International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:6, June, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 2029-2042

Estimation of Genetic Variability Parameters in Soft Rice (Oryza sativa L.) Genotypes
Pragnya1*, K. V. Radha Krishna1, L. V. Subba Rao2 and K. Suneetha2
1Department of Genetics and Plant Breeding, College of Agriculture, PJTSAU,
Hyderabad-30, Telangana, India
2Directorate of Rice Research, Rajendranagar, Hyderabad-30, Telangana, India
*Corresponding author

In the present investigation, seventy five speciality rices called soft rice genotypes collected from different parts of North-East India (especially Assam) were evaluated to estimate the genetic parameters in the experimental material for selection of the diverse parents among the genotypes for yield and component traits. The experiment was laid out in a randomized block design with three replications at Directorate of Rice Research Farm, ICRISAT Campus, Patancheru, Hyderabad, India. Analysis of variance indicated the existence of significant genotypic differences among the genotypes for the yield and its components traits for all the characters. High GCV and PCV values were observed for seed yield per plant, number of tillers per plant and number of productive tillers per plant, moderate GCV and PCV for plant height, panicle length, per cent filled grains per panicle and test weight. The values were low for days to 50% flowering and days to maturity. High heritability coupled with high genetic advance as percent of mean was observed for plant height, number of tillers per plant, number of productive tillers per plant, per cent filled grains per panicle, seed yield per plant and test weight, which indicated that these traits were controlled by additive type of gene action, indicating that these characters are more reliable for effective selection.

Keywords: Genetic variability, PCV, GCV and soft rice

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How to cite this article:

Pragnya K., K. V. Radha Krishna, L. V. Subba Rao and Suneetha K. 2018. Estimation of Genetic Variability Parameters in Soft Rice (Oryza sativa L.) Genotypes.Int.J.Curr.Microbiol.App.Sci. 7(6): 2029-2042. doi:
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