Ramanadane, T.Ponnuswamy, A.S.2012-12-062012-12-062006Agrieast5(1)pp.11-26https://dl.nsf.gov.lk/handle/1/9536AgricultureHybrid riceSeed upgradationSeed densityStandardization of seed upgradation techniques in hybrid rice (Oryza sativa L.)Article