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Interaction between NON-pathogenic fusarium isolates and fusarlumspecies causing dry rot of potato tubers [electronic resource].

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EL-Hassan, K.I

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Language: English Summary language: Arabic Description: p.759-771Other title:

التفاعل بين عزلات الفيوزاريوم الغير ممرضة وأنواع الفيوزاريوم المسببة للعفن الجاف فى البطاطس.‪‪‪‪‪ [Added title page title]

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Annals of agricultural science, 2004 v. 49 (2) [electronic resource].

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In: Annals of Agricultural Science 2004.v.49(2)Summary: Twenty isolates ofvarious Fusarium spp. were isolated from rotted potato tubers and soil adhering to tubers and other plant materials. Five Fusarium spp., i.e. F. sambucinum, F. oxysporum, F. cu/morum, F. equiseti and F. semitectum were frequently isolated from rotted potato.tubers, while two isolates ofF. sambucinum were isolated from soil. Six isolates of F. oxysporum and F. solani were isolated from other plant materials. The pathogenicity of 14 isolates of Fusarium spp. from potato tubers or adhering soil showed varied reactions. Five isolates were pathogenic to tuber slices cv. Spunta and the remaining 9 isolates were not pathogenic. The highly pathogenic isolates were F. sambucinum (FSAI and FSA7). Meanwhile, F. solani (FSOI5) from peach and (FSOI7) from sugar cane were pathogenic and caused the highest infection percentage and severity to potato tuber slices.

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Twenty isolates ofvarious Fusarium spp. were isolated from rotted potato tubers and soil adhering to tubers and other plant materials. Five Fusarium spp., i.e. F. sambucinum, F. oxysporum, F. cu/morum, F. equiseti and F. semitectum were frequently isolated from rotted potato.tubers, while two isolates ofF. sambucinum were isolated from soil. Six isolates of F. oxysporum and F. solani were isolated from other plant materials. The pathogenicity of 14 isolates of Fusarium spp. from potato tubers or adhering soil showed varied reactions. Five isolates were pathogenic to tuber slices cv. Spunta and the remaining 9 isolates were not pathogenic. The highly pathogenic isolates were F. sambucinum (FSAI and FSA7). Meanwhile, F. solani (FSOI5) from peach and (FSOI7) from sugar cane were pathogenic and caused the highest infection percentage and severity to potato tuber slices.

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