Barley is by far Scotland's most important crop, and the world's fourth most important cereal crop.

Anna hears about Dundee's new International Barley Hub, a centre for research excellence within the James Hutton Institute.

We also meet Alison Milne who grows and malts barley at Crafty Maltsters in Auchtermuchty, and Professor Wendy Russell at the University of Aberdeen's Rowett Institute.

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This is the final episode in a 4-part OnFARM mini-series showcasing the world-leading work of SEFARI (Scottish Environment, Food and Agriculture Research Institutions), a partnership of six globally renowned institutions providing research and expertise to Scotland's agriculture, environment and food communities.