Stable clone selection for oil and herb yield using GGE biplot model in climate-smart lemongrass
K. V Ashwini, Gazala Parveen S and Channayya Hiremath
Abstract: Lemongrass, an industrially important aromatic grass known for its essential oil, exhibits phenotypic traits that are influenced by environmental factors. This study evaluated the stability and adaptability of 13 advanced lemongrass breeding clones over several years. Significant genotype and genotype × environment interaction (GEI) effects on herbage yield and essential oil yield highlighted the influence of genetic and environmental factors on these traits. The AMMI and GGE biplot analyses identified clone 5 as a high performing and stable genotype for herb yield. Meanwhile, clones 1 and 4 showed consistent performance across years and were desirable for essential oil yield due to their proximity to the abscissa of the biplot. These identified clones represent valuable genetic resources for future breeding programs aimed at developing superior lemongrass cultivars for commercial cultivation.