Resumo

CASTANEDA-GARZON, Sandra Liliana; ARGUELLES CARDENAS, Jorge Humberto; HERNANDEZ, David Ricardo  e  CASTRO NAVARRO, Olga María. Genotype x environment interaction in Elaeisguineensis and OxG Hybrids of oil palm in Colombia. Acta Agron. [online]. 2021, vol.70, n.2, pp.189-197.  Epub 03-Maio-2022. ISSN 0120-2812.  https://doi.org/10.15446/acag.v70n2.91874.

In Colombia, the oil palm growing-regions have different climatic conditions that influence the development and the crop yield. The crop production of seven tenera genotypes and nine OxG hybrids of oil palm (F1 and backcross) was evaluated between 2015 and 2017 in two oil palm areas, in a complete randomized block design with four replications and 20 palms per experimental unity. Combined analyzes of covariance were initially performed for tenera and OxG hybrid genotypes, considering the number of palms per experimental unit as a covariate, in order to establish the effect of genotypes (G) and the environment (E) in yield (kg/ plot). The environments and genotypes were classified using cluster analysis and yield stability analysis was made using AMMI model. In OxG hybrids, differences (a <0.0001) were observed in fresh fruit bunches (kg/plot) between environments, between genotypes and genotype x environment (GxE) interaction for yield (kg/plot), while differences (a <0.0001) in tenera materials were found between environments and in GxE interaction. Specific adaptation was identified in tenera T6, T1, and H14 in the environments Tu2017B, Li2016A, and Li2017A. General adaptation was observed in tenera T2 and T3, and OxG hybrids H11 and H15. Yield genotypes of T2 and T3 were 176.2 and 174.1 kg/plot, while H15 and H11 was 274.2 and 264.6 kg/plot. In tenera genotypes and OxG hybrids, the RFF yield was influenced by the GxA interaction.

Palavras-chave : AMMI; Elaeis oleifera; Elaeis oleifera x Elaeis guineensis; production.

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