Plans to grow genetically modified potatoes in Derbyshire have been abandoned because a farmer fears for his own safety.
The trial was due to be held on a farm near Draycott
At the beginning of December the government gave BASF Plant Science permission to grow potatoes in a field near Draycott and in Cambridgeshire.
But the Derbyshire farmer has pulled out, as he said he feared protests by environmental campaigners.
BASF said it was confident of finding an alternative site.
The farmer whose land was to be used for the trial has not been identified.
The GM potato crops are to be planted next spring. The trial will last several years.
A BASF spokesman said: "BASF is committed to the UK trials of GM potatoes and while it is disappointing that one of the sites is no longer available to take part in this important scientific programme, we are pleased to confirm that we are reviewing a number of suitable locations."