Vol. 7 (2) : March-April 2016 issue
Green Farming Vol. 7 (2) : 349-352 ; March-April, 2016
Genetic variability and association analysis in rice
PRAVEEN KUMAR U.1*, SURESH B.G.2, NARESH KUMAR L.3 and LAVANYA G.R.4
Dept. of Genetics & Plant Breeding, Allahabad School of Agriculture, Sam Higginbottom Institute of Agric. Techn. & Sciences (Formerly Allahabad Agricultural Instt) Deemed-to-be-Unversity, Allahabad - 211 007 (Uttar Pradesh)
Designation : 1,3P.G. Student *(praveenkumargpb@gmail.com), 2Professor, 4Asstt. Professor
Subject : Crop Genetics and Plant Breeding
Paper No. : P-4025
Total Pages : 4
Received : 28 July 2015
Revised accepted : 01 March 2016
Get Access
Citation :
PRAVEEN KUMAR U., SURESH B.G., NARESH KUMAR L. and LAVANYA G.R. 2016. Genetic variability and association analysis in rice. Green Farming Vol. 7 (2) : 349-352 ; March-April, 2016
ABSTRACT
Selected fifty diverse germplasm along with one check variety of rice (Oryza sativa L.) were evaluated during kharif 2012-13 for the estimation of variability, heritability and genetic advance as percent of mean for thirteen quantitative characters viz., days to 50% flowering , plant height, days to maturity, biological yield per plant , harvest index, test weight and grain yield per plant. Analysis of variance showed significant differences for all the characters under study. Highest genotypic and phenotypic variance was observed for number of spikelets per panicle followed by biological yield per plant. Maximum genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) was exhibited by flag leaf width followed by number of tillers per plant. High heritability was observed for flag leaf width and plant height. Higher to moderate heritability combined with genetic advance as per cent of mean was observed for flag leaf width, number of tillers per hill and harvest index.
Key words :
Genetic variability, Genetic advance, GCV, Heritability, Oryza sativa, PCV, Rice genotypes.
