National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Combining ability analysis and heterosis study was made in forty-two rice hybrids developed by crossing fourteen lines with three testers and resultant evaluation with six checks of different duration groups. The sca variance was greater than gca variance for all the traits under study indicating the presence of non-additive gene action. Among parents, lines 1927, 1877 and tester COMS 24A were discovered as the best general combiners for single plant yield. Eight hybrid combinations viz., COMS 23A × 1933/1, COMS 24A × 1912/2, COMS 24A× 1927, COMS 24A × 1969/1, COMS 24A × 2007, COMS 24A × 1877, COMS 25A × 1967 and COMS 25A × 1726 had significant mean, positive sca effects and standard heterosis over their respective checks. All the hybrids had good flowering synchrony between respective parents and may be employed in the upcoming hybrid rice breeding programmes for test verification and exploitation.
Citations |
 |
 |
 |
 |
