Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

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.2017.6(5): 1811-1819
DOI: https://doi.org/10.20546/ijcmas.2017.605.197


Assessment of Genetic Divergence in Tomato (Solanum lycopersicum L.) through Clustering and Principal Component Analysis under Mid Hills Conditions of Himachal Pradesh
Nitish Kumar1*, M.L. Bhardwaj1, Ankita Sharma1 and Nimit Kumar2
1Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan-173 230 (H.P.), India
2Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176062, India
*Corresponding author
Abstract:

The nature and magnitude of genetic divergence was estimated in 35 genotypes of tomato using Mahalanobis D2 – statistics. The genetic material revealed considerable amount of diversity for all the characters investigated. All the genotypes were grouped into 4 clusters. Maximum number of genotypes was accommodated in cluster III. The intra cluster distance was maximum in cluster III (3.103) and minimum in cluster IV (2.435). The inter cluster distance was found maximum to the tune of 4.790 between cluster I and IV and minimum (2.765) between cluster II and IV, indicating that hybridization between the genotypes from cluster I and IV can be utilized for getting superior recombinants/transgressive segregants in segregating generations of tomato. Principal component (PC) analysis depicted first four PCs with Eigen-value higher than 1 contributing 72.97% of total variability for different traits. The PC-I showed positive factor loadings for for most of the traits except fruit shape index, number of locules per fruit, pericarp thickness and harvest duration.


Keywords: Solanum lycopersicum L., Genetic divergence, Mahalanobis D2, Cluster analysis.
Download this article as Download

How to cite this article:

Nitish Kumar, M.L. Bhardwaj, Ankita Sharma and Nimit Kumar. 2017. Assessment of Genetic Divergence in Tomato (Solanum lycopersicum L.) through Clustering and Principal Component Analysis under Mid Hills Conditions of Himachal PradeshInt.J.Curr.Microbiol.App.Sci. 6(5): 1811-1819. doi: https://doi.org/10.20546/ijcmas.2017.605.197