Field, Lab, Earth, the podcast of the American Society of Agronomy, Crop Science Society of America and Soil Science Society of America has a couple of episodes out on the history of crop diversity conservation. The first is an interview with Dr Helen Anne Curry on genebanks.
And the second is a talk entitled “Varietal Timelines and Leadership Challenges Affecting the Legacy of Nikolai Ivanovich Vavilov” with Dr Joel Cohen. It’s freely available until 5 April.