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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(8): 737-747
DOI: https://doi.org/10.20546/ijcmas.2017.608.094


Revealing Genetic Variability and Trait Association Studies in Landraces of Rice (Oryza sativa L.) Under Controlled and Drought Conditions
H.R. Uday Kumar1*, S. Gangaprasad2, P. Raghavendra2 and B.M. Dushyantha Kumar2
1Departmentof Genetics and Plant Breeding, University of Agricultural Sciences (UAS), Bengaluru, Karnataka, India
2Departmentof Genetics and Plant Breeding, University of Agricultural and Horticultural Sciences (UAHS), Shimoga, Karnataka, India
*Corresponding author
Abstract:

Sixty four landraces were evaluated for 10 yield and its component traits. Analysis of variance showed significant difference among the genotypes to all the characters under both control and low-moisture stress condition. Environmental influence was meagre on expression of characters as evidenced by narrow gap between GCV and PCV for most of the characters. The grain yield had positive and significant association with days to 50 per cent flowering and days to maturity under control condition, while test weight, number of tiller per plant, number of productive tiller per plant, number of spikelet per panicle and per cent spikelet fertility both under control and low-moisture stress conditions at phenotypic level as well as genotypic level. Hence, indirect selection for grain yield could be effectively done through direct selection of yield component characters as indicated above.


Keywords: Correlation, Direct effects, Genetic variability, Heritability, Indirect effects.
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How to cite this article:

Uday Kumar, H.R., S. Gangaprasad, P. Raghavendra and Dushyantha Kumar, B.M. 2017. Revealing Genetic Variability and Trait Association Studies in Landraces of Rice (Oryza sativa L.) Under Controlled and Drought Conditions.Int.J.Curr.Microbiol.App.Sci. 6(8): 737-747. doi: https://doi.org/10.20546/ijcmas.2017.608.094