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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
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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(1): 2184-2194
DOI: https://doi.org/10.20546/ijcmas.2018.701.263


Genetic Diversity in Onion by Multivariate Analysis under Short Day Condition
P.H. Ghodke*, U.M. Gijare, P.S. Andhale, V.N. Salunkhe, Mahajan, A.J. Gupta and M. Singh
(Plant Physiology) ICAR-Directorate of Onion and Garlic Research, Rajgurunagar,Pune-410505, Maharashtra, India
*Corresponding author
Abstract:

Onion (Allium cepa L.) is an economical important crop, but genetic diversity among the genotypes is poorly understood. The study was conducted in Rabi, 2016 to access the genetic diversity in 33 onion genotypes by correlation and multivariate analysis. The analysis of variance was highly significant for 15 physiological, biochemical and yield traits, which revealed the presence of genetic variability among the entries. Correlation analysis revealed a significant positive association between phenol and bulb yield whereas; flavanoids are strongly associated with antioxidant activity. Multivariate analysis grouped the genotypes into three clusters. Highest inter cluster distance was recorded between cluster II and III whereas, lowest between cluster I and III. In cluster I, all five entries perform outstandingly for parameters viz. chlorophyll, phenol, pyruvic acid, bulb size and yield (42-54 Tha-1). Out of the 16 genotypes of cluster II, about 6 entries recorded with lower yield (< 30 Tha-1) and poor performance while, remaining found better for biochemical traits. The yield performance of 12 genotypes of cluster III is in the range of 42-52 Tha-1. Thus the entries from cluster I namely, KH-M-1, KH-M-2 and W 344 may be selected as parents in future onion breeding program for developing superior onion variety.


Keywords: Onion, Correlation coefficient analysis, Multivariate analysis
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How to cite this article:

Ghodke, P.H., U.M. Gijare, P.S. Andhale, V.N. Salunkhe, V. Mahajan, A.J. Gupta and Singh, M. 2018. Genetic Diversity in Onion by Multivariate Analysis under Short Day Condition.Int.J.Curr.Microbiol.App.Sci. 7(1): 2184-2194. doi: https://doi.org/10.20546/ijcmas.2018.701.263