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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(6): 2240-2250
DOI: https://doi.org/10.20546/ijcmas.2017.606.266


Genetic Diversity Analysis among Inbred Lines of Pearl millet [Pennisetum glaucum (L.) R. Br.] Based on Grain Yield and Yield Component Characters
A. Radhika Ramya1, M. Lal Ahamed1 and Rakesh K. Srivastava2*
1Department of Genetics and Plant Breeding, Acharya N G Ranga Agricultural University, Guntur, Andhra Pradesh, India
2International Crops Research Institute for the Semi-Arid Crops (ICRISAT), Patancheru, Hyderabad, Telangana, India
*Corresponding author
Abstract:

An experiment was conducted to assess genetic divergence among 60 inbred lines included 27 maintainer (B-) and 33 restorer (R-) lines of pearl millet based on quantitative data of grain yield and its ten component traits using hierarchical cluster and principal component analysis (PCA). The PCA identified four principal components (PCs) with Eigen value greater than 1.00 and accounted for 70.97 per cent of total variation. Most important traits in PC1 are days to 50 per cent flowering, plant height, ear length, ear diameter, grain yield per plant, fresh stover yield per plant, dry matter yield per plant and grain harvest index and captured 26.85 per cent of total variation. PC2 was represented by ear diameter and dry matter yield per plant and contributed 18.06% of total variation. Two characters, grain yield per plant and grain harvest index contributed positively on all the first four PCs. Cluster analysis grouped the inbred lines into eight clusters and the characters, plant height, 1000 grain weight, dry matter yield per plant and productive tillers per plant contributed maximum towards genetic divergence. The grouping patterns of parental lines in PCA and cluster analysis were almost in agreement with each other with minor deviations. The study noticed maximum inter cluster distance between lines of cluster I and II with cluster VII, indicating that lines included in these clusters may have high heterotic response and produce better seggregants when used in Pearl millet hybridization programme.


Keywords: Genetic divergence, Pearl millet, Maintainer (B-) lines, Restorer (R-) lines, Principal component analysis, Hierarchical cluster analysis.
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How to cite this article:

Radhika Ramya, A., M. Lal Ahamed and Rakesh K. Srivastava. 2017. Genetic Diversity Analysis among Inbred Lines of Pearl Millet [Pennisetum glaucum (L.) R. Br.] Based on Grain Yield and Yield Component CharactersInt.J.Curr.Microbiol.App.Sci. 6(6): 2240-2250. doi: https://doi.org/10.20546/ijcmas.2017.606.266