Stability Analyasis of Yield and Yield Contributing Traits of Rabi Sorghum (Sorghum Bicolor)

Abstract

The stability of yield and its contributing traits is crucial for ensuring consistent productivity of Rabi sorghum across diverse environmental conditions. This study evaluated the performance and stability of eight Rabi sorghum genotypes (Phule Yashomati, Phule Anuradha, CSV-22, Parbhani Moti, Maldandi-35-1, Phule Uttara, Phule Madhur, and RSV-2371) across multiple environments. The experiment employed a Randomized Complete Block Design (RCBD) with three replications in each environment. Stability analysis was performed using Additive Main effects and Multiplicative Interaction (AMMI) model. The results revealed significant genotype-by-environment (GxE) interactions for grain yield and several yield-contributing traits. Genotypes Maldandi-35-1 and Phule Yashomati exhibited relatively stable performance and high mean yield, indicating their suitability for wider cultivation in the region. RSV-2371 and Phule Madhur were found to be adapted to specific environments and may be utilized in breeding programs targeting these particular conditions. The AMMI analysis effectively identified stable and adaptable genotypes, providing valuable information for sorghum breeding and cultivar selection in Rabi sorghum cultivation.