The need to invest in technologies and equipment could be hampered by the budget because growers fear they will be unable to get the funding they need.
English Apples & Pears chief executive Adrian Barlow said: "The discontinuation of regional development agencies will be disadvantageous. The South East England Development Agency, for example, put a lot into the development of new packhouses and other equipment.
"There's no clarity about the future of the School Fruit & Vegetable Scheme. Its retention is important because its bound to have an effect on consumption of fresh produce in the future."
Stockbridge Technology Centre chief executive Graham Ward added: "I find it difficult to understand how the industry will be able to communicate with central Government without the development agencies. Our office in Leeds is our link with Westminster, such as business development money available to growers. But that will cease to exist next year."
Halsham Salads director Les Deeley said: "The biggest concern for us is whether the cuts affect banks' confidence and the banks do not lend us money." But Chris Atkinson, head of science at East Malling Research, said the industry should at least be encouraged by the Government's pledge to protect investment in science.