Peteroa-INIA is a new triticale, XTriticosecale Wittmack, created by the Wheat Breeding Project at the Carillanca Research Center of the Instituto de Investigaciones Agropecuarias (INIA). The cross was conducted in 1993 and corresponded to: Tca 3050-90//Tca 28-87/Temu 351-87, where the two Tca progenitors were advanced lines of triticale, and Temu 351-87 was an advanced alternative wheat (Triticum aestivum L.). All the lines were developed at the Carillanca Research Center. The pedigree is TT-6148-t-3t-2t and its internal name in the project is Tca 3504-99. Peteroa-INIA is a variety with a facultative growth habit, with a period from sowing to heading 6 and 15 days longer than the current commercial triticale cultivars Calbuco-INIA and Tolhuaca-INIA, respectively. The mean plant height was 108 cm, 30 cm shorter than the above-mentioned commercial varieties. It has a compact, bearded and light brown spike, and its 1000 grain weight varied between 36.3 and 41.8 g. It is resistant to stripe and leaf rust. Its mean yield, based on three years of trials, was 10.37 t ha-1. The bread quality analysis indicated that it can be assimilated to a soft wheat, and the bromatological analysis of the grain showed higher protein content and better general indices than those of Calbuco-INIA, the commercial variety currently most used for animal feed in Southern Chile.