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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (1606) Last page : (1610)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6004

Genetic Variability for Yield, Its Contributing Characters in Rice  (Oryza sativa L.)

K. Supriya¹*, S. Vanisri², R. Jagadeeswar³ and M. Sreedhar^4
1Department of Genetics and Plant Breeding, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana
²Institute of biotechnology (IBT), College of Agriculture, Rajendranagar, Hyderabad, Telangana
³Agricultural Research Institute (ARI), Rajendranagar, Hyderabad, Telangana
⁴Quality Control Lab (QCL), Rajendranagar, Hyderabad, Telangana
*Corresponding Author E-mail: supriya.kamera@gmail.com
Received: 17.11.2017  |  Revised: 28.12.2017   |  Accepted: 5.01.2018  

 ABSTRACT

Forty eight rice (Oryza sativa L.) genotypes were evaluated during kharif 2015 to estimate the genetic variability, heritability, correlation coefficients and path coefficient for 11 yield traits. The experiment was conducted in an alpha lattice design with 2 replications. Among the traits, high GCV and PCV values were observed for plant height, number of productive tillers per plant, grain yield per plant. High heritability coupled with high genetic advance as per cent of mean was observed for days to 50 per cent flowering, plant height, number of filled grains per panicle, kernel breadth, L/B ratio. This indicated that these traits were controlled by additive gene action. The remaining traits were mostly under the influence of non-additive gene effects as they recorded low to moderate estimates of genetic advance.

Key words: Genetic variability, Heritability, Genetic advance

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Supriya, K., Vanisri, S., Jagadeeswar, R., Sreedhar, M., Genetic Variability for Yield, Its Contributing Characters in Rice (Oryza sativa L.), Int. J. Pure App. Biosci.6(2): 1606-1610 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6004