National Academy of Agricultural Sciences (NAAS)
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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 |
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.
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