|This variety is offered every year, barring disease or crop failure.|
Qoyllu is a Bolivian heirloom variety. It is a small, round, red diploid potato. Qoyllu is a Quechua word that translates to something like “luminous” or “resplendent.” Qoyllu was provided by the USDA Potato Introduction Station as PI 595444. I like this variety a lot and find it useful for breeding, so it will probably remain in the catalog indefinitely.
Qoyllu is a starchy potato, with light, dry, white flesh. It has the mild bitterness that most people describe as a strong “potatoey” flavor. This is a good potato for roasting or baking. It has thin skin and fairly shallow eyes, so it is easy to prepare.
Qoyllu is a short day variety and performs somewhat differently when grown in summer vs. fall. In summer, the plants remain relatively small, perhaps 16 inches tall, the stolons can be as long as 16 inches, and the tubers skew toward the smaller end of the size range, topping out at about 3 inches. In fall, the plants grow larger, the stolons are usually 12 inches or less, and the tubers can grow larger, occasionally reaching four inches in diameter. Summer maturity is about sixteen weeks under our conditions. Tubers are mostly in the 2 to 3 inch range and yields are about a pound per plant. This variety has very good dormancy and will overwinter without any sprouting from even a summer harvest. With sufficient pollination, it will set a perfect crop of berries.
True Seed (TPS)
TPS was collected in 2019 and 2020 and was open pollinated. It grew in a block with other high dormancy diploids and would guess that the majority of the progeny will be round reds or yellows with good dormancy. This seed came out pretty dirty. It happens sometimes. The debris is just bits of berries that didn’t separate well from the seeds. I increased the weight by 20% per packet to compensate.
1 gram packets contain approximately 1,100 seeds.