Stability and G X E Interaction Studies in Mungbean (Vigna radiata (L.) Wilczek)

Abstract

The present study was conducted to evaluate the stability of various mungbean (Vigna radiata   L.) genotypes across multiple agronomic traits under varying environmental conditions. Stability analysis was performed for eleven key traits including days to 50% flowering, days to maturity, plant height, number of primary and secondary branches, number of clusters and pods per plant, number of pods per cluster, number of seeds per pod, 100-seed weight, and seed yield per plant. Genotypes such as TPM-260, AKM-4, BM 2002-1, BM 2003-2, BM 2021-1, and BM 2021-2 consistently showed average to above-average stability across several traits, indicating their adaptability to a wide range of environmental conditions. Conversely, genotypes like PKV Green Gold and BM 2002-1 exhibited below-average stability for key yield-contributing traits, suggesting their sensitivity to environmental variation. These findings are supported by previous studies including Naik (2008), Nath (2012), Singh and Sharma (2014), and Borude (2017), among others. The results provide valuable insights for selecting stable genotypes for breeding programs aimed at enhancing mungbean productivity and stability across diverse agro-climatic zones.