Morpho-agronomic characterization and genotype-environment interaction analysis in potato cultivars/Caracterizacion morfo-agronomica y analisis de interaccion genotipo-ambiente en cultivares de papa
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 cu...
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Published in | Cultivos tropicales Vol. 44; no. 1; p. 1 |
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Main Authors | , , |
Format | Journal Article |
Language | Spanish |
Published |
Editorial Universitaria de la Republica de Cuba
01.01.2023
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Subjects | |
Online Access | Get full text |
ISSN | 0258-5936 |
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Summary: | 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. Key words: Solanum tuberosum L., adaptation, stability, genetic improvement, selection. El estudio de la interaccion genotipo-ambiente es uno de los factores determinantes en la seleccion y recomendacion de cultivares, lo que permite incrementar la eficiencia del mejoramiento genetico. Con el objetivo de evaluar morfo-agronomicamente y analizar los efectos interactivos de 16 cultivares de papa con el ambiente, estos se evaluaron en tres localidades del pais durante dos anos, considerando las campanas agricolas 2015-2016 y 2016-2017. A partir de los Analisis de Varianza efectuados y del estudio de los efectos interactivos de los caracteres con el ambiente, se determino la existencia de diferencias significativas entre los cultivares y se procedio al analisis de estabilidad, utilizando el modelo AMMI y el grafico Biplot GGE. Se constato variabilidad en el comportamiento de los caracteres cualitativos evaluados, asi como en los cuantitativos, detectando en estos ultimos las mayores interacciones con el ambiente. Al respecto, fueron identificados los cultivares mas estables en los ambientes evaluados para cada caracter cuantitativo, asi como aquellos con mayores adaptaciones especificas a los ambientes estudiados. Por su significacion, se cuenta por primera vez para Cuba, con informacion al respecto, lo que podra ser utilizado no solo en los programas de mejora que se desarrollan en el pais, sino como criterio para trazar estrategias de diversificacion del cultivo. Palabras clave: Solanum tuberosum, adaptacion, estabilidad, mejoramiento genetico, seleccion. |
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ISSN: | 0258-5936 |