Tune in to BBC’s Food Programme on Sunday 13 September at 12:32 BST (GMT+1) to listen to Sheila Dillon who looks at work to promote indigenous vegetables in Africa, an attempt to improve nutrition, maintain genetic diversity and respond to concerns about climate change. Are there lessons for developed nations as well?

Tune into BBC Radio 4 or access through the internet. For more details visit http://www.bbc.co.uk/programmes/b006qnx3