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Analysis of transient weed dynamics in environments with periodic change and its application to weed population dynamics in crop rotations

Reference	BBS/E/C/00004495
Principal Investigator / Supervisor	Dr Frank van den Bosch
Co-Investigators / Co-Supervisors
Institution	Rothamsted Research
Department	Rothamsted Research Department
Funding type	Research
Value (£)	2,384
Status	Completed
Type	Institute Project
Start date	01/09/2002
End date	07/11/2005
Duration	38 months

Abstract

We aim to develop and test a generic methodology to analyze transient (i.e. short term) dynamics of matrix population models subject to periodic environmental change. Key example is the agriculturally important periodic environments imposed on insects, pathogens and weeds by crop rotations. Experimental and theoretical work will focus on weed growth in crop rotations, where life-history parameters including germination, survival and seed production fluctuate periodically depending on the crops used in the rotation. Predictions of the deterministic models will be tested in controlled environments systems using rapid cycling populations of Arabidopsis as test species. To bridge the gap to the field situation environmental stochasticity will be added to the models. Stochastic models will be tested in a field experiment using Sinapis as weed species in a barley-sugar beet rotation.

Summary

unavailable

Committee	Closed Committee - Agri-food (AF)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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