Read e-book online Weed Ecology in Natural and Agricultural Systems PDF

By B. D. Booth, S. D. Murphy, C. J. Swanton

ISBN-10: 0851995284

ISBN-13: 9780851995281

Ecology is principal to our knowing of the way and why weeds invade and but there are few books that hyperlink introductory weed technology texts with extra complicated ecology books. This textbook introduces ecological ideas to scholars attracted to weed technological know-how and weed administration. It contains examples from the weed and invasive species literature to demonstrate the ecological ideas mentioned. it truly is appropriate examining for ultimate 12 months undergraduates and graduates.

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Additional info for Weed Ecology in Natural and Agricultural Systems

Sample text

Similarly, Holt and Boose (2000) were able to map the potential distribution of velvetleaf (Abutilon theophrasti) in California. They concluded that the distribution of velvetleaf was not likely to increase, because its range was limited by water stress. Thus, potential distribution gives us an idea of the climatic regions where a species is able to survive the physical environment. This does not mean that the species will live there, because a species’ distribution is controlled by non-climatic factors such as lack of dispersal or by interactions with other species.

Geology of Canada, No. 1. Geological Survey of Canada, Ottawa, pp. T. (1996) Temperature and photoperiod effects on onionweed (Asphodelus fistulosus) and its potential range in the United States. Weed Technology 10, 684–689. J. G. S. Weed Science 45, 404–418. C. K. (1996) Climate-based prediction of Asparagus asparagoides and A. declinatus distribution in Western Australia. Plant Protection Quarterly 11, 51–53. M. J. (1991) Determinants of plant distribution: evidence from pine invasions. American Naturalist 137, 639–668.

It is, therefore, more Kselected as it is adapted to homogeneous, predictable environments (rice paddies) and it is the more noxious variety of weed in rice paddies. However, it is restricted to this habitat and is less of a problem worldwide than E. crus-galli var. crus-galli. Agricultural weeds are commonly characterized as being r-selected. These weeds are adapted to frequent disturbance through tillage, herbicides or other agronomic practices. Their life span is short, reproduction is early, fecundity is high and seeds are small (Pianka, 1970).

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Weed Ecology in Natural and Agricultural Systems by B. D. Booth, S. D. Murphy, C. J. Swanton

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