Mingo, a six-rowed spring feed barley (Hordeum vulgare L.), is the first barley cultivar developed by the doubled haploid method. It has a high yield, high test weight and good threshability. It took only 5 yr from the time when the parental lines were crossed to the time when Mingo was licenced on 28 March 1979. Breeder seed of Mingo is maintained by CIBA-GEIGY Seeds Ltd., Ailsa Craig, Ontario.