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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2020, Volume : 8, Issue : 6
First page : (359) Last page : (363)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8428

Genetic Variability and Correlation Studies in Yield Traits of Elite Rice (Oryza sativa L.) Genotypes

N. Lingaiah^1*, B. Satish Chandra², V. Venkanna³, K. Rukmini Devi⁴ and Y. Hari^5
1Associate Professor, Department of Genetics & Plant Breeding, Agricultural College, PJTSAU, Warangal
^2,5Scientist, Regional Agricultural Research Station, PJTSAU, Warangal
³Associate Professor, Agricultural College, PJTSAU, Aswaraopet
⁴Senior Scientist, Regional Agricultural Research Station, PJTSAU, Warangal
*Corresponding Author E-mail: nlrashi80@gmail.com
Received: 10.10.2020 | Revised: 16.11.2020 | Accepted: 23.11.2020 

 ABSTRACT

Genetic variability and correlation were studies in elite rice genotypes grown during kharif season, 2015 at Regional Agricultural Research Station, Warangal.  The values of genotypic and phenotypic coefficients of variation (GCV and PCV) were moderate for no. of grain per panicle, test weight and yield and low for days to 50% flowering, no. of effective tillers per plant and plant height. High heritability coupled with high genetic advance as percent of mean was found for no. of grains/panicle, test weight and yield indicating the preponderance of additive type of gene action for the expression of these characters and selection may be effective for improving these characters. Test weight exhibited positive and significant correlation with grain yield indicating the importance of this character for yield improvement. Selection for the characters no. of grains/panicle and test weight would be effective in improvement of yield in rice crop.

Keywords: Rice, Variability, GCV, PCV, Heritability, Genetic advance.

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

Cite this article: Lingaiah, N., Satish Chandra, B., Venkanna, V., Rukmini Devi, K., & Hari, Y. (2020). Genetic Variability and Correlation Studies in Yield Traits of Elite Rice (Oryza sativa L.) Genotypes , Ind. J. Pure App. Biosci. 8(6), 359-363. doi: http://dx.doi.org/10.18782/2582-2845.8428