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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 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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(9): 1420-1428
DOI: https://doi.org/10.20546/ijcmas.2017.609.172


Variability, Correlation and Path Analysis Studies in F3 Generation of Cowpea [Vigna unguiculata (L.) Walp]
H.B. Dinesh*, K.P. Viswanatha, H.C. Lohithaswa, R. Pavan and Poonam Singh
Department of Genetics and Plant Breeding, University of Agricultural Sciences, GKVK, Bangalore 560 065, Karnataka, India
*Corresponding author
Abstract:

Cowpea [Vigna unguiculata (L.) Walp] is most important widely adapted, stress tolerant grain legume, vegetable and fodder crop in tropical and sub-tropical regions. Two diverse parents were crossed (C-152 × V-16) and advanced to F3 generation. The magnitude of variation, heritability, genetic advance, correlation and path co efficient analysis were estimated in a set of 194 F3 progenies. Grain yield is complex and is determined by several component traits. The traits having high heritability and significant positive correlation with the grain yield can be utilized for indirect selection for genetic improvement. A moderate phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) estimates were recorded for plant height (15.75% and 12.91%) and number pods per plant (16.29% and 11.42%). High heritability coupled with high genetic advance as per cent of mean (GAM) was observed for plant height (67.13% and 21.78%) and moderate heritability and GAM was observed for number pods per plant (49.14% and 16.49 %). Path coefficient analysis revealed that seed yield was primarily influenced by number pods per plant, number seeds per pod and 100 seed weight which had maximum direct effect on seed yield per plant. Information obtained in this study suggests that traits like plant height, number pods per plant, number seeds per pod and 100 seed weight could be used as selection criteria for grain yield improvement at segregating populations of cowpea.


Keywords: Cowpea, PCV, GCV, Heritability, Genetic advance.
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How to cite this article:

Dinesh, H.B., K.P. Viswanatha, H.C. Lohithaswa, R. Pavan and Poonam Singh. 2017. Variability, Correlation and Path Analysis Studies in F3 Generation of Cowpea [Vigna unguiculata (L.) Walp].Int.J.Curr.Microbiol.App.Sci. 6(9): 1420-1428. doi: https://doi.org/10.20546/ijcmas.2017.609.172