Advanced clones of sweet potato with high yield and good suitability for processing in three environments in Peru

Abstract

Objectives: To determine the production potential, processing quality and phenotypic stability of new sweet potato clones suitable for industry. Methodology: The research was carried out in three tropical environments in Peru: San Ramón (Junín), Oxapampa (Cerro de Pasco) and La Molina (Lima). Evaluations of the agronomic and processing characteristics were carried out to determine the genotype by environment interaction in 20 advanced clones of the International Potato Center, using a randomized complete block design with 2 replications for each location and combined analysis of variance for each variable. Results: In all localities, the magnitude of the genotype x environment interaction was significant (P<0.05) for most of the variables under study. The advanced clones of CIP 102022.5, 199027.1 and 199076.4 obtained a high yield of starch per hectare. The clones that stood out for their yield were: 102021.5, 102022.5, 102028.7, 102025.3 and 103094.2; also for their high starch content, clones 102022.5, 199076.4 and 199024.7 Conclusions: There was a significant influence of the genotype x environment interaction on the agronomic and processing characteristics of the advanced sweet potato clones under evaluation, some of which can potentially be considered as new varieties for the industry.