Leenakumari creator Nayar, N K text Vellanikkara Kerala Agriculture University 1996 monographic 76p. English Rice varieties Ptb1 - Ptb34 Rice Variety-Annapoorna(PTB 35) Rice Varieties-Bhadra,Pavizham,Karthika,Aruna,Makom etc Rice Varieties-Rohini,Aswathy,Triveni,JyothiSabari,Bharathy,Swarnaprabha etc IR 633.187 LEE/RI