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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.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2016: 92.3
Index Copernicus ICI Journals Master List 2016 - IJCMAS--ICV 2016: 92.3
For more details click here
journals IJCMAS
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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 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(4): 1326-1334
DOI: https://doi.org/10.20546/ijcmas.2017.604.162


Variability Studies for Quantitative Traits in F3 Generation of Groundnut (Arachis hypogaea L.)
R. Divyadharsini, R. Prabhu*, N. Manivannan and P. Vindhiyavarman
Department of Oilseeds, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore - 641 003, Tamil Nadu, India
*Corresponding author
Abstract:

In the present investigation, estimates of genetic variability, heritability and genetic advance were assessed for nine different characters in the F3 population derived from four groundnut crosses, viz., CO 7 × VRI Gn 6, TMV 2 × VRI Gn 6, TMV Gn 13 × VRI Gn 6 and VRI 2 × VRI Gn 6. Considering the mean performance, the cross derivative TMV Gn 13 × VRI Gn 6 registered superiority for the characters viz., 100-pod weight (g), 100-kernel weight (g) and sound mature kernel (%). Apart from these characters, the cross VRI 2 × VRI Gn 6 for shelling (%) and sound mature kernel (%), and CO 7 × VRI Gn 6 for the trait late leaf spot and rust score also showed higher mean performance. High percentage of PCV, GCV, heritability coupled with high GAM values were recorded by number of pods plant-1, pod yield plant-1 (g), kernel yield plant-1 (g), late leaf spot score and rust score in varied crosses. Selection would be effective for these traits in respective crosses to obtain promising progenies. Regarding the population distribution, significant and negative skewness was observed in all the four crosses for shelling (%) and sound mature kernel (%). Leptokurtic/mesokurtic nature was noticed in most of the traits understudy. Thereby, directional selection will effectively improve the mean performance of these traits. Hence, based on mean and various genetic parameters, the cross CO 7 × VRI Gn 6 is considered as superior for late leaf spot and rust resistance in groundnut.


Keywords: Groundnut, Mean, Variability, Population distribution, Yield, Late leaf spot, Rust.
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How to cite this article:

Divyadharsini, R., R. Prabhu, N. Manivannan and Vindhiyavarman, P. 2017. Variability Studies for Quantitative Traits in F3 Generation of Groundnut (Arachis hypogaea L.).Int.J.Curr.Microbiol.App.Sci. 6(4): 1326-1334. doi: https://doi.org/10.20546/ijcmas.2017.604.162