The present investigation for genetic variability was made based on the data recorded for sixteen yield and yield contributing quantitative and qualitative characters in twenty one rice genotypes using statistical are significant differences among the genotypes for all the characters under study showed by analysis of variance. Among the characters, higher estimates of phenotypic coefficient of variance (PCV) and genotypic coefficient of variance (GCV) were observed for the traits number of spikelet per panicle, no of filled grains per panicle, grain weight per panicle(g) and grain yield/ha (kg). | Genetic parameters study for yield and yield contributing characters in rice (Oryza sativa L.) genotypes with high grain zinc content (2020) 9(3): 357-364 International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 3 (2020) Journal homepage: Original Research Article Genetic Parameters Study for Yield and Yield Contributing Characters in Rice (Oryza sativa L.) Genotypes with High Grain Zinc Content Partha Pratim Behera1*, S. K. Singh1, D. K. Singh1 and Khonang Longkho2 1 Department of Genetics and Plant Breeding, Banaras Hindu University, Varanasi- 221 005, India 2 Department of Genetics and Plant Breeding, Visva Bharat, West Bengal, India *Corresponding author ABSTRACT The present investigation for genetic variability was made based on the data recorded for sixteen yield and yield contributing quantitative and qualitative characters in twenty one rice genotypes using statistical are significant differences among the genotypes for all the characters under study showed by analysis of variance. Among the characters, higher estimates of phenotypic coefficient of variance (PCV) Keywords and genotypic coefficient of variance (GCV) were observed for the traits Genetic variability, number of spikelet per panicle, no of filled grains per panicle, grain weight GCV, PCV, per panicle(g) and grain yield/ha (kg). This indicates the existence of wide Heritability, Genetic advance, genetic base among the genotypes taken for study and higher possibility of Analysis of genetic improvement through selection for these traits. Heritability was variance higher for all the characters except tillers per plant, spikelet fertility per Article Info cent and panicle length (cm). Thus, selection based on phenotypic values would be effective for these traits. High heritability
