00472nam a2200133 4500 J:4 N66 SR 12 A SREEDHARAN STUDIES ON Helminthosporium oryzae BREDA DE HAAN WITH SPECIAL REFERENCE TO THE EFFECTS OF CARBON AND NITROGEN NUTRITION ON ITS PATHOGENICITY MSc AGRICULTURAL COLLEGE AND RESEARCH INSTITUTE VELLAYANI DIVISION OF PLANT PATHOLOGY 1966 61p. M RAMANATHA MENON TH 371902 371902 0 0 0 0 MTH KAUCOAV KAUCOAV 2023-11-15 0 J:4 N66 SR 12 KAU_COAV-Th95 2023-11-15 00:00:00 2023-11-15 TH