industrial pollution, changes in agricultural practices and climate change, are all having a direct impact on biodiversity. In this book the Editors provide a broad view of the many pressures imposed by human-induced changes and the many threats to global biodiversity and of the policy responses required to combat them. This excellent text includes the work of some 44 authors and offers a solid description of the current understanding of threats to biodiversity with a range of illustrative examples - a valuable point of reference for ecologists, environmental scientists, and students as well as, policymakers and all other environmental professionals.
Download or read book Genetically Modified Plants written by Roger Hull and published by Academic Press. This book was released on 2009-07-07 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: A transgenic organism is a plant, animal, bacterium, or other living organism that has had a foreign gene added to it by means of genetic engineering. Transgenic plants can arise by natural movement of genes between species, by cross-pollination based hybridization between different plant species (which is a common event in flowering plant evolution), or by laboratory manipulations by artificial insertion of genes from another species. Methods used in traditional breeding that generate transgenic plants by non-recombinant methods are widely familiar to professional plant scientists, and serve important roles in securing a sustainable future for agriculture by protecting crops from pest and helping land and water to be used more efficiently.There is worldwide interest in the biosafety issues related to transgenic crops because of issues such as increased pesticide use, increased crop and weed resistance to pesticides, gene flow to related plant species, negative effects on nontarget organisms, and reduced crop and ecosystem diversity. This book is intended to provide the basic information for a wide range of people involved in the release of transgenic crops. These will include scientists and researchers in the initial stage of developing transgenic products, industrialists, and decision makers. It will be of particular interest to plant scientists taking up biotechnological approaches to agricultural improvement for developing nations. - Discusses traditional and future technology for genetic modification - Compares conventional non-GM approaches and genetic modification - Presents a risk assessment methodology for GM techniques - Details mitigation techniques for human and environmental effects
Download or read book Genetically Modified Herbicide Tolerant Crops Weeds and Herbicides written by Sylvie Bonny and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetically modified (GM) crops have been and continue to be a subject of controversy despite their rapid adoption by farmers where approved. For the last two decades, an important matter of debate has been their impact on pesticide use, particularly for herbicide-tolerant (HT) crops. Some claim that these crops bring about a decrease in herbicide use while others claim the opposite. In fact, since 1996, most cultivated GMOs have been GMHT crops, which involve the use of an associated herbicide, generally glyphosate. In their very first years of adoption, HT crops often led to some decrease in herbicide use. However, the repetition of glyphosate-tolerant crops and of glyphosate only applications in the same fields without sufficient alternation and herbicide diversity has contributed to the appearance of glyphosate-resistant weeds. These weeds have resulted in a rise in the use of glyphosate and other herbicides. This article explores this situation and the impacts of herbicide-resistant weeds, using an interdisciplinary approach and drawing on recent data. The paper analyzes the spread of GM herbicide-tolerant crops worldwide and their consequences on herbicide use in the USA in particular. It then addresses the global development of glyphosate-resistant weeds and its impact, particularly focusing on the USA. Finally, the last section explores how industry, farmers, and weed scientists are coping with the spread of resistant weeds. The concluding comments deal more widely with trends in GM crops.
Download or read book Molecular Biology of Weed Control written by Jonathan Gressel and published by CRC Press. This book was released on 2002-03-28 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Biology of Weed Control assesses the impact of the new tools of molecular biology on the science of weed control as well as the ways in which the science of weed control has helped and influenced molecular biology. Accentuating the utility of molecular biology to contribute to the control of intransigent weed species both in the developing and developed world, the book also looks to the future and describes how molecular biology can be used to diminish the use of chemical herbicides, and enhance crop competitiveness for light, nutrients and water. This volume is essential reading for all weed scientists, environmental students, researchers, and regulators.
Download or read book Herbicide Resistance in Plants written by Homer M. LeBaron and published by John Wiley & Sons. This book was released on 1982 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed and Crop Resistance to Herbicides written by R. De Prado and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, repeated use of herbicides in the same field has imposed selection for resistance in species that were formerly susceptible. On the other hand, considerable research in the private and public sectors has been directed towards introducing herbicide tolerance into susceptible crop species. The evolution of herbicide resistance, understanding its mechanisms, characterisation of resistant weed biotypes, development of herbicide-tolerant crops and management of resistant weeds are described throughout the 36 chapters of this book. It has been written by leading researchers based on the contributions made at the International Symposium on Weed and Crop Resistance to Herbicides held at Córdoba, Spain. This book will be a good reference source for research scientists and advanced students.
Download or read book Glyphosate Resistance in Crops and Weeds written by Vijay K. Nandula and published by John Wiley & Sons. This book was released on 2010-12-28 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: New technologies are becoming available for managing glyphosate resistant (GR) weeds and reducing their spread. GR crop technology has revolutionized crop production in the developed world and the benefits are gradually spilling over to the developing world. In order to sustain an effective, environmentally safe herbicide such as glyphosate and the GR crop technology well in to the future, it is imperative that the issue of GR weeds be comprehensively understood. This book provides such an essential, up-to-date source of information on glyphosate resistance for researchers, extension workers, land managers, government personnel, and other decision makers. Provides comprehensive coverage of the intensely studied topic of glyphosate resistant (GR) in crops Details the development of glyphosate resistance and how to detect and manage the problem in crops Helps standardize global approaches to glyphosate resistance Encompasses interdisciplinary approaches in chemistry, weed science, biochemistry, plant physiology, plant biotechnology, genetics, ecology Includes a chapter on economic analysis of GR impact on crops
Download or read book The Impacts and Management of Herbicide resistant Weeds in Ohio Agronomic Crop Production written by Alyssa Irene Essman and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weed management is one of the most important considerations in agronomic crop production. Herbicide resistance in weed populations is a persistent and relevant threat to cropping systems in Ohio, the US and worldwide. Four studies were conducted from 2018 through 2022 with the following objectives: 1) determine the effects of rye seeding rate, rye management program, and residual herbicide use on cover crop, weed, and soybean parameters, 2) evaluate the effects of cover crop selection, establishment method, and residual herbicides on cover crop, weed, and soybean parameters, 3) determine the effects of sublethal rates of growth regulator herbicides on vegetative and reproductive parameters of hemp, and 4) determine the response of Ohio Amaranthus populations to relevant herbicide site-of-action groups in order to monitor herbicide tolerance within Ohio. A field study was repeated in time thrice from 2018 through 2021 in South Charleston, Ohio to evaluate rye seeding rate, rye management program, and residual herbicide use on cover crop, weed, and soybean parameters. These data suggested that adjusting rye management program, which involved different termination timings and herbicide applications, may have more of an effect on weed suppression than adjustments to rye seeding rate. A spring-applied residual and postemergence herbicides were still needed to provide weed control adequate for crop production. Termination of rye after soybean planting can aid in the suppression of weeds, and the impact on soybean yield likely varies with environmental conditions. Data from a second study that evaluated the effects of cover crop selection, establishment method, and residual herbicides on cover crop, weed, and soybean parameter suggested that biomass varied between broadcast-seeded and drill-seeded cover crops, which influenced their efficacy as a weed management strategy, and were most effective when used with comprehensive herbicide programs. The third study involved two trials conducted from 2020 through 2022 in a greenhouse and growth chamber to evaluate sublethal rates of 2,4-D and dicamba on hemp vegetative and reproductive parameters. The results of these trials suggested that hemp may be more sensitive to dicamba than 2,4-D, and that plants exposed to sublethal rates of either herbicide in the early vegetative stage may not have distinguishable effects at harvest. The fourth study consisted of a greenhouse herbicide screen conducted for Amaranthus samples collected in the fall from 2018 through 2021. Some level of resistance to each herbicide at the 1x rate was exhibited by at least one population each year. Tolerance to more than one site of action group was present in several populations. These results suggest that management and prevention of herbicide resistance in Ohio Amaranthus populations should continue to be a priority for Ohio soybean growers. These studies suggested that cover crops were a valuable tool for use in weed suppression, but chemical tactics were necessary for acceptable weed control. Judicious use of herbicides will be required to deal with the current herbicide resistance issues within Ohio weed populations, mitigate risks to potentially sensitive crops, and the prevention of resistance development should be a priority.
Download or read book Herbicide Resistance in Weeds and Crops written by J. C. Caseley and published by Elsevier. This book was released on 2013-10-22 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicide Resistance in Weeds and Crops is a collection of papers presented at the 11th Long Ashton International Symposium in September 1989. The said symposium is held to study about the increasing incidence of herbicide-resistant weeds and the consideration of the production of herbicide-resistant crops. The book includes studies that suggest the delay and prevention of herbicide resistance; the gravity of the infestation of different herbicide-resistant weed; the management of herbicide resistance; and the mechanisms of herbicide tolerance. Also covered in the book are the improvement of different herbicides, as well as the prospective development of genetically engineered herbicide-resistant plants. Botanists, biochemists, and farmers would greatly benefit from the text, especially those who would like to explore and study the phenomenon.
Download or read book Weed Control written by Nicholas E. Korres and published by CRC Press. This book was released on 2018-12-19 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: In light of public concerns about sustainable food production, the necessity for human and environmental protection, along with the evolution of herbicide resistant weeds, call for a review of current weed control strategies. Sustainable weed control requires an integrated approach based on knowledge of each crop and the weeds that threaten it. This book will be an invaluable source of information for scholars, growers, consultants, researchers and other stakeholders dealing with either arable, row, cash, vegetables, orchards or even grassland-based production systems. The uniqueness of this book comes from the balanced coverage of herbicide effects on humans and environment in relation to best weed control practices of the most important cropping systems worldwide. Furthermore, it amalgamates and discusses the most appropriate, judicious and suitable weed control strategies for a wide range of crops. It reviews the available information and suggests solutions that are not merely feasible but also optimal.
Download or read book Genetic Engineering of Horticultural Crops written by Gyana Ranjan Rout and published by Academic Press. This book was released on 2018-01-08 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic Engineering of Horticultural Crops provides key insights into commercialized crops, their improved productivity, disease and pest resistance, and enhanced nutritional or medicinal benefits. It includes insights into key technologies, such as marker traits identification and genetic traits transfer for increased productivity, examining the latest transgenic advances in a variety of crops and providing foundational information that can be applied to new areas of study. As modern biotechnology has helped to increase crop productivity by introducing novel gene(s) with high quality disease resistance and increased drought tolerance, this is an ideal resource for researchers and industry professionals. Provides examples of current technologies and methodologies, addressing abiotic and biotic stresses, pest resistance and yield improvement Presents protocols on plant genetic engineering in a variety of wide-use crops Includes biosafety rule regulation of genetically modified crops in the USA and third world countries
Download or read book Applied Plant Genomics and Biotechnology written by Palmiro Poltronieri and published by Woodhead Publishing. This book was released on 2015-01-27 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied plant genomics and biotechnology reviews the recent advancements in the post-genomic era, discussing how different varieties respond to abiotic and biotic stresses, investigating epigenetic modifications and epigenetic memory through analysis of DNA methylation states, applicative uses of RNA silencing and RNA interference in plant physiology and in experimental transgenics, and plants modified to produce high-value pharmaceutical proteins. The book provides an overview of research advances in application of RNA silencing and RNA interference, through Virus-based transient gene expression systems, Virus induced gene complementation (VIGC), Virus induced gene silencing (Sir VIGS, Mr VIGS) Virus-based microRNA silencing (VbMS) and Virus-based RNA mobility assays (VRMA); RNA based vaccines and expression of virus proteins or RNA, and virus-like particles in plants, the potential of virus vaccines and therapeutics, and exploring plants as factories for useful products and pharmaceuticals are topics wholly deepened. The book reviews and discuss Plant Functional Genomic studies discussing the technologies supporting the genetic improvement of plants and the production of plant varieties more resistant to biotic and abiotic stresses. Several important crops are analysed providing a glimpse on the most up-to-date methods and topics of investigation. The book presents a review on current state of GMO, the cisgenesis-derived plants and novel plant products devoid of transgene elements, discuss their regulation and the production of desired traits such as resistance to viruses and disease also in fruit trees and wood trees with long vegetative periods. Several chapters cover aspects of plant physiology related to plant improvement: cytokinin metabolism and hormone signaling pathways are discussed in barley; PARP-domain proteins involved in Stress-Induced Morphogenetic Response, regulation of NAD signaling and ROS dependent synthesis of anthocyanins. Apple allergen isoforms and the various content in different varieties are discussed and approaches to reduce their presence. Euphorbiaceae, castor bean, cassava and Jathropa are discussed at genomic structure, their diseases and viruses, and methods of transformation. Rice genomics and agricultural traits are discussed, and biotechnology for engineering and improve rice varieties. Mango topics are presented with an overview of molecular methods for variety differentiation, and aspects of fruit improvement by traditional and biotechnology methods. Oilseed rape is presented, discussing the genetic diversity, quality traits, genetic maps, genomic selection and comparative genomics for improvement of varieties. Tomato studies are presented, with an overview on the knowledge of the regulatory networks involved in flowering, methods applied to study the tomato genome-wide DNA methylation, its regulation by small RNAs, microRNA-dependent control of transcription factors expression, the development and ripening processes in tomato, genomic studies and fruit modelling to establish fleshy fruit traits of interest; the gene reprogramming during fruit ripening, and the ethylene dependent and independent DNA methylation changes. - provides an overview on the ongoing projects and activities in the field of applied biotechnology - includes examples of different crops and applications to be exploited - reviews and discusses Plant Functional Genomic studies and the future developments in the field - explores the new technologies supporting the genetic improvement of plants
Download or read book Safety of Genetically Engineered Foods written by National Research Council and published by National Academies Press. This book was released on 2004-07-08 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assists policymakers in evaluating the appropriate scientific methods for detecting unintended changes in food and assessing the potential for adverse health effects from genetically modified products. In this book, the committee recommended that greater scrutiny should be given to foods containing new compounds or unusual amounts of naturally occurring substances, regardless of the method used to create them. The book offers a framework to guide federal agencies in selecting the route of safety assessment. It identifies and recommends several pre- and post-market approaches to guide the assessment of unintended compositional changes that could result from genetically modified foods and research avenues to fill the knowledge gaps.
