This was my attempt to show/document harvesting Papa Chonca, which sets tubers primarily on stolons and not in the traditional location where commercial potatoes set tubers, which would be just above the seed tuber.
Video links below, followed by pictures. You will see tubers formed at all levels of the bin. Yield is not great, and probably lower than the same potato in the ground, but Papa Chonca has the main traits you would ideally want in growing a potato in a bin. It constantly sends out stolons and tubers are found at all levels of the bin (except the very bottom, under the original seed tubers). I have never found this potato to flower, and some theorize that it is a very long season potato (240+ days). Thus it may require someone growing it in a different locale to be able to breed it for other traits such as better yield or larger tubers.
Part 1
http://youtu.be/eZzy3EgU3fw
Part 2
http://youtu.be/6-peGjsY9M8
Part 3
http://youtu.be/eOl9R1WyQCc
Part 4
http://youtu.be/Y3mtzPZUAOA
Part 5
http://youtu.be/Pkx1gLk3_uQ