Vol. 10, Issue 4 (2021)

Author(s):
VD Chaturvedi, KN Maurya, DK Upadhyay, Piyush Kumar Singh and Shivam Chaubey

Abstract:
Seventy three varieties/strains of Indian mustard [Brassica juncea (L.) Czern. and Coss.] were evaluated during Rabi 2017–18 under irrigated condition. Analysis of variance on 11 quantitative traits was carried out. The mean, range, phenotypic, genotypic and environmental variance, genotypic and phenotypic coefficient of variation, divergence were calculated. Path coefficient analysis was carried out using correlation coefficients to know the yield-contributing traits having true associations with seed yield. Improvement in seed yield can be achieved by selection using the correlation and path analysis data generated in this study. The genotypes QM 16-2, QM 16-3, QM 16-4, NDRE 7 and NDRS 2008 produced high seed yield per plant and these five lines constituted significant group for higher seed yield per plant. The above mentioned genotypes also showed high to very high mean performance for several other yield components. Seed yield per plant showed positive association with number of siliqua on main raceme followed by number of primary branches per plant. Path analysis identified number of siliqua followed by number of primary branches per plant as major direct contributors towards expression of seed yield per plant while number of seeds per siliqua, test weight and plant height emerged as most important indirect yield component. The material used in the study is of diverse nature and can be used in the breeding programme for development of improved genotypes in mustard.