![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextgreen.png)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextred.png)
![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextgreen.png)
![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltext_open_medium.gif)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextred.png)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltext_restricted_medium.gif)
Genetic Diversity in Germplasm of Pigeonpea
Subscribe/Renew Journal
The genetic divergence among fifty-five genotypes of pigeonpea (Cajanus cajan) were evaluated for nine different characters and was estimated by Mahalanobis D2 statistic. The genotypes were grouped into seven clusters. The clustering pattern of the genotypes showed high degree of genetic diversity. The highest intra cluster distance was noticed for the cluster IV (D2 = 2.069) and the lowest for the cluster VII (D2 = 1.619). The highest intra-cluster distance was observed between clusters VI and III (D2= 4.598) where as the lowest inter-cluster D2 value was observed between cluster I and II (D2 =2.308). The cluster mean estimated for nine characters revealed that cluster IV had highest mean values for days to 50 per cent flowering, days to maturity and plant height. For seed yield per plant, highest mean was recorded for cluster VII and lowest for cluster II with over all mean of 69.05. Therefore, the result of the present study suggest that while selecting parents, inter-cluster distance must be taken into consideration so as to initiate a crossing programme to produce new recombinants with desired characters in pigeonpea.
Keywords
Divergence, Pigeonpea, Cluster
Subscription
Login to verify subscription
User
Font Size
Information
- Dikshit, U.N. and Swain, D. (2000). Genetic divergence and heterosis in sesame. Indian J. Genet., 60: 213-219.
- Gaur, P.C., Gupta, P.K. and Kishore, H. (1978). Studies on genetic divergence in potato. Euphytica, 27: 361-368.
- Griffing, B. and Lindstorm, E.W. (1954). A study of combining abilities of corn inbreds having varying proportions of corn belt and non corn belt germplasms. Agron. J., 46: 545-552.
- Jain, S.K., Qualest, C.O., Bhatt, G.M. and Wu, K.K. (1975). Geographical patterns of phenotypics diversity in a world collection of durum wheats. Crop Sci., 15: 700-704.
- Mahalanobis, P.G. (1936). On the generalized distance in statistics. Proc. Nat. Institute Sci. India., 12: 49-55.
- Murthy, B.R. and Arunachalam, V. (1966). The nature of genetic divergence in relation to breeding system in crop plants. Indian J. Genet. & plant Breed., 26A: 188-189.
- Natarajan, C., Thiyagarajan, K. and Rathnaswanry, R. (1988). Association and genetic diversity studies in green gram. Madras agric. J., 75(7): 283-245.
- Parrota, J.A. (2001). Healing plants of peninsular India. CABI Publishing, Wallingford, NEWYORK, U.S.A.
- Rao, C.R. (1952). Advanced statistical methods in biometrical research. John Wiley and Sons. Inc., New York. pp. 351-364.
- Singh, K.H, Srivastava, K.K, Chauhan, J.S. and Kumar, Arvind (2006). Genetic divergence and stability analysis in Indian mustard, Brassica juncea (L.) Czern & Coss. J. Oilseeds Res., 23: 151-155.
- Sreelakshmi, Ch., Shivani, D. and Sameer Kumar, C.V. (2010). Genetic divergence and stability analysis in Pigeonpea (Cajanus cajan L.). Eectronic J. Plant Breed., 1(4):530-535.
![](https://i-scholar.in/public/site/images/abstractview.png)
Abstract Views: 337
![](https://i-scholar.in/public/site/images/pdfview.png)
PDF Views: 0