01410naa a2200217 a 450000100080000000500110000800800410001910000170006024500650007726000090014230000230015149000080017452008300018265000090101265000120102165000130103365300120104665300080105865300140106677301120108014527822004-10-28       1985    bl uuuu     u00u1 u    #d1 aGHASSEMI, M.  aDiseases of sunflower and their economic importance in Iran.  c1985  ap.461-465.     t.2  vt.2  aFor many years sunflower was cultivated in Iran only for eating as nuts, and its cultivation as a surce for oil started from 1971, when different selected varieties imported. By gradual increasing of its cultivation different diseases, on root, stem, leaves, flower, head and seeds of sunflower increased, and among them most destructive diseases were: downy mildrew, white rot, root and stem base rot, dampling off, brown spot, sunflower rust, Fusarium wilt, Verticilium wilt, powdery mildrew, black rot, grey mold, flower and head damages,. Also some bacterial and virus diseases were observed, but with less importance, may research es were done to distinguish the mentioned diseases, in laboratory, greenhouse and experimental fields to control and reduce their...  damages, by chemicals and breeding resistant varieties.  aIran  aDoença  aGirassol  aDisease  aIra  aSunflower  tIn: CONFERENCIA INTERNACIONAL DE GIRASOL, 11., 1985, Mar del Plata. Actas. Mar del Plata: ASAGIR/ISA, 1985.