Bracken Biology And Management
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Bracken Biology And Management
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Author : John Alexander Thomson
language : en
Publisher:
Release Date : 1990
Bracken Biology And Management written by John Alexander Thomson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Bracken fern categories.
The Effects Of Control On The Biomass Carbohydrate Content And Bud Reserves Of Bracken Pteridium Aquilinum L Kuhn And An Evaluation Of A Bracken Growth Model
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Author : R J. Pakeman
language : en
Publisher:
Release Date : 1994
The Effects Of Control On The Biomass Carbohydrate Content And Bud Reserves Of Bracken Pteridium Aquilinum L Kuhn And An Evaluation Of A Bracken Growth Model written by R J. Pakeman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
This paper examines the initial effects of bracken control on frond numbers and biomass, and the biomass, carbohydrate reserves and bud densities of bracken stands cut once per year, twice per year, subject to a single application of asulam or left untreated. The seasonal dynamics of these parameters are displayed; carbohydrate and biomass are both removed from the rhizome system to produce frond tissue, and are replenished at the end of the growing season. Asulam application reduced densities of both active and dormant buds, and both frond biomass and density. It did not significantly reduce rhizome biomass or carbohydrate reserves in the two years after treatment. Cutting, either once or twice per year reduced both rhizome biomass and rhizome carbohydrate reserves, as well as bud densities, though the latter were reduced in proportion to biomass. Cutting twice a year reduced the production of fronds, both in numbers and biomass. The collected data were used to evaluate a model of bracken growth, and subsequently to improve estimates of some of the model parameters. The model simulations of control treatments were compared to field data. The effects of cutting once per year and spraying with asulam were predicted accurately, but the bracken stand was more resilient to cutting twice per year than would be expected from model predictions. The combination of cutting and spraying is discussed as a potential tool in land management and the deficiencies of the model are discussed in relation to the need for future research into the biology of bracken.
Bracken Fern
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Author : Richard Thornton Smith
language : en
Publisher:
Release Date : 2000
Bracken Fern written by Richard Thornton Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Bracken fern categories.
Fern Ecology
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Author : Klaus Mehltreter
language : en
Publisher: Cambridge University Press
Release Date : 2010-06-03
Fern Ecology written by Klaus Mehltreter and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-03 with Science categories.
Ferns are an integral part of the world's flora, appreciated for their beauty as ornamentals, problematic as invaders and endangered by human interference. They often dominate forest understories but also colonize open areas, invade waterways and survive in nutrient-poor wastelands and eroded pastures. Presented here is the first comprehensive summary of fern ecology, with worldwide examples from Siberia to the islands of Hawaii. Topics include a brief history of the ecological study of ferns, a global survey of fern biogeography, fern population dynamics, the role of ferns in ecosystem nutrient cycles, their adaptations to xeric environments and future directions in fern ecology. Fully illustrated concepts and processes provide a framework for future research and utilization of ferns for graduate students and professionals in ecology, conservation and land management.
Handbook Of Plant And Fungal Toxicants
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Author : J. P. Felix D'Mello
language : en
Publisher: CRC Press
Release Date : 2020-03-27
Handbook Of Plant And Fungal Toxicants written by J. P. Felix D'Mello and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-27 with Medical categories.
First published in 1997. Natural toxicants are the subject of research throughout the world, and they are used for many purposes. The Handbook of Plant and Fungal Toxicants presents a wide range of compounds and considers how they relate to food safety, therapeutic purposes in medicine, and uses in breeding plants for enhanced resistance to insects and disease. Alkaloids, both from plant and fungal sources, are emphasized. Also covered are a variety of toxicants and phytochemicals including: bracken fern poisons polyphenolics gossypol flavones isoflavones pyrimidine glycosides fruit and vegetable allergens linear furanocoumarins photosensitizing agents nitrates oxalates Pinus ponderosa toxicants The text stresses the positive aspects of plant secondary compounds and presents examples of beneficial attributes in the context of environmental protection and human health. An international authorship addresses the global diversity and ecological distribution of plant and fungal toxicants. This handbook is ideal for senior-level college students and post-graduate students studying animal science, toxicology, and pharmaceutical sciences.
Australian National Bibliography
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Author :
language : en
Publisher: National Library Australia
Release Date : 1961
Australian National Bibliography written by and has been published by National Library Australia this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
Toxic Plants Of North America
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Author : George E. Burrows
language : en
Publisher: John Wiley & Sons
Release Date : 2013-01-29
Toxic Plants Of North America written by George E. Burrows and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-29 with Medical categories.
Toxic Plants of North America, Second Edition is an up-to-date, comprehensive reference for both wild and cultivated toxic plants on the North American continent. In addition to compiling and presenting information about the toxicology and classification of these plants published in the years since the appearance of the first edition, this edition significantly expands coverage of human and wildlife—both free-roaming and captive—intoxications and the roles of secondary compounds and fungal endophytes in plant intoxications. More than 2,700 new literature citations document identification of previously unknown toxicants, mechanisms of intoxication, additional reports of intoxication problems, and significant changes in the classification of plant families and genera and associated changes in plant nomenclature. Toxic Plants of North America, Second Edition is a comprehensive, essential resource for veterinarians, toxicologists, agricultural extension agents, animal scientists, and poison control professionals.
Poisonous Plants And Related Toxins
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Author : Thomas Acamovic
language : en
Publisher: CABI
Release Date : 2004
Poisonous Plants And Related Toxins written by Thomas Acamovic and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Nature categories.
This book presents refereed and edited papers from the 6th International Symposium on Poisonous Plants, held in Scotland in August 2001. It covers a range of topics from plant biochemistry to toxic effects in animals (particularly grazing farmed animals) and humans. The contents include the evolution of antinutrients and toxins in plants, biomedical applications of toxins in plants, isolation, identification and effects of plant and fungal toxins and the effect of plant toxins on aversion to plants in animal diets.
Biological Management Of Diseases Of Crops
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Author : P. Narayanasamy
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-28
Biological Management Of Diseases Of Crops written by P. Narayanasamy and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-28 with Science categories.
Biological disease management tactics have emerged as potential alternative to chemical application for containing crop diseases. Biotic and abiotic biological control agents (BCAs) have been demonstrated to be effective against diseases caused by microbial plant pathogens. Combination of biotic and abiotic agents leads to synergism and consequent improvement in the effectiveness of disease control. It is essential to assay the biocontrol potential of all isolates/species of fungal, bacterial and viral biocontrol agents by different techniques in vitro and under greenhouse and field conditions and to precisely identify and differentiate the most effective isolates from less effective ones by employing biological, immunological and nucleic acid-based assays.
Bracken Perceptions And Bracken Control In The British Uplands
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Author : James Allan Taylor
language : en
Publisher:
Release Date : 1999
Bracken Perceptions And Bracken Control In The British Uplands written by James Allan Taylor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Bracken fern categories.