Resumen

MARQUEZ-VASALLO, Yarisyen; SALOMON-DIAZ, Jorge Luis  y  ACOSTA-ROCA, Rosa. Morpho-agronomic characterization and genotype-environment interaction analysis in potato cultivars. cultrop [online]. 2023, vol.44, n.1  Epub 28-Ene-2022. ISSN 1819-4087.

The study of genotype-environment interaction is one of the determining factors in the selection and recommendation of cultivars, which allows increasing the efficiency of genetic improvement. With the objective of morpho-agronomically evaluating and analyzing the interactive effects of 16 potato cultivars with the environment, these were evaluated in three localities of the country during two years, considering 2015-2016 and 2016-2017 agricultural seasons. From the Analysis of Variance performed and the study of the interactive effects of the traits with the environment, the existence of significant differences between cultivars was determined and the stability analysis was proceeded, using the AMMI model and the Biplot GGE graph. Variability was found in the behavior of the qualitative and quantitative traits evaluated, allowing the detection of the greatest interactions between the latter and the environment. In this regard, the most stable cultivars in the environments evaluated for each quantitative trait were identified, as well as those with the greatest specific adaptations to the environments studied. Due to its significance, for the first time in Cuba, information on this subject is available, which could be used not only in the breeding programs developed in the country, but also as a criterion to outline strategies for crop diversification by the associated ministries.

Palabras clave : Solanum tuberosum L.; adaptation; stability; genetic improvement; selection.

        · resumen en Español     · texto en Español | Inglés     · Español ( pdf ) | Inglés ( pdf )