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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - 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
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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.2020.9(2): 2906-2913
DOI: https://doi.org/10.20546/ijcmas.2020.902.330


Genetic Diversity among Tomato (Solanum lycopersicum L.) Genotypes
B. Srinivasulu1*, Pradeep Kumar Singh1, G. Harika2 and C. Sai Prashanth
1Division of Vegetable Science, Sher-e-Kashmir University of Agricultural Sciences and         Technology, Shalimar, Srinagar-19000, India
2College of Horticulture, Venkataramannagudem, West Godavari, A.P, India
*Corresponding author
Abstract:

A field experiment was laid out in a Randomized Complete Block Design with 27 genotypes of tomato in three replications. The present investigation is to find out the genetic diversity among tomato genotypes for fruit yield and its attributing characters. Mahalanobis distance (D2) was used to estimate the genetic distance between pair of clusters. Estimates of cluster analysis revealed that the twenty seven genotypes were grouped into eight distinct clusters. Genetic distance between any pair of clusters showed highly significant difference. Cluster I had maximum number of genotypes (9) followed by cluster II (8), cluster III (4), cluster V (2), while as clusters IV, VI, VII, VIII were having only one genotype in each cluster. Maximum inter-cluster distances was observed in cluster IV and cluster VI (7021.27), cluster II and VI (5628.93) whereas the maximum intra-cluster distance was observed in cluster III (770.46) and cluster I (721.11). Highest contribution to divergence observed in lycopene content (mg/100g), fruit yield (q/ha) and ascorbic acid content (mg/100g) and days to red ripen fruit stage. The crosses between the genotypes of cluster VI with IV and Cluster VI with II are likely to exhibit high heterosis and could produce recombinants with desired traits in segregating generations.


Keywords: Genetic Diversity, Cluster analysis, Mahalonobis D2, Solanum lycopersicum L.
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How to cite this article:

Srinivasulu. B, Pradeep Kumar Singh, G. Harika and Sai Prashanth. C. 2020. Genetic Diversity among Tomato (Solanum Lycopersicum L.) Genotypes.Int.J.Curr.Microbiol.App.Sci. 9(2): 2906-2913. doi: https://doi.org/10.20546/ijcmas.2020.902.330