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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
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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.2018.7(8): 199-215
DOI: https://doi.org/10.20546/ijcmas.2018.708.027


Genetic Divergence Studies in Paprika (Capsicum annuum L.)
T. Lakshmi Tirupathamma1, L. Naram Naidu2, C. Venkata Ramana2 and K. Sasikala3
1Department of Vegetable Science, 3Department of agronomy, College of Horticulture, Dr. Y.S.R. Horticultural University, V.R. Gudem-534 101, India
2Horticulture Research Station, Dr. Y.S.R. Horticultural University, Lam Farm, Guntur-522 034, India
*Corresponding author
Abstract:

Genetic divergence among forty four genotypes of paprika was assessed using Mahalanobis D2 statistic for twenty characters at Horticultural Research Station, Lam, Guntur, Andhra Pradesh. The analysis of variance revealed significant differences among the genotypes for all the characters studied indicating considerable diversity in the material. Based on Mahalanobis D2 statistic, the forty four genotypes were grouped into 6 clusters. The maximum contribution towards genetic divergence was by total extractable colour (21.56%) followed by red carotenoids (19.87%), yellow carotenoids (13.95%), ascorbic acid (7.29%). Among the clusters, clusters III was the largest containing 17 genotypes followed by cluster II (15) and cluster I (9), whereas the clusters IV, V and VI were solitary clusters. The highest inter cluster distance was observed between cluster V and VI (1675.44), whereas the lowest was observed between cluster I and II (217.58). Cluster III (275.34) has exhibited highest intra cluster distance and the lowest was observed in clusters IV, V and VI (0.00), respectively. Cluster analysis by Tocher’s method revealed wide genetic distance (inter cluster) between the genotypes of cluster V (Byadagikaddi) and the cluster VI (Warangal chapatta double patti) and the crossing between genotypes of these two clusters can be exploited for the development of heterotic hybrids in future breeding programmes.


Keywords: Capsicum annuum L., Paprika, Mahalanobis D2 statistic, Tocher’s method of clustering, Genetic divergence
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How to cite this article:

Lakshmi Tirupathamma, T., L. Naram Naidu, C. Venkata Ramana and Sasikala, K. 2018. Genetic Divergence Studies in Paprika (Capsicum annuum L.).Int.J.Curr.Microbiol.App.Sci. 7(8): 199-215. doi: https://doi.org/10.20546/ijcmas.2018.708.027