Genetic divergence in cowpea (Vigna unguiculata (L.) Walp.)
DOI:
https://doi.org/10.59797/jfl.v28i1.1019Keywords:
D'statistic, genetic diversityAbstract
Based on D2 statistic, the forty genotypes of cowpea from different geographical origin were grouped into six clusters indicating wider genetic diversity. The clustering pattern indicated the absence of relationship between genetic diversity and geographical origin of genotypes. Based on genetic divergence, cluster means and per se performance, TC-2010-82, V-8981, JLCP-3, EC-343002, CP-105, Dhule Local, DLCP-1, PCP-23-2, Phule-CP-05040, KBC-1-M, RC- 101 and TPTC-1 have been found to be genetically diverse. Intercrossing among them would lead to upgrade genetic base in the base population and opportunities to obtain high heterotic effects. It will helpful to recover desirable transgressive segregants and wide spectrum of variability in subsequent generations
References
Adewale, B. D., O. O. Adeigbe, and C. O. Aremu. 2011. Genetic distance and diversity among some Cowpea (Vigna unguiculata (L.) Walp.) genotypes. International J. Res. Plant Sci. 1(2): 9-14.
Dalsaniya, S. B., V. K. Poshiya, J. J. Savaliya, A. G. Pansuriya and B. K. Davada. 2009. Genetic divergence in cowpea [Vigna unguiculata (L.) Walp.]. Legume Res., 32(4): 250-254.
Kumawat, K. C. and R. S. Raje, 2005. Association analysis in cowpea [Vigna unguiculata (L.) Walp.]. J. Arid Legumes., 2(1): 47-49. Mahalanobis, P. C. 1936. On the generalized distance in statistics. Proc. Natl. Acad. Sci., 2: 55-79.
Nagalakshmi. R. M., R. Usha Kumari and M. B. Boranayaka. 2010. Assessment of genetic diversity in cowpea (Vigna unguiculata). Electronic J. Pl. Breed., 1(4): 453-461.
Rao, C. R. 1952. Advanced statistical method in Biometrical Research. John Wily and sons, New York.
Thiyagarajan, K., and C. Natarajan. 1989. Genetic diversity in cowpea. Tropical Grain Legume Bull. 36: 2-3.
Venkatesan, M., M. Prakash and J. Ganesh. 2003. Genetic variability, heritability and genetic advance analysis in cowpea (Vigna unguiculata (L.) Walp). Legume Res., 26(2): 155-156.
