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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 (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

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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(10): 2551-2558
DOI: https://doi.org/10.20546/ijcmas.2017.610.299


Third and Fourth Degree Statistics-Based Genetics of Quantitative Traits in Dolichos Bean (Lablab purpureus L.)
B.M. Showkath Babu1*, B.N. Jagadeesh2, S. Ramesh1, C.M. Keerthi1 and H.H. Sowmya1
1Department of Genetics and Plant Breeding, College of Agriculture, University of Agricultural Sciences (UAS), Gandhi Krishi Vignana Kendra (GKVK), Bengaluru 560-065, Karnataka, India
2Dryland Agriculture Project (DLAP), University of Agricultural Sciences (UAS), Gandhi Krishi Vignana Kendra (GKVK), Bengaluru 560-065, Karnataka, India
*Corresponding author
Abstract:

Very often, genetics of quantitative traits is unraveled using first (mean) and/or second degree statistics (variance) and their derivatives. Genetic analysis based on skewness, the third degree statistics and kurtosis, the fourth degree statistics is more powerful and useful than first and second degree statistics, especially for detecting and characterizing the nature of epistasis. An investigation was carried out to unravel and interpret genetics of fresh pod yield and its component traits using skewness and kurtosis estimated in F2and F3 populations derived from two crosses of dolichos bean, one of the important food grain legume extensively grown in India. The positively skewed platykurtic distribution of F2 and F3 populations derived from the two crosses indicated the role of large number of increasing effects genes with majority of them displaying complementary epistasis in the expression of most of the traits. The expected gain is slow with mild selection while it is rapid with intense selection for the improvement of the traits investigated. The study provided comprehensive and mutually complementary information on the mode of action of gene controlling fresh pod yield and its component traits based on third and fourth degree statistics.


Keywords: Dolichos bean, Genetics, Quantitative traits, Third and fourth degree statistics
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How to cite this article:

Showkath Babu, B.M., B.N. Jagadeesh, S. Ramesh, C.M. Keerthi and Sowmya, H.H. 2017. Third and Fourth Degree Statistics-Based Genetics of Quantitative Traits in Dolichos Bean (Lablab purpureus L.).Int.J.Curr.Microbiol.App.Sci. 6(10): 2551-2558. doi: https://doi.org/10.20546/ijcmas.2017.610.299