Download or read book Genetic Variation of European Corn Borer in Delaware and Genetic Comparison with Asian Corn Borer written by Yansong Ni and published by . This book was released on 1995 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variation of the European Corn Borer Ostrinia Nubilalis H bner Lepidoptera Crambidae written by Lilian A. Saldanha and published by . This book was released on 2000 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Genealogy of European Corn Borer for the Greek Delta 11 Desaturase Gene written by Kerry Geiler and published by . This book was released on 2004 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetically Engineered Organisms written by Deborah K. Letourneau and published by CRC Press. This book was released on 2001-09-26 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic engineering suggests new avenues for constructing useful products, but it also poses hazards to the health of the environment and the public. Delineating those hazards is complicated, difficult, and important at every level of risk assessment and risk management decision-making. Risk assessment and risk management may be further complicated
Download or read book Genetic Characterization of Differences Between Two Distinct Voltine Populations of the European Corn Borer Ostrinia Nubilalis H bner Lepidoptera Crambidae written by Cengiz Ikten and published by . This book was released on 2002 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Genetic Structure Variability and Gene Flow of the European Corn Borer Ostrinia Nubilalis H bner Lepidoptera Crambidae written by Jeffrey T. Krumm and published by . This book was released on 2005 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Components of Genetic Variation in a Corn Composite Developed and Selected for Resistance to Corn Borer Ostrinia Furnacalis Guenee written by A.F. Galvez and published by . This book was released on 1987 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic variance components of agronomic and corn borer resistance traits were estimated in a corn composite, CBR Comp. 1 using Design I analysis. The study also determined the genetic and phenotypic correlatior among the different traits; predicted future gain and correlated responses to different recurrent selection methods; and constructed and evaluated selection indices for simultaneous improvement of yield and resistance to the corn borer. An advanced population of the composite was likewise evaluated for yield, stalk damage rating and number of tassel branches. Additive genetic variance was the predominant type of genetic variation on most of the traits. There was significant dominance variance estimates for yield, days to silk, ear length and ear diameter. Traits associated with corn borer resistance had additive genetic variance as the main component of genetic variation. Heritability estimates based on progeny means were generally high for both agronomic and corn borer resistance traits. Ear diameter and ear length were the components most highly correlated with yield. Leaf rating had an intermediate genetic correlation with stalk rating suggesting the presence of pleiotropic genes that conditions resistance to leaf feeding and stalk damage. Yield was negatively correlated with stalk damage rating but positively correlated with leaf feeding rating. Yield was measured in a trial separate from the nursery where corn borer damage ratings were obtained. S1 progeny selection was the most efficient (...).
Download or read book Genetic Variability of Resistance and Yield Losses Due to Asian Corn Borer Ostrinia Furnacalis Guenee in a Corn Population written by E.A. Barlaan and published by . This book was released on 1984 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixty unselected S1 lines of Antigua Gpo 1, a corn borer resistant population, were evaluated under protected and artificially infested conditions to determine the genetic variability of resistance to corn borer, agronomic characteres and yield; estimate the yield loss due to ccorn borer infestation and; identify families with a high level of resistance to the Asian corn borer. Significant variations among lines were obtained in leaf feeding damage, plant height, days to silking and grain yeild but not in overall plant damage, tunnel lenght and yield loss which had high coefficient of variability. Genetic variability of resistance of leaf feedling existed in this population. Frequency distribution showed a high percentage of lines with mean rating between 2to 3 indicating a relatively high degree of resistance to leaf feeding. Additive genetic variance was predominant in this trait. Further improvement in the level of resistance is attainable in this population. a considerabel genetic gain could be expected using S1 family selection. Leaf feeding damage, overall plant damage, and lenght of tunnels were significantly and positively intercorrelated, Likewise, these were positively correlated to yield loss. Leaf feeding damage showed to be a better index for yield loss than overall plant damage and tunnel lenght. Percent yield loss due to corn borer damage ranged from 4.74 to 44.39% with a mean yeild loss of 20,59%. Yield loss was incurred in all lines. Antibiosis seemed Gpo 1 while tolerant was expressed in (...).
Download or read book The Impact of Different First Generation European Corn Borer Population Densities on Yield of Field Corn in Delaware written by Charles A. Magolda and published by . This book was released on 1987 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Maize genetic resources written by and published by CIMMYT. This book was released on 1995 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-04 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1999 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetically Modified Pest Protected Plants written by National Research Council and published by National Academies Press. This book was released on 2000-08-23 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the risks and benefits of crops that are genetically modified for pest resistance, the urgency of establishing an appropriate regulatory framework for these products, and the importance of public understanding of the issues. The committee critically reviews federal policies toward transgenic products, the 1986 coordinated framework among the key federal agencies in the field, and rules proposed by the Environmental Protection Agency for regulation of plant pesticides. This book provides detailed analyses of: Mechanisms and results of genetic engineering compared to conventional breeding for pest resistance. Review of scientific issues associated with transgenic pest-protected plants, such as allergenicity, impact on nontarget plants, evolution of the pest species, and other concerns. Overview of regulatory framework and its use of scientific information with suggestions for improvements.
Download or read book Plant Biotechnology written by Agnès Ricroch and published by Springer Nature. This book was released on 2021-08-30 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in easy to follow language, the book presents cutting-edge agriculturally relevant plant biotechnologies and applications in a manner that is accessible to all. This book updates and introduces the scope and method of plant biotechnologies and molecular breeding within the context of environmental analysis and assessment, a diminishing supply of productive arable land, scarce water resources and climate change. New plant breeding techniques including CRISPR-cas system are now tools to meet these challenges both in developed countries and in developing countries. Ethical issues, intellectual property rights, regulation policies in various countries related to agricultural biotechnology are examined. The rapid developments in plant biotechnology are explained to a large audience with relevant examples. New varieties of crops can be adapted to new climatic conditions in order to reduce pest-associated losses and the adverse abiotic effects
Download or read book Environmental Effects of Transgenic Plants written by National Research Council and published by National Academies Press. This book was released on 2002-02-22 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transgenic crops offer the promise of increased agricultural productivity and better quality foods. But they also raise the specter of harmful environmental effects. In this new book, a panel of experts examines: • Similarities and differences between crops developed by conventional and transgenic methods • Potential for commercialized transgenic crops to change both agricultural and nonagricultural landscapes • How well the U.S. government is regulating transgenic crops to avoid any negative effects. Environmental Effects of Transgenic Plants provides a wealth of information about transgenic processes, previous experience with the introduction of novel crops, principles of risk assessment and management, the science behind current regulatory schemes, issues in monitoring transgenic products already on the market, and more. The book discusses public involvementâ€"and public confidenceâ€"in biotechnology regulation. And it looks to the future, exploring the potential of genetic engineering and the prospects for environmental effects.
Download or read book Ecology Abstracts written by and published by . This book was released on 1999 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.
