كلية الزراعة والغابات

نشر الاستاذ الدكتور علي كريم محمد الطائي التدريسي في قسم وقاية النبات في كلية الزراعة والغابات بحثه الموسوم(Physiological Races of Fusariumoxysporum f. sp. cicerisin Iraq)في مجلة Journal of Life Sciences وهي مجلة علمية رصينة ومحكمة تصدر دوريا في الولايات المتحدة الامريكيةPhysiological Races of Fusariumoxysporum f. sp. cicerisin IraqAli Kareem Al-Taae1 Hamid Ali Hadwan2and Saleh Ahmed Eesa Al-Jobory11. Plant Protection Department, College of Agric. &Forestry, Mosul University, Mosul 41002,Iraq2. Plant protection office ,Abu –GhrabeMinistry of Agriculture, Baghdad IraqReceived:January 03, 2013 /Accepted: March21, 2013 / Published: October 30, 2013.Abstract: Twenty isolates of Fusariumoxysporum f. sp. ciceris were isolated from wilted chickpea plants obtained from different districts of north part of Iraq to assess variability in pathogenicity of the populations.Each isolate was tested on 12 differential chickpea varieties. Isolates showed highly significant variation in wilt severity on the differential varieties.Based on the reaction types that induced on differential varieties, isolates were grouped into four groups, First group included isolates FocS1, FocQ7, FocQ10, FocF13, FocH17 and FocH18; the second group included isolates FocS2, FocS3, FocS4, FocQ5, FocQ8, FocQ9, FocF11, FocF12, FocF14 and FocH19; the third group included isolates FocF15, FocH16, FocH20; where the isolate FocQ6 was placed in the fourth group. Results showed that the percentage of genetic similarity was ranged 42% to 100% and was 42% between the first group and other groups and 72% between the three groups the rest and thus this indicate the presence of four races of the fungus which are zero, 4, 5, and 1B/C this represent the first record of these races in Iraq.Keywords:Chickpea wilt, Cicerarietinum, Fusariumoxysporumf. sp.ciceris, pathogenic variability.