The department for environment food and rural affairs (DEFRA) has given the green light for genetically modified plants to be grown.

Rothamsted Research in  Hertfordshire has been given statutory consent  to carry out a small-scale field trial of GM camelina plants, modified to produce omega-3 polyunsaturated fatty acids in its seed oils.

The trial, said to be the first field trial of nutrient-enriched crops in the UK, is due to start this spring and run until 2017.

Omega-3 polyunsaturated fatty acids are known to be beneficial for heart health and protect against heart disease and the trial is being heralded as a possible answer to the problem of over-fishing.

However, the Soil Association's Head of Policy, Emma Hockridge said;

 "This is a waste of scarce public funds by Rothamsted Research – it is choosing to carry out trials of GM Camelina when two non-GM Omega 3 producing crops are already available to UK farmers. Government scientists in the US have recently confirmed that GM crops do not yield any more than non-GM crops, and sometimes even less. GM crops are making farming less fair, more risky and no more sustainable.