Vol. 12 (1&2 ) : Jan-April, 2021 Issue
Green Farming Vol. 12 (1&2 ) : 1-6; Jan.-April, 2021
Estimation of variability and genetic parameters for yield and quality traits in promising rice genotypes of Tamil Nadu
VINOD KUMAR NAIK MOODEA1*, M. ARUMUGAM PILLAIB2 and S.SARAVANANB3
aDeptt. of Genetics and Plant Breeding, S .V. Agricultural College, ANGRAU, Tirupati-517502. (A.P.) bDeptt. of Genetics and Plant Breeding, AC& RI, TNAU, Killikulam-628252. (Tamil Nadu)
Designation : 1Ph.D Scholar *(vinod.naik2014ag@gmail.com.) 2Professor. and Head (Mapillai1@hotmail.com), 3Asstt. Professor
Subject : Agriculture Botany
Paper No. :
Total Pages : 6
Received :
Revised accepted :
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ABSTRACT
Analysis of variance revealed highly significant differences among 55 genotypes for all the yield components and
quality traits indicating that enough variability is present in the studied material. The magnitude of difference between
PCV and GCV was less for the traits indicating little influence on the environment. A wide range of phenotypic coefficient of
variation (8.37 – 47.39%) and genotypic coefficient of variation (8.23 – 47.34%) was observed for 19 traits. The higher
estimates of PCV and GCV were observed for yield per plant (47.39; 47.34) and number of productive tillers (28.52;
27.92). High heritability coupled with high genetic advance was observed for a number of filled grains per panicle, single
plant yield, days to 50 % flowering, plant height, and gel consistency indicated that additive genetic control in the
inheritance of these traits and selection pressure could be profitably applied on these characters for yield and quality
traits improvement.
Key words :
Genetic advance, GCV, Heritability, PCV, Quality traits, Rice, Variance, Variability
