Vol. 8, Issue 6 (2020)
Study of genetic variability using correlation and heritability in F2 populations of rice
Author(s): Srishti Singh, DR. DK Mishra and Sadhna Saha
Abstract: Rice (Oryza sativa L.) is one of the most consumed cereal grain in the world constituting the dietary staple food for more than half of the human population. More than 90% of the world’s rice is grown and consumed in Asia. The investigation was carried out with 200 lines of F2 segregating generation of Rice in RCBD design with three replications in kharif 2016. The analysis of variation revealed significant differences in the genotypes for all the characters studied. High heritability was observed in panicle weight/plant followed by thousand grain weight, spikelet density, days to flowering, days to maturity. flag leaf width and thousand grain weight showed maximum genetic advance as percentage of mean followed by stem thickness, flag leaf length, gain yield/plant, spikelet density, number of productive panicles/plant, number of tillers/plant, number of productive tillers/plant, panicle weight/plant, fertile spikelets/plant, stem length, number of spikelets/plants, biological yield. Correlation studies revealed positive and significant association of grain yield/plant with panicle weight/plant followed by panicle index, biological yield/plant, number of tillers/plant, number of productive tillers/plant, number of panicles/plant, harvest index, fertile spikelets/panicle, panicle length, grain breadth, spikelet fertility, flag leaf width, stem length, amylose content. While, it showed negative and significant with days to 50% flowering, thousand grain weight and decorticated grain breadth.
DOI: 10.22271/chemi.2020.v8.i6z.11035
Pages: 1829-1831 | 483 Views 82 Downloads
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How to cite this article:
Srishti Singh, DR. DK Mishra, Sadhna Saha. Study of genetic variability using correlation and heritability in F2 populations of rice. Int J Chem Stud 2020;8(6):1829-1831. DOI: 10.22271/chemi.2020.v8.i6z.11035
