2026-06-27http://hdl.handle.net/123456789/24427allelesbackcrossingbreeding programmesepistasisgene interactiongenesgenetic markersgeneticsgrain yieldheading dateinbred lineslociplant breedingplant developmental stagesquantitative trait lociquantitative traitsseedsselectionyield componentsyieldsImproving rice yield and quality by QTL pyramidingJournal Article