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Maintaining UK wheat performance through improved exploitation of drought-resistance traits

Reference	BBS/E/J/00003347
Principal Investigator / Supervisor	Professor John Snape
Co-Investigators / Co-Supervisors
Institution	John Innes Centre
Department	John Innes Centre Department
Funding type	Research
Value (£)	2,194
Status	Completed
Type	Institute Project
Start date	01/11/2000
End date	31/01/2002
Duration	15 months

Abstract

This MAFF funded project was set up in collaboration with the University of Nottingham and ADAS to investigate the genetical control of yield under drought conditions. Two approaches were applied. First, isogenic lines for major genes controlling plant development, in particular dwarfing genes and photoperiod insensitivity genes, were evaluated for their responses to drought conditions on a light land site with controlled irrigation. Results showed that the introduction of the Rht1 and Rht2 genes into UK agriculture had lowered the water use efficiency of new varieties, but overall, did not have an interaction with irrigation treatments. In contrast, earlier flowering provided by the Ppd1 gene allowed drought escape through earlier flowering and would be beneficial under conditions of late drought. The second approach was to analyze the genetical control of stem carbohydrate reserves (SCR) under drought conditions, where previous work had shown that high reserves was a beneficial trait. A recombinant doubled haploid population was produced and molecular marker mediated genetic analysis applied. QTL for SCR were found, a particular strong effect was associated with the 1B/1R translocation chromosome.

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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