S. candolleanum is a wild relative of the domesticated potato and is native to Bolivia. Plants are small and produce small, white tubers. While they are edible in small quantities, this species doesn’t generally yield enough to grow for that purpose. We have a few varieties that produce two inch tubers, so this species might hold some promise for breeding even without crossing to domesticated potatoes. Generally, S. candolleanum is used in breeding programs to introduce wild traits to domesticated potatoes, particularly resistance to Globodera and Erwinia spp. Our wild potatoes are not fully isolated, so while most of the seeds will be purely S. candolleanum, some may be crossed with other wild or domesticated potatoes. Any that are crossed may well turn out to be the most interesting of the batch. S. candolleanum is diploid with an endosperm balance number of 2, so it will cross successfully with many diploids.
25 seeds collected from mixed varieties or 3 tubers. The tubers may be of more than one variety or all the same.