Sokoine University of Agriculture

Races of Hemileia vastatrix and variation in pathogenicity of Colletotrichum kahawae isolates to compact coffee genotypes in Tanzania

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dc.contributor.author Kilambo, D. L.
dc.contributor.author Reuben, Shazia O. W. M.
dc.contributor.author Mamiro, D.
dc.date.accessioned 2017-02-27T14:06:50Z
dc.date.available 2017-02-27T14:06:50Z
dc.date.issued 2013-05-30
dc.identifier.issn 1927-0461
dc.identifier.uri https://www.suaire.sua.ac.tz/handle/123456789/1304
dc.description Journal of Plant Studies; Vol. 2, No. 2; 2013 en_US
dc.description.abstract Eighteen clones of coffee rust differentials were used to characterize rust races prevailing in the coffee growing areas in Arusha, Kilimanjaro, Mara, Bukoba, Kigoma, Mbeya and Ruvuma regions. The results showed the presence of seven new Hemileia vastatrix races causative agent for coffee leaf rust (CLR) in the surveyed coffee growing areas. The races were: XLI (v2, 5, 8), XLII (v2, 5, 7, 8 or v2, 5, 7, 8, 9), XV (v4, 5), XXX (v5, 8), XXXIII (v5, 7 or v5, 7, 9), XXXIV (v2, 5, 7 or v2, 5, 7, 9), XXXIX (v2, 4, 5, 6, 7, 8, 9). Four strains of Colletotrichum kahawae originating from 4 coffee ecosystems were used to test their level of pathogenicity on 16 compact coffee genotypes, Ctr088 and commercial variety N39. The four C. kahawae strains were less pathogenic to six compact coffee genotypes; CVT2, CVT4, CVT5, CVT7, CVT8 and CVT13, completely nil pathogenic to Ctr088, but significantly highly (P < 0.05) pathogenic to N39. Coffee genotype Ctr088 was confirmed to be a potential donor of developing coffee berry disease (CBD) varieties with durable resistance. Differential interaction between the compact genotypes and the four C. kahawae strains needs further investigation. en_US
dc.language.iso en en_US
dc.publisher Journal of Plant Studies en_US
dc.subject Races H. vastatrix en_US
dc.subject Pathogenicity C. kahawae en_US
dc.subject Compact coffee genotypes en_US
dc.title Races of Hemileia vastatrix and variation in pathogenicity of Colletotrichum kahawae isolates to compact coffee genotypes in Tanzania en_US
dc.type Article en_US
dc.url www.ccsenet.org/jps en_US


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