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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 8, Issue 2 (2019)

Genetic variability studies for yield and yield components in F2 generation in rice (Oryza sativa L.)

Author(s):

Anoj Kumar Singh, Suresh BG, Anil Mahto, Ankit Kumar Singh, Shivendra Pratap Singh and Shyambabu Verma

Abstract:
The present experiment was conducted at Field Experimentation Centre, Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture Technology and Sciences, Allahabad during Kharif- 2017 in Randomized Block Design (RBD) with three replications. The data were recorded for thirteen quantitative and seven quality characters to study genetic variability, heritability, genetic advance, correlation coefficient analysis and path analysis. Analysis of variance among 30 advance breeding lines in rice genotypes showed highly significant differences for all the characters indicated the presence of substantial amount of genetic variability. On the basis of mean performance highest grain yield per hill observed in genotypes SHUATS Dhan-211(ABL) (42.43 g), followed by SHUATS Dhan-224(ABL) (41.50), SHIATS DHAN-5 (40.68). High genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) was observed for flag leaf length (20.51 to 21.22), followed test weight (19.19 to 19.64), number of spikelet’s per panicle (18.38 to 18.62) and number of panicles per hill, indicating that these characters could be used as selection for crop improvement. High estimates of heritability were observed for number of spikelets per panicle, days to 50 % flowering, test weight, flag leaf length, plant height and harvest index followed by seed yield per hill, biological yield per hill and number of panicles per hill. High genetic advance were for number of spikelets per panicle, plant height. Genetic advance as percent of mean was observed for test weight, number of spikelets per panicle, number of panicles per hill and plant height.

Pages: 2058-2062  |  1128 Views  592 Downloads


Journal of Pharmacognosy and Phytochemistry Journal of Pharmacognosy and Phytochemistry
How to cite this article:
Anoj Kumar Singh, Suresh BG, Anil Mahto, Ankit Kumar Singh, Shivendra Pratap Singh and Shyambabu Verma. Genetic variability studies for yield and yield components in F2 generation in rice (Oryza sativa L.). J Pharmacogn Phytochem 2019;8(2):2058-2062.

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