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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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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(7): 577-586
DOI: https://doi.org/10.20546/ijcmas.2017.607.070


Determination of maturity and Genetic Diversity in Mandarin (Citrus reticulata Blanco) Genotypes Based on Citrus Colour Index
Gurteg Singh1*, Phupinder Singh Aulakh2 and Harinder Singh Rattanpal1a
1Department of Fruit Science, Punjab Agricultural University, Ludhiana-141 004, Punjab, India
2 Department of Horticulture, Punjab, India
*Corresponding author
Abstract:

The genetic diversity among nineteen mandarin genotypes was assessed at Punjab Agricultural University Ludhiana based on fruit chromicity scores. Colour parameters of fruit epicarp, pulp and juice were determined with the help of Hunter Lab colorimetric system as per IPGRI descriptors. The mean value of epicarp CCI was significantly higher (11.91) in W. Murcott followed by Fremont (9.32) and Kinnow (8.54). However, the mean value of pulp CCI of different mandarin genotypes ranged from 4.28 to 11.30 with average value of 6.66. The pulp CCI was maximum (11.30) in Daisy which was statistically at par with Darjeeling (10.51). The data revealed that mean value of juice CCI was maximum (9.78) in Daisy which was statistically at par with W. Murcott (9.68), CRS-4 (9.14), Clone-11(9.03) and Kinnow (8.86). The clustering analysis showed that genotypes were grouped across the sub-groups based on their quantitative colorimetric values without clear evidence of their geographical distribution. The study concluded that W. Murcott, Fremont, Kinnow and Daisy are distinct genotypes having higher chromicity scores. Thus, this study will help citrus breeder to select distinct mandarin genotypes for targeting better fruit colour parameters in citrus improvement programme.


Keywords: Citrus colour index, Chromicity, Diversity, Epicarp, Genotype.
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How to cite this article:

Gurteg Singh, Phupinder Singh Aulakh and Harinder Singh Rattanpal. 2017. Determination of Maturity and Genetic Diversity in Mandarin (Citrus reticulata Blanco) Genotypes Based on Citrus Colour Index.Int.J.Curr.Microbiol.App.Sci. 6(7): 577-586. doi: https://doi.org/10.20546/ijcmas.2017.607.070