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Developing new, high quality varieties of raspberries which will crop over an extended season - HH3716SSF

The aim of this research is develop a range of new varieties with excellent fruit quality that will crop in succession from early June until late October in the open field, and even longer under tunnels. Growers and Producer Organisations are very keen to supply fresh raspberries to the major multiple retailers for a much longer season than they do at present. The lack of good quality varieties that crop outside the main season is currently a limiting factor in an otherwise buoyant industry. New, improved early- and late-ripening summer fruiting and primocane fruiting varieties are needed to extend the fresh fruit season and increase sales of UK raspberries. Genetic pest and disease resistances are highly desirable as they will reduce pesticide application, reduce growing costs and extend the life of raspberry plantations. Reduction in pesticide use is also widely supported by consumers. The proposed project will build on progress made in HH1027SSF and earlier MAFF commissions. Elite selections from earlier work are currently on trial and new material produced and evaluated during the life of this project will feed into future industry-funded trials. The project will involve collaboration with the raspberry breeding programme at SCRI, Dundee and will involve significant input (financial and in-kind) from all sectors of the raspberry industry. The input will be realised through the establishment of a formally constituted consortium (legal Collaboration Agreement under negotiation) comprising Producer Organisations (POs), propagators and growers via the East Malling Trust for Horticultural Research and the HDC. The work described in this proposal (funded by Defra and the Consortium) will produce and identify elite selections which the breeder and Consortium Members collectively consider to have commercial potential. These elite selections will be multiplied up and trialled by the Consortium members at their additional expense. Results from individual trials will be reported in a common format and will be shared by all Consortium members with a collective decision made by the Consortium regarding the commercial release of any promising selections. Growers will learn about potential new varieties through HRI/HDC/Meiosis raspberry grower events organised at East Malling and on growers' holdings, articles in the trade press, presentations at Fruit Focus and the Soft Fruit Conference. This project is relevant to the Defra policy objective to promote sustainable, diverse, modern and adaptable farming and to deliver consumers with competitively priced, high quality, safe, nutritious fresh produce over an extended season. The primary objective of the project will be to maximise availability of new, improved raspberry varieties to the UK growers and consumers. Growers and POs are very keen to have new varieties and the programme will be set up so that there is good feedback from the industry to the breeder and good pull through of the products from the programme to the industry. By the end of this project, we aim to produce an early-ripening summer fruiting variety with better disease resistance than Glen Moy, a very late-ripening, spineless variety and a primocane variety with fruit quality on a par or better than Joan Squire, but with better pest and disease resistance.
1. To produce a range of summer and primocane fruiting raspberry varieties, suitable for the fresh market, which crop in sequence over an extended season. 2. To evaluate summer and primocane fruiting selections under polythene tunnels and select those with commercial potential to go forward for industry-funded grower trials.3. To develop an effective screening proceedure to identify germplasm with resistance to raspberry root rot (Phytophthora fragariae var. rubi)4. To improve collaboration with the Scottish raspberry breeding programme.5. To transfer knowledge to the raspberry industry and to transfer advanced selections generated under objectives 1-3 to industry-funded trials on grower farms.
Project Documents
• Final Report : Developing new, high quality varieties of raspberry which will crop over an extended season   (1513k)
Time-Scale and Cost
From: 2003

To: 2008

Cost: £893,575
Contractor / Funded Organisations
East Malling Research, Horticulture Research International
Allocated - EMR              
Disease Control              
Pest Control              
Sustainable Farming and Food              
Fields of Study