The Journal of Phytopharmacology, 2020;9(6):453-458 DOI:10.31254/phyto.2020.9613

Research Article

Genetic variability studies in F1 rice (Oryza sativa L.) hybrids for yield and quality traits

M.Vinod Kumar Naik¹ , M. Arumugam Pillai² , S. Saravanan³

M.Vinod Kumar Naik,M. Arumugam Pillai,S. Saravanan

1. Department of Genetics and Plant Breeding, S.V. Agricultural College, Acharya NG Ranga Agricultural University (ANGRAU), Tirupati517502, Andhra Pradesh, India
2. Professor and Head, (Breeding), Department of Genetics and Plant Breeding, AC & RI, Tamil Nadu Agricultural University (TNAU), Killikulam-628252, Tamil Nadu, India
3. Assistant Professor, (Breeding), Department of Genetics and Plant Breeding, AC & RI, Tamil Nadu Agricultural University (TNAU), Killikulam-628252, Tamil Nadu, India

*Author to whom correspondence should be addressed.

Received: 21st November, 2020 / Accepted: 23rd December, 2020

Abstract

Analysis of variance among lines, significant differences was observed for plant height, number of productive tillers per plant, panicle length, number of filled grains per panicle, single plant yield and 1000 grain weight while days to 50 per cent flowering, plant height, panicle length, single plant yield, 1000 grain weight, milling per cent, head rice recovery, grain length, L/B ratio, kernel length after cooking, kernel breadth after cooking, breadth wise elongation ratio and amylose content exhibited significant differences among testers besides in L x T interaction, all characters along with yield. The magnitude of difference between genotypic coefficient of variation (GCV) and phenotypic coefficient of variation was less for the traits indicating slight influence of environment. A wide range of PCV (4.09 – 43.43 %) and GCV (6.58 – 43.39 %) was resulted for 19 traits. The presence of higher GCV and PCV observed in number of filled grains per panicle followed by single plant yield, Alkali spreading value, gel consistency and amylose content, which signifies the additive genetic control in inheritance of that trait. The presence of high scale of GCV and PCV for observed traits suggested having better possibility for the enhancement through simple selection procedure.