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Caractérisation morphologique, culturale et pathogénique de Vertcillium dahliae Kleb., agent causal de la verticilliose de l’olivier (Olea europea L.)

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dc.contributor.author OGAB, Saliha
dc.contributor.author ZOUDJI, Fatima Zohra
dc.date.accessioned 2018-12-20T08:22:24Z
dc.date.available 2018-12-20T08:22:24Z
dc.date.issued 2017
dc.identifier.uri http://e-biblio.univ-mosta.dz/handle/123456789/7315
dc.description.abstract Verticilium dahliae Kleb, fungus responsable of verticillium of the olive tree causes important damages on the tree and now touches many olive growing regions in algeria. For the first estimates , the actuel impact of the desease reaches 35 %. Five isolates of the parasite from Sidi Belabes ( S1/P1,S2/P1) and from Mostaganem (S3/P1,S4/P1, S5/P1) are identified and characterized morphologically and culturally , tested on temperature and pH range , During the growing of their settlements on cultural field PDA , V8 Agar and middle pea ,Then pathogenic due to the study of the reaction on anoter plant, tomato (Solanum lycopersicum). The different field of cultural and the variation of the pH affect on the growing and the aspect of fungal cultural.The isolates of verticillium dahliae present a growing and optimal sporulation on field V8 agar at pH 6.5 and temperature of 22%C. The pathogenicity of three isolates of V. dahliae tested by artificial inoculation on three tomato varieties, at the rate of 10 seedling by isolate and variety gave to estimate the (F.A.I ) Foliar Alteration Index. The observed symptoms (leaf foliage ,yellowing and droping leaves) gave evidence of the important power of the isolate pathogenic S3/P1 from the region of Bouguirat (Mostaganem). en_US
dc.language.iso fr en_US
dc.subject Olea europea L en_US
dc.subject Verticillium dahliae Kleb en_US
dc.subject characterization morphologic and cultural en_US
dc.subject power pathogenic en_US
dc.subject artificial inoculation, F.A.I en_US
dc.title Caractérisation morphologique, culturale et pathogénique de Vertcillium dahliae Kleb., agent causal de la verticilliose de l’olivier (Olea europea L.) en_US
dc.type Other en_US


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