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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(9): 1180-1189
DOI: https://doi.org/10.20546/ijcmas.2020.909.146


Identification of Promising Castor Hybrid Combinations by Principal Component Analysis
Yamanura* and R. Mohan Kumar
All India Co-ordinated Research Project on Castor, Zonal Agricultural research Station, University of Agricultural Sciences, GKVK, Bengaluru – 560 065, India
*Corresponding author
Abstract:

In order to find out the selection criteria thirty three genotypes were evaluated during kharif 2019-20 which includes 20 hybrids, 12 parents and a check (ICH-66). Data was subjected to principal component analysis (PCA) to reduce the number of variables in the original data set to a more significant set of variables, while maintaining maximum information. In the present investigation PCA was performed for 12 quantitative traits which yielded five PCs among them only four PCs exhibited more than 1.0 eigen values and showed about 84.34% variability. The PC 1 explained total variation 33.88% followed by PC 2 with 27.53%, PC 3 with 13.12% and PC 4 with 9.81%.The whole thirty three genotypes divided into eight main clusters. Cluster I consist of 19 genotype which was found to be a largest  cluster had sub clusters from A to O followed by Cluster II had seven genotypes which divided into five sub clusters. Whereas, cluster III, IV, VI, VII and VIII consists of one genotype in each clusters and they had solitary entries Viz. DCS-120, DCS-102, ICH-66, DCS-108 and DCS-89 respectively. Cluster V also grouped as solitary but had ICH-1090 and ICH-326 genotypes. Based on values of inter cluster distance, it was found that the highest divergence occurred between cluster II and V (156.96) followed by cluster V and VIII (138.08),cluster I and VIII (110.42) indicating the wider genetic diversity between genotypes of these groups.


Keywords: Castor, Cluster distance, Genetic diversity, PCA analysis, Variability
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How to cite this article:

Yamanura and Mohan Kumar, R. 2020. Identification of Promising Castor Hybrid Combinations by Principal Component Analysis.Int.J.Curr.Microbiol.App.Sci. 9(9): 1180-1189. doi: https://doi.org/10.20546/ijcmas.2020.909.146