Potato, Lookin’ Llumpy, 3 in vitro plantlets

In Vitro Plantlets Information and Growing Instructions

This is an OSSI open source variety. Click for more information about open source seeds

Lookin’ Llumpy is one of the first promising results from a project attempting to produce a potato similar to the famous Andean variety Llumchuy Waqachi that will grow better in the long days of summer in North America.  This is definitely an improvement, although not everything that I want.  It grows larger tubers, earlier, and with a much better yield.  It has beautiful red flesh and good flavor.  The cross that produced this variety was Loowit x (GB seedling x Llumchuy Waqachi) and the name reflects that parentage.

Reproducibility Score: 20

Practicality Score: 70

Culinary Traits

This is a thick-skinned, starchy potato that makes a good baker.  At full maturity, tubers fall into the 3-8 inch range, with many reaching 8-12 ounces.  They get impressively lumpy as they grow larger, but smaller tubers are less remarkable.  Flavor is good, strong but not bitter, and texture is on the starchy side.  When cooked, the flesh becomes uniformly pink.

Agronomic Traits

This is a late variety with excellent yields.  The 2022 harvest averaged 4.7 pounds per plant and 2023, which was a little drier and warmer, averaged 4.2.  Tuber dormancy is intermediate.  Stolons are short and tubers cluster closely under the base of the plant.  Plants are very large and I would not space them any closer than 12 inches.  Skin is normally netted under my conditions.  Fairly vulnerable to common scab under dry conditions, a trait that is unfortunately common in progeny of Loowit.  On the other hand, it appears that it may have some resistance to powdery scab.  This is a tetraploid variety and is self-fertile.  Plants flower moderately and set plenty of seed, but considerably more with some pollination help, at least under my conditions.