Variability and Interrelationships for Yield and Yield Related Traits in Land Races of Rice (Oryza sativa L.)

 

Mounika J¹, Krishna Veni B²*, Rani Chapara3 and Bhuvaneswari V4

1  Agricultural College, Bapatla-522101, Andhra Pradesh, India

2  Agricultural Research Station, Bapatla-ANGRAU, Andhra Pradesh, India

3  ANGRAU, Lam, Guntur-522034, India

4  ANGRAU, RARS, Maruteru-534 122, West Godavari District, India

*Corresponding author Email: b.krishnaveni@angrau.ac.in

Volume 18-(1), 2025   ;  https://doi.org/10.58297/AIGB1336   Click here for Pdf

Received: 1st January, 2025; Accepted: 28th February, 2025
 
Abstract

The present study aims to estimate the genetic parameters of seven yield-attributing traits to assess genetic variability and correlation of yield and yield-related traits in land races of rice. High heritability estimates coupled with high genetic advance were recorded for plant height, ear bearing tillers per plant, number of f illed grains per panicle and test weight indicating that direct selection of these characters would be more accurate for yield improvement. The results of correlation and path coefficient analysis revealed that the traits viz., days to 50 % flowering, number of filled grains per panicle and test weight exhibited positive association along with high positive direct effects both at genotypic and phenotypic levels. Hence direct selection for these traits will simultaneously improve both the traits.

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