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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(10): 2369-2376
DOI: https://doi.org/10.20546/ijcmas.2017.610.279


Studies on Variability, Heritability, Correlation and Path Analysis for Yield, Yield Attributes in Rice (Oryza sativa L.)
B.Edukondalu1*, V. Ram Reddy1, T. Shobha Rani1, Ch. Aruna Kumari1 and B. Soundharya2
1Department of Genetics and Plant Breeding, College of Agriculture (PJTSAU),Jagtial -505 529, Telangana, India
2Department of Genetics and Plant Breeding, College of Agriculture (PJTSAU),
Rajendranagar, Hyderabad, 500-030, Telangana, India
*Corresponding author
Abstract:

An investigation was carried out to study the heritability, correlation and path analysis for 15 characters in 40 genotypes of rice during Kharif, 2016. Analysis of variance revealed that mean sum of squares due to genotypes showed significant differences for all 15 characters studied. Analysis of variability parameters revealed that the phenotypic coefficient variation were higher than genotypic coefficient variation. The magnitude of PCV and GCV was high for number of grains per panicle. High heritability coupled with high genetic advance as per cent of mean was observed for number of grains per panicle, number of tillers per plant, 1000-grain weight, L/B ratio, plant height, kernel length, grain yield per plant, kernel breadth and days to flowering. In general, magnitudes of genotypic correlation were found to be higher than phenotypic correlations. The results indicated that grain yield per plant showed significant positive association with number of tillers per plant, panicle length and milling percentage. Path coefficient analysis revealed that number of tillers per plant exerted the highest positive direct effect on grain yield per plant followed by kernel breadth, L/B ratio, panicle length, milling percentage, days to flowering and head rice recovery percentage.


Keywords: Genetic variability, Heritability, Correlation, Path analysis, Rice.
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How to cite this article:

Edukondalu, B., V. Ram Reddy, T. Shobha Rani, Ch. Aruna Kumari and Soundharya, B. 2017. Studies on Variability, Heritability, Correlation and Path Analysis for Yield, Yield Attributes in Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 6(10): 2369-2376. doi: https://doi.org/10.20546/ijcmas.2017.610.279