Subject Guide to Books in Print PDF Download
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Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 3310
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Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 3310
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Author: D. M. van Gelderen
Publisher: Timber Press (OR)
ISBN: 9780881920000
Category : Gardening
Languages : en
Pages : 458
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Book Description
International experts worked for nearly two decades to produce this greatest single source of information on maples. Every known maple is described, including growth habit, distribution, hardiness, and autumn color, as well as useful information on culture, propagation, and pests and diseases.
Author: Roberto RodrÃguez
Publisher: Springer Science & Business Media
ISBN: 1468457608
Category : Science
Languages : en
Pages : 425
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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: Frank Albert Waugh
Publisher:
ISBN:
Category : Landscape gardening
Languages : en
Pages : 184
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Author: Massachusetts Horticultural Society. Library
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 686
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Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 2204
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Author:
Publisher: R. R. Bowker
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 1296
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Here's quick access to more than 490,000 titles published from 1970 to 1984 arranged in Dewey sequence with sections for Adult and Juvenile Fiction. Author and Title indexes are included, and a Subject Guide correlates primary subjects with Dewey and LC classification numbers. These cumulative records are available in three separate sets.
Author: Herman Melville
Publisher:
ISBN:
Category :
Languages : en
Pages : 392
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Author: Allen V. Barker
Publisher: CRC Press
ISBN: 1420014870
Category : Science
Languages : en
Pages : 662
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The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
Author: Albert James Diaz
Publisher:
ISBN:
Category : Editions
Languages : en
Pages : 1220
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Book Description
