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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 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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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.2019.8(6): 32-38
DOI: https://doi.org/10.20546/ijcmas.2019.806.005


Genetic Diversity Studies in Yield and its Contributing Traits in Groundnut (Arachis hypogaea L.) Genotypes using D2 Statistics
Shruti Koraddi*1, V. Satyanarayana Rao2, M. Girija Rani3, B. Sreekanth4,V. Manoj Kumar5 and Nafeez Umar6
1Department of GPBR
4Department of Crop Physiology
5Plant Pathology
6Department of Statistics and Mathematics, Agricultural College, Bapatla, ANGRAU, A.P., India
2ADR, Lam, Guntur, ANGRAU, A.P., India
3RARS, Maruteru, A.P., India
*Corresponding author
Abstract:

An experimental trial consisting of 40 groundnut genotypes, study was conducted during kharif, 2017 at Agricultural College Farm, Bapatla, to study the genetic divergence in different characters with yield and yield related traits. The genetic diversity among 40 genotypes for 15 characters was estimated by employing D² statistic. The 40 groundnut genotypes were grouped under seven clusters. Among seven clusters, cluster I was the largest which comprising of 26 genotypes fallowed by clusters II with nine genotypes. The rest of clusters like III, IV, V, VI and VII had shown solitary in nature. The average D2 values of inter cluster distances, showed maximum distance between Cluster-IV and VI (819.41) followed by inter cluster distance (732.17) between IV and VII. It indicates that crossing between these clusters helps in production of transgressive segregates or better recombinants. Each character had their own contribution to total divergence where, the Oil content and protein content had maximum contribution of 38.59% and 30.39% respectively to the divergence of genotypes.


Keywords: D2 statistics, Groundnut, Cluster, Yield, Cluster distance and Percent of contribution
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How to cite this article:

Shruti Koraddi, V. Satyanarayana Rao, M. Girija Rani, B. Sreekanth, V. Manoj Kumar and Nafeez Umar. 2019. Genetic Diversity Studies in Yield and its Contributing Traits in Groundnut (Arachis hypogaea L.) Genotypes using D2 Statistics.Int.J.Curr.Microbiol.App.Sci. 8(6): 32-38. doi: https://doi.org/10.20546/ijcmas.2019.806.005