D. in plant virology from the University of Bath in the U.K. in 1991, she tried various conventional hybridization techniques to outbreed the viruses that wipe out the otherwise drought-resistant and energy-rich tuber.

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Back to the Roots has sold 300, 000 of the kits in the U.S. at outlets like Whole Foods, Nordstrom, and Bed Bath and Beyond stores.

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Lord Bates is delighted about having access to the resources of the U.K. Foreign Office, which has done everything from arranging meetings to getting a salt bath for his tired feet.

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