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Genetic improvement of lettuce. - HH0904SFV

i) To produce high yielding, good quality main season iceberg lettuce breeding lines similar to the current dominant variety Saladin but with effective resistance to the main UK pests and diseases: lettuce root aphid (Pemphigus bursarius), peach potato aphid (Myzus persicae) downy mildew (Bremia lactucae) lettuce big vein virus (LBVV), and beet western yellows virus (BWYV).
(ii) To produce fast maturing good quality icebery lettuce breeding lines for early and late season production with effective resistance to the main UK pests and diseases given above.
(iii) To devise techniques for screening for resistance to bottom rot (Sclerotinia sclerotiorum). collect available reported putative sources of resistance and screen them for resistance.
(iv) To devise strategies for the deployment of host resistance and assess the durability of resistance by conducting population studies of B. lactucae and Pemphigus bursarius.
(v) To devise, develop and apply techniques to speed up and increase the efficiency of breeding in lettuce.
Time-Scale and Cost
From: 1994

To: 1999

Cost: £897,604
Contractor / Funded Organisations
Horticulture Research International
Fields of Study