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Linear Discriminant Function Analysis for the Different Characters of Pigeonpea (Cajanus cajan (L.) Millsp) Accessions


Affiliations
1 Department of Agricultural Statistics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741 252, India
2 Department of Genetics and Plant Breeding, Agricultural Research Station, Gulbarga UAS, Raichur-585 101, Karnataka, India
3 Department of Agronomy, UAS, Dharwad-580 005, Karnataka, India
4 Department of Plant Pathology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741 252, India
5 Department of Genetics and Plant breeding, UAS, Dharwad-580 005, Karnataka, India
6 Agriculture Research Station, Gulbarga, UAS, Raichur-585 101, Karnataka, India
7 Agricultural Statistics, Director of Research, B.C.K.V, Kalyani-741 235, West Bengal, India
 

Variations in different characters of the pigeonpea were studied using 122 accessions under rainfed condition during 2013. The characters considered viz., days to 50 per cent flowering, plant height (cm), days to physiological maturity, pods per plant, pod bearing length (cm), seeds per pod, 100 seed weight (g) and seed yield per plant (g) were used for the analysis. K-means cluster analysis was carried out based on the mean values and classified 122 accessions into four distinct clusters. The cluster-I (14 accessions), cluster- II (40 accessions), cluster-III (17 accessions) and in fourth cluster 51 accessions were distinctly classified. It is found that, days to physiological maturity, pods per plant, days to 50 per cent flowering and pod bearing length (cm) were significant discriminating characters. The stepwise discriminant analysis showed that pods per plant and days to physiological maturity were highly discriminating characters and these two characters were explained by the 98.8 percent variation in the accessions studied and these accessions were classified 97.5 percent correctly in the four clusters.

Keywords

Pigeonpea, Cajanus cajan, K-Means Clustering, Discriminant Function.
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  • Ae, N., Arihara, J., Okada, K., Yoshihara, T. and Johansen, V. 1990. Phosphorus uptake by pigeonpea and its role in cropping systems of the Indian subcontinent. Science, 284: 477-480.

  • Asante, I. K., Addy, R. and Carson, A. G. 2006. Use of linear discriminant function analysis in seed morphotype relationship study in 31 Lima beans (Phaseolus lunatus L.) accessions in Ghana. Ghana J. Agric. Sci., 39: 87-91.

  • Barone, E., Di Marco, L., Marra, F. P. and Sidari, M. 1996. Isozymes and canonical discriminant analysis to identify pistachio (Pistacia vera L.) germplasm. Hort. Sci., 31(1): 134-138.

  • Bennet-Lartey, S.O. and Ofori, I. 1999. Variability studies in some qualitative characters of cowpea (Vigna unguiculata (L.) Walp) accessions from four cowpea growing regions of Ghana. Ghana J. Agric. Sci., 32: 3-9.

  • Bolanga, C. J. and Timko, M. P. 2005. An improved genetic linkage map for cowpea (Vigna unguiculata (L.) Walp). Department of Biology, University of Florida, Florida, USA.

  • Cobbinah, F. A., Asanteand, I. K. and Addo-Quaye, A. A. 2012. Use of linear discriminant function analysis in five yield sub-characters relationship study in 134 Cowpea (Vigna unguiculata (L.) Walp) accessions. West African Journal of Applied Ecology, 20(2): 19-22.

  • FAO 2007. http://faostat.fao.org

  • Fisher, R.A. 1936. The use of multiple measurements in taxonomic problems. Annals of Eugenics., 7(2): 179-188.

  • Nene, Y. L. 1987. Overview of pulses research at ICRISAT. Adaptation of chickpea and pigeonpea to abiotic stresses. Patancheru, 502(324): 7-12.

  • Rao, P. J. M., Malathi, S., Reddy, D. V. V. and Upender, M. 2013. Genetic studies of association and path coefficient analysis of yield and its component traits in Pigeon pea (Cajanus Cajan L. Millsp.) International Journal of Scientific and Research Publications, 3(8): 1-5.

  • Singh, B.B., Mohan Raj, D.R., Dashiell, K.E. and Jackai, L.E.N. (eds.) 1997. Advances in Cowpea Research. IITA-JIRCAS, Ibadan, Nigeria.


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  • Linear Discriminant Function Analysis for the Different Characters of Pigeonpea (Cajanus cajan (L.) Millsp) Accessions

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Authors

S. T. Pavan Kumar
Department of Agricultural Statistics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741 252, India
H. H. Avinalappa
Department of Genetics and Plant Breeding, Agricultural Research Station, Gulbarga UAS, Raichur-585 101, Karnataka, India
G. B. Tuppad
Department of Agronomy, UAS, Dharwad-580 005, Karnataka, India
Adam Kamei
Department of Plant Pathology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741 252, India
K. H. Nethravathi
Department of Genetics and Plant breeding, UAS, Dharwad-580 005, Karnataka, India
P. S. Dharmaraj
Agriculture Research Station, Gulbarga, UAS, Raichur-585 101, Karnataka, India
D. Mazumdar
Agricultural Statistics, Director of Research, B.C.K.V, Kalyani-741 235, West Bengal, India

Abstract


Variations in different characters of the pigeonpea were studied using 122 accessions under rainfed condition during 2013. The characters considered viz., days to 50 per cent flowering, plant height (cm), days to physiological maturity, pods per plant, pod bearing length (cm), seeds per pod, 100 seed weight (g) and seed yield per plant (g) were used for the analysis. K-means cluster analysis was carried out based on the mean values and classified 122 accessions into four distinct clusters. The cluster-I (14 accessions), cluster- II (40 accessions), cluster-III (17 accessions) and in fourth cluster 51 accessions were distinctly classified. It is found that, days to physiological maturity, pods per plant, days to 50 per cent flowering and pod bearing length (cm) were significant discriminating characters. The stepwise discriminant analysis showed that pods per plant and days to physiological maturity were highly discriminating characters and these two characters were explained by the 98.8 percent variation in the accessions studied and these accessions were classified 97.5 percent correctly in the four clusters.

Keywords


Pigeonpea, Cajanus cajan, K-Means Clustering, Discriminant Function.

References