Genetic Divergence Studies in Pigeonpea [Cajanus cajan (L). Millips] Genotypes

Author: P.R. Chavan, V.K. Gite, D.K. Patil, V.R. Bhakad and A.A. Madake

Download PDF

Abstract

The experiment was conducted during Kharif-2023 for study of genetic diversity of 42 genotypes of pigeonpea using D2 statistics method of Mahalanobis. Genetic diversity of the forty two genotypes of pigeonpea was accessed for nine characters in a randomized block design with two replications at Agriculture Research Station, Badnapur. Forty two genotypes of pigeonpea were grouped into six clusters which indicated diversity. Cluster I had the maximum number of 24 germplasms, Cluster III had 9, Cluster II had 6, Cluster IV, V and VI had 01 germplasm each respectively. The highest distance between two clusters was existed between Cluster II and V (31.48) indicating greatest divergence. The maximum intra-cluster distance of 9.96 was noticed in cluster III. High yielding diverse genotypes viz., BDN-2013-02, AKTM-2117, BDN-2019-05 and BDN-2013-05 of cluster I and ICP-7952, ICP-7939, ICP-16553 of cluster II and BDN-2019-33 of cluster III may be used for future hybridization programme for further yield improvement in pigeonpea.

Keywords

Pigeonpea, Genetic diversity, Clusters and D2 Analysis

Conclusion

Out of the nine characters that were examined, the number of secondary branches was found to have the greatest contribution to genetic divergence followed by plant height, 100 seed weight, days to maturity, number of primary branches, days to 50% flowering, number of pods per plant, number of seeds per pod and seed yield per plant.

References

-

How to cite this article

P.R. Chavan, V.K. Gite, D.K. Patil, V.R. Bhakad and A.A. Madake (2024). Genetic Divergence Studies in Pigeonpea [Cajanus cajan (L). Millips] Genotypes. Biological Forum – An International Journal, 16(1): 76-78.