Correlation and Path Analysis Studies for Yield and Yield Attributes in Recombinant Inbred Lines in Cotton (Gossypium hirsutum L.)

Author: Sainath, B.R. Patil, Rajesh S. Patil, Spurthi N. Nayak, Maruthi Prasad B.P., Aishwarya B. and Akshaya M.

Download PDF

Abstract

The poor fibre quality and susceptibility of the cotton genotypes to the sucking pests serves as a major setback to the cotton growing community of the country. The present study consists 390 Recombinant inbred lines along with 6 checks which were evaluated in augmented design. The experiment was conducted in botanical garden, University of Agricultural Sciences, Dharwad during kharif 2021. The identification of the strength and kind of relationships between economically significant yield components that contribute to yield in order to increase cotton yield. The correlation study revealed that seed cotton yield was significantly and positively correlated with number of sympodial branches plants-1, number of bolls plant-1, boll weight and lint yield plant-1.Whereas, it had negative association with ginning outturn, seed index and lint index. Path coefficient analysis revealed that plant height, total number of monopodial branchesplant-1, number of sympodial branches plant-1, boll weight, seed index and lint yield plant-1 had a favourable direct effect on seed cotton output, indicating that selecting for these traits would be quite successful in enhancing seed cotton yield in cotton. The objective of this study is to improve the fibre quality and overall productivity through use the recombinant inbred lines.

Keywords

Correlation, recombinant inbred line, path coefficient, association, augmented design and seed cotton yield

Conclusion

The present investigation revealed that seed index, number of monopodial branches plant-1, lint yield plant-1, number of bolls plant-1, number of sympodial branches plant-1, ginning outturn and boll weight played a major role in cotton yield and fibre improvement of cotton. These characteristics should be considered as significant selection criteria for seed cotton yield improvement in cotton.

References

-

How to cite this article

Sainath, B.R. Patil, Rajesh S. Patil, Spurthi N. Nayak, Maruthi Prasad B.P., Aishwarya B. and Akshaya M. (2022). Correlation and Path Analysis Studies for Yield and Yield Attributes in Recombinant Inbred Lines in Cotton (Gossypium hirsutum L.). Biological Forum – An International Journal, 14(4): 539-542.