Páginas 68-69.

Frost tolerance represents an important factor in rural high Andean communities, where native potatoes are their main source of food, and many of which are adapted to low temperatures, as well as wild potato species, that can confer greater adaptation to frost. The object of investigation was to select the progenies with introgression of Solanum commersonii., that present tolerance to frost, and have good agronomic characteristics, under the conditions of the community of Occopata, district of Santiago, Cusco. The methodology consisted of evaluating the progenies under study during three agricultural campaigns, in an area that frequently presents frosts. The degree of damage affected by frost, the level of recovery and the yield at the end of the vegetative period were evaluated. From the results obtained in the first agricultural campaign, the progeny “Superior Haploid + cmm fus” wa...

Frost tolerance represents an important factor in rural high Andean communities, where native potatoes are their main source of food, and many of which are adapted to low temperatures, as well as wild potato species, that can confer greater adaptation to frost. The object of investigation was to select the progenies with introgression of Solanum commersonii., that present tolerance to frost, and have good agronomic characteristics, under the conditions of the community of Occopata, district of Santiago, Cusco. The methodology consisted of evaluating the progenies under study during three agricultural campaigns, in an area that frequently presents frosts. The degree of damage affected by frost, the level of recovery and the yield at the end of the vegetative period were evaluated. From the results obtained in the first agricultural campaign, the progeny “Superior Haploid + cmm fus” wa...

This breeding project, initiated at the United States Potato Genebank (USPG) in collaboration with Peruvian partners Instituto Nacional de Innovacion Agraria (INIA), International Potato Center, Peru (CIP), and local farmers, sought to enhance cold hardiness and frost tolerance in native potato cultivars in Peru. The Andes and Altiplano are often affected by frost, which causes significant reduction in yield; creating varieties with superior resilience is a critical undertaking. The goal was to transfer outstanding non-acclimated cold tolerance and acclimation capacity found in wild potato species Solanum commersonii (cmm). Breeding families segregating for cold hardiness were created using (a) a somatic hybrid cmm + haploid Solanum tuberosum (tbr) (cv. Superior, US variety from Wisconsin) as male and (b) seven cultivars native to Peru of the species S. tuberosum sbsp. andigenum (adg) as...