Bulletin Trimestriel de L'Association Internationale Des Bibliothecaires Et Documentalistes Agricoles PDF Download

Author: International Association of Agricultural Librarians and Documentalists
Publisher:
ISBN:
Category : Agricultural libraries
Languages : en
Pages : 460

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Author: William Charles Evans
Publisher: Elsevier Health Sciences
ISBN: 9780702041891
Category : Medical
Languages : en
Pages : 3322

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Book Description
This encyclopedic reference work on pharmacognosy covers the study of those natural substances, principally plants, that find a use in medicine. Its popularity and longevity stem from the book's balance between classical (crude and powdered drugs' characterization and examination) and modern (phytochemistry and pharmacology) aspects of this branch of science, as well as the editor's recognition in recent years of the growing importance of complementary medicines, including herbal, homeopathic and aromatherapy. No other book provides such a wealth of detail. A reservoir of knowledge in a field where there is a resurgence of interest - plants as a source of drugs are of growing interest both in complementary medicine fields and in the pharmaceutical industry in their search for new 'lead compounds'. Dr Evans has been associated with the book for over 20 years and is a recognised authority in all parts of the world where pharmacognosy is studied, his knowledge and grasp of the subject matter is unique. Meticulously referenced and kept up to date by the editor, new contributors brought in to cover new areas. New chapter on 'Neuroceuticals'. Addition of many new compounds recently added to British Pharmacopoeia as a result of European harmonisation. Considers development in legal control and standardisation of plant materials previously regarded as 'herbal medicines'. More on the study of safety and efficacy of Chinese and Asian drugs. Quality control issues updated in line with latest guidelines (BP 2007).

Author: David L. Mulcahy
Publisher: Springer
ISBN: 9781461386247
Category : Technology & Engineering
Languages : en
Pages : 0

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In Recognition of the Forgotten Generation D. L. MULCAHyl Pollen was long believed to serve primarily a single function, that of delivering male gametes to the egge A secondary and generally overlooked value of pollen is that it serves to block the transmission of many defective alleles and gene combinations into the next generation. This latter function comes about simply because pollen tubes carrying defective haploid genotypes frequently fail to complete growth through the entire length of the style. However, the beneficial consequences of this pollen selection are diluted by the fact that the same deleterious genotypes are often transmitted through the egg at strictly mendelian frequencies (Khush, 1973). Gene expression in the pollen might thus at least appear to be a phenomenon of trivial consequence. Indeed, Heslop-Harrison (1979) rightly termed the gametophytic portion of the angiosperm life cycle, the "forgotten generation." This neglect, however, came about despite subtle but constant indications that pollen is the site of intense gene activity and selection. For example, Mok and Peloquin (1975) demonstrated that relatively heterozygous diploid pollen shows heterotic characteristics whereas relatively homozygous diploid pOllen does not. This was proof positive that genes are expressed (that is, transcribed and translated) in the pollen. 1 Department of Botany, University of Massachusetts Amherst, MA 01003, USA viii However, the implications for pollen biology of even this recent and well known study were not widely recognized.

Author: Zhi-Qiang Zhang
Publisher: CABI
ISBN: 9780851998411
Category : Gardening
Languages : en
Pages : 260

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Mites are among the most important arthropods in greenhouses, both as pests causing economic injury to greenhouse crops, and as natural enemies used in the biological control of pest insects and other mites. Because of their minute size, mites are much less well known than insects. This book describes the biology, identification and control of such mites and the topics covered include an introduction to the Acari, illustrated keys to orders, families and selected species, the control of pest mites, and the role of beneficial mites in biological control. The book will be of interest to those working in entomology, crop protection and horticulture.

Author: P.E. Rajasekharan
Publisher: Springer
ISBN: 9811336695
Category : Technology & Engineering
Languages : en
Pages : 684

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Book Description
The conservation of crop genetic resources is one of the important elements in efforts to sustainably increase agricultural production in low-income countries, and to guarantee long-term food security, especially for the low-income population groups in these countries. Horticultural crops, as high-value crops, have an important role to play in revitalizing rural economies and can add significantly to national economies. Moreover, horticulture provides more than twice the number of jobs compared to traditional cereal crop production, and the shifting of conventional agriculture towards high-value horticulture has increased employment opportunities in developing countries. To exploit this potential, researchers need a vast array of horticultural genetic resources and information on new traits. Horticultural crops, which are only a part of PGRFA (Plant Genetic Resources for Food and Agriculture), are characterized by a wide and varied range of species. In fact, there are five major horticultural crop groups: fruit and nut crops, vegetables, food legumes, roots and tubers, and lastly the ornamental and medicinal group. In this context, the present book provides a comprehensive overview of the current state of conservation and utilization of horticultural genetic resources, addressing contemporary approaches to conservation in connection with different technologies, including biotechnological approaches as practised in India and in some cases, globally. It includes a brief chapter on the unique nature of horticultural genetic resources, providing a rationale for viewing them as being distinct from field crop genetic resources. Subsequent chapters share insights on protocols for the conservation of selected horticultural crops ex situ, and focus on the increased need to complement these efforts with in situ conservation approaches. Geospatial tools are also briefly described, emphasizing their utility with regard to mapping and managing resources. The book also explores the wild gene pool in horticulture crops; discusses legal aspects related to horticultural genetic resources and biotechnological aspects; and describes the key aspects of sustainable management and replenishment. Given its scope, the book offers a valuable resource for all horticulturists, graduate students, researchers, policymakers, conservationists, and NGOs engaged in horticulture in particular and biodiversity in general.

Author: Joanna F. Fountain
Publisher:
ISBN: 9781563088537
Category : Public libraries
Languages : en
Pages : 0

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Book Description
Provides headings for topics, literary and organizational forms, and names of individuals, corporate bodies, places, works, and so on, that might be needed to catalog a general collection used at least in part by children and readers or viewers interested in popular topics.

Author: Arthur James Wells
Publisher:
ISBN:
Category : Bibliography, National
Languages : en
Pages : 1884

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Author: Qing-Hai Fan
Publisher: Manaaki Whenua Press
ISBN:
Category : Nature
Languages : en
Pages : 298

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The genus Tyrophagus comprises a group of primarily fungivorous mites, including the mould mites, commonly found in stored food products and decaying organic matter. They are also associates of various insects, or inhabitants of vertebrate nests. They are the most abundant and economically important mites inhabiting stored food and products. Some Tyrophagus species are also facultatively phytophagous and can cause economic damage to plants, including both ornamental flowers and vegetables grown in greenhouses. Tyrophagus belongs to the supraorder Acariformes, order Astigmata, family Acaridae. Currently, it comprises about 35 species and is worldwide in distribution. In this contribution species of the genus Tyrophagus present in New Zealand are comprehensively revised, along with species found in Australia and other Oceanian countries. Ten species, including two new species, are described and illustrated from New Zealand. Identification keys to adult males and females are given, along with taxonomic references, hosts/habitats and distribution data of each species. This will help identification and facilitate requests for rapid quarantine decisions from trading partners."

Author: G. E. Trease
Publisher: Saunders
ISBN: 9780721609386
Category : Medical
Languages : en
Pages : 0

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Book Description
Plants and their structures. From plant to phytopharmaceutical. Orders and families of plants: recent research references. Phytochemistry. Drugs of biological origin. Microscopical analysis and commercial fibres.

Author: Gordon R Hanks
Publisher: CRC Press
ISBN: 020321935X
Category : Health & Fitness
Languages : en
Pages : 453

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Book Description
Narcissus and Daffodil is the first book to provide a complete overview of the genus Narcissus. Prized for centuries in western Europe as an ornamental plant, it has recently attracted attention as a source of potentially valuable pharmaceuticals. In eastern European countries, however, Narcissus and other Amaryllidaceae have been valued as a sourc