na INLIS000000000000656 20241016101640 0010-0124000342 HYBRID rice breeding manual / S.S. Virmani Los banos, Philippines : International Rice Research Institute, 1997 151 p. : ills. ; 23 cm. 971-22-0103-1 633.18 HYB RICE, HIBRIDA ORYZA SATIVA BREEDING METHODS HYBRIDS IRRI. 241016 0 B.C.Virakhtamat, C.L.Casal, R.S.Toledo, M.T. Lopez, J.O.Manalo BBPSI PADI 010/2000