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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
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(4): 263-269
DOI: https://doi.org/10.20546/ijcmas.2019.804.029


Genetic Diversity Studies on Parental and Interspecific Hybrids (Gossypium hirsutum L. × Gossypium barbadense L.) of Cotton
S. Malathi1* and Rajesh S. Patil2
1College of Agriculture, Dharwad
2Agriculture Research Station, Dharwad Farm, University of Agricultural Sciences, Dharwad, India
*Corresponding author
Abstract:

Genetic diversity analysis was conducted at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad during Kharif, 2017. In this study, 35 genotypes were evaluated for 11 yield and yield attributing traits and grouped into four clusters through Mahalanobis D2 statistic. Cluster I was the biggest with 23 genotypes followed by cluster II, III and IV. Among eleven characters studied, seed cotton yield (25.38 %) and days to 50 per cent flowering (22.86 %), contributed high for divergence while other characters like boll weight (0.34 %), number of sympodia per plant (0.5 %) and lint index (0.67 %) contributed very little for divergence. Cluster IV with solitary genotype secured 1st rank with an overall score of 20 across 13 characters and the cluster III obtained 4th rank with an overall score of 34. As high inter-cluster distance is shown by cluster III and IV, hence is desirable to select genotypes from these clusters to develop triple cross hybrids for further crop improvement programs.


Keywords: Genetic diversity, Mahalanobis D2 statistic, Cluster, and Triple cross hybrids
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How to cite this article:

Malathi, S. and Rajesh S. Patil. 2019. Genetic Diversity Studies on Parental and Interspecific Hybrids (Gossypium hirsutum L. × Gossypium barbadense L.) of Cotton.Int.J.Curr.Microbiol.App.Sci. 8(4): 263-269. doi: https://doi.org/10.20546/ijcmas.2019.804.029