Dissection of genotype × environment interaction for selection of elite stable genotypes of cumin (Cuminum cyminum L.)

Abstract

Cumin (Cuminum cyminum L.) is a versatile seed spice containing 2-4% essential oil with a distinctive aroma and flavor. About 21 diverse cumin genotypes were evaluated for their stability under field conditions over three consecutive years in the rabi seasons. The phenotypic stability of cumin genotypes for seed yield was analyzed using multivariate analysis through AMMI and GGE biplots. Which-won-where biplot identified MCU-6 as a high-yielding vertex genotype for E1 environment, while MCU-73 and MCU-105 were suitable for E2 and E3. The multi-trait stability index identified three genotypes, namely MCU-73, MCU-105, and MCU-25, with higher phenotypic stability and mean performance across all the traits studied. The identified genotypes may be recommended for cultivation.