Introducción al cultivo in vitro de cultivares nativos de papa de la Sierra Sur del Ecuador

Abstract

Abstract:The potato (Solanum tuberosum) is a staple food crop of great economic importance worldwide. Native potato cultivars in Ecuador are classified within the species S. tuberosum sbs. andigena and S. phureja. This study focused on the in vitro introduction of the cultivars chaucha tomate and chaucha rosada, of the species S. phureja, native to the Southern Highlands of Ecuador, for conservation purposes. Treatment 27 was identified as the most appropriate for the tomato bean, with a pre-disinfection with propiconazole during a 3-hour immersion using a 0.3 PPM + Coco medium. While for the pink bean, treatment 17, with a 3-hour pre-disinfection with water and a 0.5 PPM medium, was most effective. It should be noted that in vitro introduction presented challenges in terms of adaptation, contamination, and cultivar development. This work contributes to the conservation and production of certified seed, which is key to mitigating the degradation caused by pests and diseases that threaten the preservation and productivity of these cultivars.