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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
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
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(7): 1952-1959
DOI: https://doi.org/10.20546/ijcmas.2019.807.232


Genetic Diversity Analysis of Rice Genotypes for Yield and Yield Attributing Traits under Saline Stress Condition
R. Madhuri1*, B.M. Dushyanthakumar1, S.L. Krishnamurthy2, G.T. Navya1, S. Gangaprasad1, B.I. Halingali3 and B.C. Dhannajaya3
1Department of Genetics and Plant Breeding, College of Agricultural, Navile, University of Agricultural and Horticultural Sciences, Shivamogga, India
2Division of Crop improvement, ICAR- ICAR- Central Soil Salinity Research Institute, Karnal, Haryana, India
3College of Agricultural, Navile, University of Agricultural and Horticultural Sciences, Shivamogga, India
*Corresponding author
Abstract:

The present investigation to assess genetic diversity among 100 rice genotypes including five checks was conducted at Thyavanagi Village of Davanagere, Karnataka during Kharif 2016. Mahalanobis’ D2 statistics is used to quantify the degree of divergence. It is based on second degree statistics and pattern obtained by D2 does not change with number of characters. Mean values of 100 rice genotypes for ten characters were used to assess genetic distance between pair of genotypes. Genotypes were grouped into eleven clusters distribution patterns. Cluster pattern indicated that cluster I consists of maximum of 33 genotypes followed by cluster III (18 genotypes), cluster V (12 genotypes), cluster IV (11 genotypes), cluster II (10 genotypes). Whereas, clusters VIII, IX and XI were clustered as unitary clusters with single genotypes. Maximum intra cluster distance was observed in cluster VII (1055.02) followed by cluster IV (715.11) and cluster VI indicated that the genotypes grouped under these clusters were more diverse. Highest contribution towards divergence was observed by plant height (58.94 %) followed by spikelet fertility (17.25 %).


Keywords: Rice (Oryza sativa L.), Genetic Diversity, Genotypes
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How to cite this article:

Madhuri, R., B.M. Dushyanthakumar, S.L. Krishnamurthy, G.T. Navya, S. Gangaprasad, B.I. Halingali and Dhannajaya, B.C. 2019. Genetic Diversity Analysis of Rice Genotypes for Yield and Yield Attributing Traits under Saline Stress Condition.Int.J.Curr.Microbiol.App.Sci. 8(7): 1952-1959. doi: https://doi.org/10.20546/ijcmas.2019.807.232