1Research Scholar, Department of Genetics and Plant Breeding, Faculty of Agriculture, Tantia University, SGNR-335002, Rajasthan, India.
2Professor and Dean, Department of Genetics and Plant Breeding, Faculty of Agriculture, Tantia University, SGNR-335002, Rajasthan, India.
3Assistant Professor, Department of Genetics and Plant Breeding, Faculty of Agriculture, Tantia University, SGNR-335002, Rajasthan, India.
*Email: asanchalsharma2003@gmail.com
Mustard is a widely cultivated oilseed crop in India, valued for its high yield potential and adaptability to both sole and intercropping systems. During the rabi season of 2024–25, thirty genotypes were evaluated in a randomized block design with three replications to assess genetic variability and character association for yield and its attributes. Significant genotypic and phenotypic variability was observed, particularly for siliqua per plant and seed yield per plant. Traits such as plant height and biological yield exhibited high heritability (>60%) coupled with high genetic advance, suggesting predominance of additive gene action and effectiveness of direct selection. Correlation analysis revealed that seed yield was positively associated with days to maturity, plant height, primary branches per plant, siliqua length, siliqua per plant and test weight, indicating potential for simultaneous improvement. Path coefficient analysis identified biological yield and harvest index as the most influential traits for seed yield. Among the genotypes, RGN-48, RGN-145, RGN-229 and RH-406 showed superior performance for yield-related traits. These findings provide valuable insights for mustard breeding programs aimed at enhancing productivity and stability.
Indian mustard, genetic variability, heritability, genetic advance, correlation, path coefficient
