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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(9): 879-888
DOI: https://doi.org/10.20546/ijcmas.2019.809.105


Studies on Variability, Heritability and Genetic Advance in parental lines of Hybrid Rice (Oryza sativa L.)
Chinnapa Reddy Allam1,3*, T.E. Nagaraja2 and N. Shivakumar3
1Department of Genetics and Plant Breeding, UAS, GKVK, Bengaluru 560065, India
2AICRP on Pigeon pea, UAS, GKVK, Bengaluru 560065, India
3Hybrid Rice Section, ZARS, V.C. Farm, Mandya 571401, India
*Corresponding author
Abstract:

Genetic variability, genotypic and phenotypic coefficients of variation, heritability and genetic advance for twenty-one characters in twenty-eight parental lines of hybrid rice were studied. The analysis of variance revealed highly significant differences for all the characters among the genotypes. The magnitude of differences between PCV and GCV was relatively low for all the traits, indicating less environmental influence. The estimates of genotypic and phenotypic coefficients of variation (GCV and PCV) were high for spikelets per panicle, flag leaf area, days to 50 % flowering, days to maturity and grain yield per plant. Heritability and genetic advance were high for all the characters except pollen fertility which had low genetic advance along with high heritability indicating the involvement of additive and non-additive type of gene action respectively in controlling this character.


Keywords: Variability, Heritability and Genetic advance,
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How to cite this article:

Chinnapa Reddy Allam, T.E. Nagaraja and Shivakumar, N. 2019. Studies on Variability, Heritability and Genetic Advance in parental lines of Hybrid Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 8(9): 879-888. doi: https://doi.org/10.20546/ijcmas.2019.809.105