PI 611074 “Tumiri”
Solanum tuberosum subsp. andigenum 3x (Solanum x chaucha)
Authoritative accession: CIP 701568
A chaucha type triploid collected in Junin Peru in 1970.
Clone. Large plants. Dark purple stems. Floriferous. No detectable pollen. Tubers dark blue with light yellow flesh and partial blue ring. High yield. Long day tuberization. Moderate flowering and berrying. Very low seed set.
This variety sets berries readily and a guard cell chloroplast count was indeterminate for triploid/tetraploid, so I was skeptical that it is really a triploid potato. However, when I cut open some of the berries, they contained few or no seeds, so that seems to settle the question.