Open Access
Subscription Access
Open Access
Subscription Access
Genetic Diversity Analysis for Yield and Yield Componentsin Foxtail Millet [Setaria italica< i> (L.) Beauv.]
Subscribe/Renew Journal
Genetic diversity analysis helps in identification of the diverse genotypes for hybridization purposes and to derive desirable segregants. Knowledge on the nature and magnitude of genetic diversity present in the crop species will play an important role in formulating a successful breeding programme. In this regard a field experiment was conducted to study the genetic diversity analysis for yield and yield contributing characters using 149 germplasm accessions of foxtail millet. Based on D² values, a total of 149 genotypes were grouped into 15 clusters, among these clusters, cluster I was the largest with 134 genotypes followed by cluster VIII with 2 genotypes whereas remaining 13 were solitary clusters. Maximum intra cluster distance among the genotypes was recorded by cluster I having 134 genotypes followed by cluster VIII with two genotypes. The maximum intra cluster distance in the cluster I indicated the genotypes in this cluster were relatively more diverse than the genotypes within other clusters. The maximum inter cluster distance was found between clusters IX and XIV followed by cluster VI and XIV, while it showed least distance between clusters II and cluster V followed by clusters III and VI, thus it can be concluded that, considerable diversity existed among 149 lines. The per cent contribution of yield and yield contributing characters to total divergence among nineteen characters were recorded. It showed that maximum contribution towards divergence was recorded by number of tillers per meter row length and 1000 seed weight followed by number of productive tillers/plant, days to maturity, days to 50% flowering, grain yield/hectare and plant height indicating the major role of these characters in building up diversity and differentiating inter cluster levels.All the 149 genotypes were spread over fifteen clusters and means were scored across the clusters for all the nineteen characters. Cluster IV with overall score of 78 across the nineteen characters secured first rank followed by cluster VI, cluster I and cluster IX indicating the presence of most promising genotypes in them and can be extensively used for further breeding programme to generate new material.
Keywords
Foxtail Millet, Genetic Diversity, D² Values, Clusters, Yield Contributing Characters.
Subscription
Login to verify subscription
User
Font Size
Information
- Anonymous (2012). Quarterly Bulletin of statistics 2012, FAO, pp. 12 30.
- Mahalanobis, P.C. (1928). A statistical study at Chinese head measurement. J. Asiatic Soc. Bengal., 25: 301-307.
- Mahalanobis, P.C. (1936). On the generalized distance in statistics. Proceed. National Institute of Sci., (India), 2 (1) : 49-55.
- Maloo, S.R. and Bhattacharjee, I. (1999). Genetic divergence in foxtail millet. Recent advances in management of arid ecosystem, In : Proceedings of a symposium held in India, March, 1997, pp. 155-158.
- Murty, B.R. and Arunachalam, V. (1966). The nature of divergence in relationship to breeding system in some crop plants. Indian J. Genet., 26: 188-189.
- Murugan, R. and Nirmalakumari, A. (2006). Genetic divergence in Italian millet [(Setaria italica L.) Beauv]. Indian J. Genet., 66(4): 339-340.
- Nagarajan, K. and Prasad, M.N. (1980). Studies on genetic diversity in foxtail millet [Setaria italica (L.) Beauv]. Madras Agril. J., 67(1): 28-38.
- Rao, C.R. (1952). Advanced statistical methods in biometerical Research. New York, John Wiley and Sons.
- Selvarani, M. and Gomathinayagam, S.P. (2000). Genetic diversity in foxtail millet [Sataria italica (L.) Beauv]. Res. Crop., 1(3): 410-412.
- Sheriff, R.A. and Shivashankar, G. (1992). Genetic divergence in foxtail millet (Setaria italica). Indian J. Genet., 52(1): 29-32.
- Sheriff, R.A. (1992). Divergence analysis in finger millet (Eleusine coracana Gaertn.). Indian J. Genet., 52(1): 72-74.
Abstract Views: 303
PDF Views: 0