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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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
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.2018.7(6): 3905-3911
DOI: https://doi.org/10.20546/ijcmas.2018.706.461


Evaluation of Genetic Diversity in American Cotton (Gossypium hirsutum L.)
A. Anjani1, V. Padma1, J. V. Ramana1* and Y. Satish2
1Department of Molecular Biology and Biotechnology, Advanced Post Graduate Centre, Lam, Guntur, India 2(Plant Breeding), Cotton Section, Regional Agricultural Research Station, Lam, Guntur, India
*Corresponding author
Abstract:

The improvement of any crop mainly depends upon the nature and magnitude of genetic variability present in the base population. The objective of this study was to assess the genetic diversity and relationship among the G. hirsutum genotypes using multivariate Mahalanobis D2 statistics. Forty G. hirsutum genotypes of diverse origin were utilized in this study. Analysis of variances for dispersion showed significant differences among the genotypes and these genotypes were grouped into 7 clusters with maximum number of genotypes in cluster I (26 genotypes) from different locations. Cluster II was the second largest with 9 genotypes. Cluster III, IV, V, VI and VII were solitary clusters with nil intra-cluster D2 values. Character, bundle strength (30.64) contributed maximum to genetic divergence followed by days to 50% flowering (20.38), number of monopodia per plant (10.64), 2.5% span length (8.97), boll weight (6.15), seed cotton yield per plant (6.03). Thus the present study identified divergent genotypes SCS 1061, CCH 14-2, TSH 0533-1, RS 2767, SCS 1207, L 1008, CCH 14-1, GJHV 510, BS 26 and BS 23 from distant clusters for their exploitation in the breeding programme.


Keywords: Indian economy, cultivars/genotypes, population, breeding programme
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How to cite this article:

Anjani, A., V. Padma, J. V. Ramana and Satish, Y 2018. Evaluation Of Genetic Diversity In American Cotton (Gossypium hirsutum L.).Int.J.Curr.Microbiol.App.Sci. 7(6): 3905-3911. doi: https://doi.org/10.20546/ijcmas.2018.706.461