National Horticultural Forum warned of the worsening cash crisis in research and development (R&D) and said the Government was all-but irrelevant to industry problems.
The report, A Review of the Provision of UK Horticultural R&D, said: "Mechanisms for funding horticultural R&D in the UK are breaking down. The impact of new Defra science policies, introduced in 2006, is being felt.
"The new Defra approach has little relevance to technical problems and issues that growers must currently address, nor to the innovations they must pursue."
Funding gaps left scientists "following the money and creating a deficit in the skills and capacities relevant to production", it added.