Identification of stable genotypes under different environments in Taramira (Eruca sativa Mill.)

Abstract

This study was designed to analyze the stability of thirty genotypes of Taramira (Eruca sativa Mill.) and was evaluated over four environments during Rabi 2022–23 at Experimental Farm, Sri Karan Narendra College of Agriculture, Jobner, Rajasthan for various yield and yield attributing traits. Yield stability was analysed employing Eberhart and Russell’s model, which revealed significant differences among genotypes x environments (linear) for most of the characters except siliqua length and 1000-seed weight. Environment + (G x E) was significant for most of the characters except siliqua length and pooled deviation was also significant for all the traits except for maturity, primary branches per plant, siliqua length and seeds per siliqua. Stability parameters for seed yield revealed that the genotypes viz., RTM-1351, RTM-1591 and RTM-1829 were identified as the most acceptable and consistent performers for seed yield per plant. Whereas RTM-314, RTM-1613 and RTM-1822 were showed non-significant deviations coupled with bi values higher than unity (bi>1), indicating that they were specifically suited for a better environment with good management. The identified stable and superior genotypes may serve as valuable genetic resources for selection and hybridization. Further, these genotypes can be tested in multi-location trials for wider adaptability and potential varietal release.