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Sustainability of grass/clover systems as affected by the dynamics of the pest Sitona in response to above- and below-ground heterogeneity

Reference	D14536
Principal Investigator / Supervisor	Professor Peter Gregory
Co-Investigators / Co-Supervisors	Professor John Crawford, Professor Stephen Jarvis, Dr Edward Morton, Professor Philip Murray, Professor Iain M Young
Institution	University of Reading
Department	Geography and Environmental Sciences
Funding type	Research
Value (£)	503,292
Status	Completed
Type	Research Grant
Start date	01/04/2001
End date	31/03/2005
Duration	48 months

Abstract

Our aim is to investigate the effects of above- and below-ground heterogeneity on the life cycle of Sitona and their consequences for the distribution of host plants and cycling of nutrients. Using non-invasive imaging techniques, stable isotopes, GC-MS, DSMS (dynamic sampling mass spectrometry), clover germplasm and individual-based modelling techniques, we shall undertake a programme of experimental and modelling studies to : i) determine the signal between clover roots and Sitona and the chemotactic response; ii) determine the impact of Sitona on clover and the influence of the heterogeneity of host distribution; iii) quantify C and N release from roots and effects of root herbivory on clover distribution.

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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