Genotypic and Phenotypic Correlation Analysis of Morphological and Yield-contributing Traits in Mustard (Brassica juncea L.) Genotypes Under Organic Conditions
Subhi Singh
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.), India.
Mahipat Singh
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.), India.
Anurag Dubey
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.), India.
Mousmi Syed *
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.), India.
Ekta Sahu
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.), India.
*Author to whom correspondence should be addressed.
Abstract
The present study was undertaken to estimate the genotypic and phenotypic correlations among eleven morphological and yield-contributing traits in twelve mustard (Brassica juncea L.) genotypes grown under organic conditions at Bundelkhand University, Jhansi, during the rabi season of 2024–2025. Understanding these relationships is essential for improving the efficiency of selection for yield and its component traits. Strong and significant genotypic and phenotypic correlations were observed among several traits. Genotypic correlations were generally stronger than phenotypic ones, indicating a stronger inherent genetic relationship among traits beyond environmental influence. Seed yield per plant (SYP) was significantly and positively correlated at the genotypic level with number of seeds per siliqua (NSS), number of siliquae per plant (NSP), and biological yield (BY), indicating their importance as selection indices. Negative associations were also observed between plant height (PH) and total branches (NTB), suggesting trade-offs in trait selection. The study provides valuable insights for mustard breeders aiming to develop high-yielding varieties suitable for organic farming systems.
Keywords: Mustard genotypes, correlation analysis, genotypic association, phenotypic traits, yield components, organic farming