What plant requirement is the cusichaca andina group working to preserve

The Cusichaca Andina is the name of an organization, which is attempting to preserve a small, pink potato from the Andes, known as huana. It is considered one of the perfect crops for uncertain times, as it resists extreme rain, frost, and drought. It can be stored for two to three years.  

The organization is also trying to revive the irrigation facility, which Incas utilized in the Andean region, and researching other conventional crops, like amaranth, quinoa, squashes, and potatoes.