GGE biplot vs. AMMI analysis of genotype-by-environment data on essential oil yield in lemongrass [Cymbopogon flexuosus (nees ex. Steud) wats.] grown in semi-arid tropical regions of southern India under different agro-climatic conditions
2022
Kumar, A. | Jnanesha, A.C. | Kumar, V.M. | Lal, R.K.
Lemongrass is grown for its essential oil as well as citral content. Lemongrass is an aromatic grass that contains essential oil with a lemon fragrance. This study aims to see how consistent essential oil production and other relevant characteristics were in multiple locations. For oil yield (kg/ha), citral (%), and other examined features, the present study found highly significant genotype locations/environment interactions. For the oil yield (kg/ha) and citral percentage, the genotype × locations interaction was less than the influence of genotypes throughout the locations. The traits X1 × X8, and X4 × X5 were positively associated and highly significant in all four locations (Vijayanagara, Rayagada, Koraput, and Rangareddy districts in the Indian states of Andhra Pradesh, Odisha, and Telangana). Based on the behavior of associations across different locations, trait selections will be advantageous. We recommend three winning lines for high essential oil yield: L-4, L-1, and L-2, and genotypes L-4, L-1, and L-2 for high citral content (%) as stable lemongrass genotypes. The fraction of citral content with a pronounced lemon scent ranged from 70.59 to 73.20 percent in these stable genotypes. These lemongrass genotypes may be subjected to a national evaluation trial before being commercially cultivated.
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