Global map of the 1,973 cultivars and breeding lines of sweetpotatoes tested as part of the study. (IMAGE)

Institut de recherche pour le développement

Global map of the 1,973 cultivars and breeding lines of sweetpotatoes tested as part of the study.

Caption

a. The yellow dots mark the origin of each of the cultivars studied on the test site (the red star). The blue dots indicate the location of the most heat-stress tolerant varieties. b. Drone maps of the 4,040 test plots on the test site in Piura, Peru. c. Close-up of the delineated plots of sweet-potato cultivars. d. High-resolution thermographic image of the temperatures of the crop canopy under conditions of heat stress (lowest temperatures in blue, highest in red).

Credit

© Bettina Heider et al. Nature Climate Change

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© Bettina Heider et al. Nature Climate Change

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