Vol. 11, Issue 1 (2022)

Author(s):
Poonam Dhruw, PK Chandrakar and Rajeev Shrivastava

Abstract:
The present investigation was undertaken at the IGKV research and instructional farm in Raipur (C.G.) during rabi 2019-20. The experimental materials include 12 trait-specific elite germplasm lines with 3 checks collected from the Indian Institute of Oilseeds Research IIOR, Hyderabad. Analysis of variance indicated that all the characters viz., rosette period, days to 50% flowering, days to maturity, plant height, number of primary branches plant^-1, number of capitulum plant^-1, 100 seed weight and oil content showed presence of significant variability, except traits like number of seeds capitulum^-1 and seed yield (g plant^-1). This showed that the chances of improvement in genotypes through characters showing significant variability are possible. Seed yield (g plant^-1), plant height (cm), and number of seeds capitulum^-1 had higher phenotypic and genotypic coefficient of variations. High heritability accompanied with high genetic advance was present in oil percentage followed by plant height (cm). It indicates presence of additive genes in the trait and suggested these traits were governed by non-additive genes thus, the direct selection with such characters would not be beneficial.