Study of Genetic variability in Safflower (Carthamus tinctorius L.)

Author: Parth Gulati, Rajeev Shrivastava, Surbhi Verma, Naresh Kumar Sahu and Aditya Kukreti

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Abstract

The present experiment was conducted at the Research cum Instructional farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, during rabi 2021-22 in order to study the genetic parameters and correlation among yield contributing traits in safflower. Eighteen safflower genotypes including 3 checks viz., A-1, PBNS 12 and IGKV kusum were evaluated. The largest levels of genotypic and phenotypic variability were reported for traits like biological yield per plant, seed yield per plant, number of capitula per plant, harvest index, and 100 seed weight. For variables like plant height, seed weight per hundred seeds, biological yield, and seed yield per plant, high heritability with high genetic advance estimate has been estimated. Association studies indicated that seed yield per plant is positively correlated with number of primary branches per plant (0.117), number of capitulum per plant (0.108), 100 seed weight (0.216), harvest index (0.462**) and oil content (0.371**) while shows negative association with days to 50% flowering (-0.257), days to maturity (-0.006) and plant height (-0.532**). Oil content exhibited significant positive correlation with biological yield / plant (0.649**).

Keywords

Safflower, PCV, GCV, heritability, genetic advance, correlation, oil content, seed yield

Conclusion

The values of PCV were higher than the values of GCV indicated the various amount of influence of environment in different traits existed which also confirmed by the percentage of heritability. Traits like oil content, plant height, days to 50% flowering, days to maturity and 100 seed weight had high heritability indicating stable inheritance of these traits from generations without much influence of environment. While harvest index and seed yield/plant had minimum heritability i.e., much influenced by environment. The lowest heritability was noticed for biological yield/plant. Association studies indicated that seed yield/plant is positively correlated with number of primary branches/plant, number of capitulum/plant ,100 seed weight, harvest index and oil content while shows negative association with days to 50% flowering, days to maturity and plant height.

References

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How to cite this article

Parth Gulati, Rajeev Shrivastava, Surbhi Verma, Naresh Kumar Sahu and Aditya Kukreti (2023). Study of Genetic variability in Safflower (Carthamus tinctorius L.). Biological Forum – An International Journal, 15(8a): 14-17.