Scotland is to ban the growing of genetically modified crops, the country's rural affairs secretary has announced.
Richard Lochhead said the Scottish government was not prepared to "gamble" with the future of the country's £14bn food and drink sector.
He is to request that Scotland be excluded from any European consents for the cultivation of GM crops.
But farming leaders said they were disappointed by the move.
Under EU rules, GM crops must be formally authorised before they can be cultivated.
An amendment came into force earlier this year which allows member states and devolved administrations to restrict or ban the cultivation of genetically modified organisms within their territory.
Mr Lochhead said Scotland's request for opt-outs from GM crop consent would cover an EU approved variety of genetically modified maize and six other GM crops that are awaiting authorisation.
He said that Scotland was known around the world for its "beautiful natural environment" and banning the growing of genetically modified crops would protect and further enhance its "clean, green status".
Mr Lochhead added: "There is no evidence of significant demand for GM products by Scottish consumers and I am concerned that allowing GM crops to be grown in Scotland would damage our clean and green brand, thereby gambling with the future of our £14bn food and drink sector.
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Scotland to ban GM crop growing - BBC News