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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 2015: 85.95
Index Copernicus ICI Journals Master List 2015 - IJCMAS--ICV 2015: 85.95
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 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(4): 948-954
DOI: https://doi.org/10.20546/ijcmas.2017.604.119


Genetic Divergence of Newly Developed Thirty Eight Maintainer Lines of Rice (Oryza sativa L.) for Yield and Grain Quality Characters
Ashok Kumar Meena*, J. Suresh1, Vijay Pancholee1, M. Mahanthesha1 and H.P. Meena2
1Acharya N.G. Ranga Agricultural University, Rajendranagar, Hyderabad-500030, India
2Scientist (Plant Breeding), ICAR-Indian Institute of Oilseeds Research, Rajendranagar,  Hyderabad-500030, India
*Corresponding author
Abstract:

Genetic divergence of thirty eight maintainer lines was studied through Mohalanobis’s D2and principal component analysis for eleven characters in a randomized complete block design (RCBD) in Kharif 2014 at Rice section farm, Agriculture Research Institute, Rajendranagar, Hyderabad. Genotypes were grouped into five different clusters. Cluster IV comprised maximum number of genotypes (thirteen) followed by cluster V and III. The inter-cluster distance was maximum between clusters I and V (35.700) indicating wide genetic diversity between these two clusters followed by the distance between cluster I and IV (30.090), cluster I and cluster III (26.530) and cluster II and cluster V (22.800). The minimum inter-cluster distance was observed between cluster III and cluster IV (3.600) followed by cluster IV and cluster V (5.920) and cluster V and cluster III (9.450) indicating that the genotypes of these clusters were genetically close. The intra cluster distance in the entire five clusters was more or less low indicated the genotypes within the same cluster were closely related. Among the characters number of panicles/m2, number of grains per panicle, number of effective tillers and grain yield per plot contributed most for divergence in the studied genotypes. Therefore, these characters may be given importance during hybridization programme.


Keywords: Rice, Genetic divercity, Mohalanobis’s D2,Cluster.
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How to cite this article:

Ashok Kumar Meena, J. Suresh, Vijay Pancholee, M. Mahanthesha and H.P. Meena. 2017. Genetic Divergence of Newly Developed Thirty Eight Maintainer Lines of Rice (Oryza sativa L.) for Yield and Grain Quality CharactersInt.J.Curr.Microbiol.App.Sci. 6(4): 948-954. doi: https://doi.org/10.20546/ijcmas.2017.604.119