Evaluación de las características agronómicas de tres cultivares de papa (Solanum tuberosum L) en el sector de Nitiluisa en el canton Riobamba-Chimborazo

Abstract

Based on the need for new potato varieties which provide economic benefits, higher yields and lower production costs, that present resistance to pests and diseases, satisfy the consumption habits of users, adapt to climatic changes and cause new problems to the crop, our purpose is to evaluate the agronomic characteristics of three potato cultivars in the Nitiluisa community of the Riobamba canton. The implemented methodology was based on the agronomic practices of producers in the area, where three potato cultivars were evaluated, using a Randomized Complete Block Design, with three treatments and three replications, studying variables such as productivity and phytosanitary status, for which information was collected as percentage of emergence, number of stems per plant, tuber size and yield in kg/net plot, as well as data on incidence and severity of late blight (Phytophthora infestans) and percentage of pest damage were obtained, and an economic and financial analysis was carried out. It was possible to determine significant and highly significant differences between the treatments in relation to the parameters evaluated, at least one of the cultivars complies with the agronomic characteristics favorable for the sector, and it was also obtained that the cost-benefit ratio is positive. In this case it is concluded that the INIAP Fatima variety presented better productivity and characteristics in relation to the phytosanitary status, so it would be of great benefit to cultivate in the community of Nitiluisa.