Author: Arnold Arboretum. Library
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 806

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Book Description

Author: Roberto Rodríguez
Publisher: Springer Science & Business Media
ISBN: 1468457608
Category : Science
Languages : en
Pages : 425

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Book Description
For many, the terms aging, maturation and senescence are synonymous and used interchangeably, but they should not be. Whereas senescence represents an endogenously controlled degenerative programme leading to plant or organ death, genetiC aging encompasses a wide array of passive degenerative genetiC processes driven primarily by exogenous factors (Leopold, 1975). Aging is therefore considered a consequence of genetiC lesions that accumulate over time, but by themselves do not necessarily cause death. These lesions are probably made more severe by the increase in size and complexity in trees and their attendant physiology. Thus while the withering of flower petals following pollination can be considered senescence, the loss of viability of stored seeds more clearly represents aging (Norden, 1988). The very recent book "Senescence and Aging in Plants" does not discuss trees, the most dominant group of plants on the earth. Yet both angiospermic and gymnospermic trees also undergo the above phenomena but less is known about them. Do woody plants senesce or do they just age? What is phase change? Is this synonymous with maturation? While it is now becoming recognized that there is no programmed senescence in trees, senescence of their parts, even in gymnosperms (e. g. , needles of temperate conifers las t an average of 3. 5 years), is common; but aging is a readily acknowledged phenomenon. In theory, at least, in the absence of any programmed senescence trees should -live forever, but in practice they do not.

Author: Mark Walderhaug
Publisher: Createspace Independent Publishing Platform
ISBN: 9781495203619
Category : Medical
Languages : en
Pages : 292

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Book Description
The Bad Bug Book 2nd Edition, released in 2012, provides current information about the major known agents that cause foodborne illness.Each chapter in this book is about a pathogen—a bacterium, virus, or parasite—or a natural toxin that can contaminate food and cause illness. The book contains scientific and technical information about the major pathogens that cause these kinds of illnesses.A separate “consumer box” in each chapter provides non-technical information, in everyday language. The boxes describe plainly what can make you sick and, more important, how to prevent it.The information provided in this handbook is abbreviated and general in nature, and is intended for practical use. It is not intended to be a comprehensive scientific or clinical reference.The Bad Bug Book is published by the Center for Food Safety and Applied Nutrition (CFSAN) of the Food and Drug Administration (FDA), U.S. Department of Health and Human Services.

Author: FDA
Publisher: Imp
ISBN:
Category : Medical
Languages : en
Pages : 356

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Book Description
The Bad Bug was created from the materials assembled at the FDA website of the same name. This handbook provides basic facts regarding foodborne pathogenic microorganisms and natural toxins. It brings together in one place information from the Food & Drug Administration, the Centers for Disease Control & Prevention, the USDA Food Safety Inspection Service, and the National Institutes of Health.

Author: The New York Times
Publisher: Macmillan
ISBN: 031264549X
Category : Games & Activities
Languages : en
Pages : 69

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Book Description
The Sunday "New York Times" crossword has been a beloved fixture for more than 60 years. It's become America's favorite--and most famous--crossword puzzle. This 37th collection features 50 crosswords.

Author: Jules Janick
Publisher: John Wiley & Sons
ISBN: 1118060970
Category : Science
Languages : en
Pages : 531

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Book Description
Horticultural Reviews presents state-of-the-art reviews on topics in horticultural science and technology covering both basic and applied research. Topics covered include the horticulture of fruits, vegetables, nut crops, and ornamentals. These review articles, written by world authorities, bridge the gap between the specialized researcher and the broader community of horticultural scientists and teachers.

Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 2132

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Author: Charles Darwin
Publisher: NYU Press
ISBN: 0814720536
Category : History
Languages : en
Pages : 233

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Book Description
Charles Robert Darwin (1809–1882) has been widely recognized since his own time as one of the most influential writers in the history of Western thought. His books were widely read by specialists and the general public, and his influence had been extended by almost continuous public debate over the past 150 years. New York University Press's new paperback edition makes it possible to review Darwin's public literary output as a whole, plus his scientific journal articles, his private notebooks, and his correspondence. This is complete edition contains all of Darwin's published books, featuring definitive texts recording original pagination with Darwin's indexes retained. The set also features a general introduction and index, and introductions to each volume.

Author: The New York Times
Publisher: Macmillan
ISBN: 0312590067
Category : Games & Activities
Languages : en
Pages : 245

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Book Description
New York Times" editor Shortz collects 50 of the best crosswords from the papers popular Sunday edition.

Author:
Publisher:
ISBN:
Category : Fruit-culture
Languages : en
Pages : 1894

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Book Description