Assessment of Genetic Variability Parameters Among the F2 Population of a Cross Between Jaya × Isogenic Line of MTU1010 for Yield and its Component Traits in Rice


Dileep Kumar GD¹, ², Abdul Fiyaz R¹*, Viswanatha KP² , Subba Rao LV¹ , Chimote VP²Raghuwanshi KS³, Amolic VL² , Chaithanya K¹ , Shivani D4 , Bharat Kumar4 ,Rapaka Percy VS¹ , Satvik B¹ and Sundaram RM¹

ICAR-Indian Institute of Rice Research, Hyderabad 500030

Mahatama Phule Krishi Vidyapeeth, Rahuri, Maharashtra 413 722

Agricultural Research Station, Lonavala, Maharashtra 410401

Professor Jayashankar Telangana State Agricultural University, Hyderabad 500030

* Corresponding author’s Email:,

Volume 15(2), 2022   ;   Click here for Pdf

Received: 30th November 2022; Accepted: 28th December 2022



An experiment was carried out during Rabi 2021-22 at the experimental plot of ICAR-Indian Institute of Rice Research, Hyderabad. Two diverse elite indica lines of rice (Jaya and isogenic line of MTU1010) were used to generate the F2 population to study genetic variability parameters, heritability, and expected genetic advance under selection. Higher GCV, PCV, and heritability coupled with high genetic advance were estimated for the number of productive tillers, panicle weight, number of filled grains, and single plant yield, which indicated that heritability of these traits was under the control of additive gene action. Stringent selection for such traits will be rewarding.