Vol. 10, Issue 12 (2021)

Author(s):
Gururaja M, R Nandini, DL Savithramma, S Rangaiah and KM Haranikumar

Abstract:
Niger (Guizotia abyssinica (L. f.) Cass) is a minor seed oil crop in India. Niger seeds contain 35-40 per cent oil and seed oil is good for human consumption. To assess the variability for yield and its yield attributing traits and also to derive the population for high yield and oil content by using mass selection, the study was carried out using 54 niger germplasm lines along with three standard varieties such as KBN-1, NO.71 and LOCAL for check using augmented design. Analysis of variance showed significant differences among the germplasm lines and also germplasm lines v/s checks. A wide range of variability was recorded for all yield attributing components. The high phenotypic and genotypic coefficient of variation was recorded for traits primary branches, secondary branches, number of capsules per plant. The PCV and GCV was observed moderate for capsule diameter, number of seeds per capsule, test weight and seed yield per plant and low for plant height, days to 50 per cent flowering and oil percentage. High heritability combined with high genetic advance was observed for primary branches, secondary branches, number of capsule per plant, capsule diameter and seed yield per plant. High heritability with moderate genetic advance was observed for plant height, days to 50% flowering, number of seeds per capsule. While high heritability with low genetic advance was observed for test weight and oil content.