International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 6
First page : (1364) Last page : (1371)
Article doi: http://dx.doi.org/10.18782/2320-7051.5395
Genetic Variability, Heritability and Genetic Advance in Rice (Oryza sativa L.)
P. L. Limbani1*, M. K. Gangani2 and M. M. Pandya3
1M. Sc. Student, Department of Genetics and Plant Breeding, N. M. College of Agriculture,
Navsari Agricultural University, Navsari – 396 450, Gujarat
2Associate Research Scientist, Regional Cotton Research Station, Achhalia, N.A.U., Navsari
3Assistant Research Scientist, Hill Millet Research Station,
A.A.U., Muvaliya Farm, Dahod-389 151
*Corresponding Author E-mail: limbanipradip007@gmail.com
Received: 6.08.2017 | Revised: 22.09.2017 | Accepted: 27.09.2017
ABSTRACT
A field experiment comprised of 72 genotypes of upland rice (Oryza sativa L.) was to investigate the magnitude of genetic variability, character association and genetic divergence in upland rice. The higher estimates of genotypic and phenotypic coefficient of variation were obtained for number of non-effective tillers per plot, number of unfilled grains per panicle, harvest index, grain yield per plot and number of effective tillers per plot which also had high heritability coupled with high genetic advance indicating better scope for improvement of these traits by an effective selection program. Grain yield per plot showed positive and highly significant association with harvest index, number of effective tillers per plot, milling percentage, number of filled grains per panicle and plant height while highly significant but negative correlation with number of non-effective tillers per plot and days to 50% flowering at genotypic as well as phenotypic levels. Hence, it can be advocated to give priority to these traits in the selection programme to develop high yielding and early varieties with bold grains.
Key words: Rice, Genetic, variability, Heritability, Genetic advance.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Limbani, P.L., Gangani, M.K. and Pandya, M.M., Genetic Variability, Heritability and Genetic Advance in Rice (Oryza sativa L.), Int. J. Pure App. Biosci.5(6): 1364-1371 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5395
