Assessment of stability and yield performance of onion (Allium cepa L.) genotypes across diverse Indian environments.

ABSTRACT: Onion productivity in India is strongly influenced by genotype × environment interaction (GEI), complicating the identification of stable and high-yielding cultivars. Nineteen onion genotypes were evaluated in multi-environment trials across six diverse locations during two consecutive kharif seasons (2023-24), with locations treated as six distinct environments (E1-E6). Combined ANOVA revealed significant effects of genotypes, environments, and their interactions, indicating substantial GEI. AMMI analysis identified RO-1771 (G15), RO-1768 (G13), and RO-1774 (G17) as the most stable and high-yielding genotypes, while Junagadh (E3) was the most representative and discriminating environment. The first two principal components of the GGE biplot explained 83.86% of total GEI variation, efficie

SUBMITTER: Gupta AJ 

PROVIDER: S-EPMC12775375 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature