Morphological Variability Among Fusarium oxysporum f. sp. ciceri Causing Wilt of Chickpea Gawande A. D., Mane S. S., Vyavhare G. F. Department of Plant Pathology, Dr. PDKV., Akola Online published on 15 December, 2016. Abstract The Fusarium oxysporum f. sp. ciceri (Foc) is serious soil borne pathogen of chickpea causing wilt and is a major biotic constraint in chickpea production worldwide. Thirty seven isolates of F. oxysporum f. sp. ciceri selected for morphological variability studies belong to different agro-ecological zones. All Foc isolates showed variation in morphology like, colony growth pattern, colony colour, radial growth and pigmentation. The mycelium growth F. oxysporum f. sp. ciceri on PDA was observed varied from thin, linear flat to thick, profuse, fluffy, aerial mycelium growthwith or without serrate margin. On the basis of radial growth the isolates of F. oxysporum f. sp. ciceri were categorized into 3 groups viz., fast growing (more than 70 mm), moderate growing (50 70 mm) and slow growing (less than 50 mm) on 7th days after inoculation. Based on pigmentation, F. oxysporum f. sp. ciceri isolates were categorized into three groups, Group-I (White-dull white colour), Group-II (Pink-Red-Saffron colour) and Group-III (Yellow-orange colour). Top Keywords Chickpea, Fusarium oxysporum f. sp. ciceri, morphology. Top |