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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1046/j.1365-3180.2002.00262.x/epdf
Last checked: 10/13/2015
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Richter, O.;
Bóttcher, U.;
Zwerger, P. |
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| Author Affiliation: | Richter and Bóttcher: Institute of Geoecology, Technical University of Braunschweig, Braunschweig, Germany; and Zwerger: Institute for Weed Research, Biological Research Centre for Agriculture and Forestry, Messeweg 11-12, Braunschweig, Germany |
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| Title: | Modelling spatio-temporal dynamics of herbicide resistance |
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| Source: | Weed Research. Vol. 42, No. 1, February 2002, p. 52-64. |
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| Publishing Information: | Oxford: Blackwell Scientific Publications |
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| # of Pages: | 13 |
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| Keywords: | TIC Keywords: Models; Herbicide resistance; Risk assessment; Population dynamics; Population genetics; Mathematical equations; Weed control
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| Abstract/Contents: | "A mathematical model has been developed for the risk assessment of the spread of genes conferring herbicide resistance in plant populations. The model combines an age- and-stage-structured population dynamic model, a population genetic model and a model of spatial spread. This is achieved by embedding a local matrix population model into a cellular automaton model with raster cells as spatial units. The dynamics of each cell is determined by both its local dynamics and the interaction with neighbouring cells. The model is applied to the evaluation of management strategies to delay or even to prevent long-term evolution of resistance in an annual grass weed. The results show that the appearance and spread of resistant genes is a highly non-linear process exhibiting threshold phenomena, which occur for a wide range of parameters. The properties of the seed survival curve constitute the 'genetic memory' of the system and thus determine its long-term dynamics. It is possible to delay the evolution of resistance by suspension of treatment, reduction in herbicide application rate and introducing fallow periods. Spatial spread from an infested plot is inhibited by leaving untreated strips between adjacent fields." |
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| Language: | English |
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| References: | 17 |
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| Note: | Pictures
Figures
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richter, O., U. Bóttcher, and P. Zwerger. 2002. Modelling spatio-temporal dynamics of herbicide resistance. Weed Res. 42(1):p. 52-64. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1046/j.1365-3180.2002.00262.x/epdf
Last checked: 10/13/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 599 .W4 |
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