A glimmer of hope for Scottish seed potato growers, as Defra minister confirms exports to Northern Ireland will be allowed again from the autumn. On the Humber Estuary conservationists are encouraging seagrass to return by planting tens of thousands of seeds by hand. The agricultural industry spends millions of pounds a year on seeds for cereals, but where do farmers get them from and what happens to them before they’re sold? Presented by Caz Graham and produced by Beatrice Fenton.