An approach to identify stable genotypes based on MTSI and MGDII indexes in okra [Abelmoschus esculentus (L.) Moench]

Okra (Abelmoschus esculentus [L.] Moench) is an annual vegetable crop grown in tropical and subtropical regions of the world. Okra genotypes perform differently under different environmental conditions. Plant breeders have long struggled with the phenomena of genotype x environment interaction, which is a prevalent issue in plant breeding programmes. The main aim of genotype selection is to find okra genotypes with productive traits that might perform better under varied environmental conditions. The Multi-Trait Stability Index (MTSI) and Multi-Trait Genotype-Ideotype Distance Index (MGIDI) were employed for identifying high-performing stable genotypes exhibiting multiple traits. In the current investigation, 42 okra accessions grown in different seasons were assessed for 12 morphological traits. The results obtained by MTSI and MGIDI indexes revealed that, out of 42, only 4 genotypes performed better across the seasons and the four genotypes (UAHS-8, UAHS-10, UAHS-11 and UAHS-19) were selected in the indexes. View on strengths and weakness as described by the MGIDI and MTSI reveals the strength of the ideal genotypes in the present work is mainly focused on average fruit weight and fruit yield per plant. Due to their distinctiveness and ease of use in interpreting data with minimal multicollinearity difficulties, MTSI and MGIDI serve as novel tool for simultaneous genotype selection processes in plant breeding programmes across multi environments.