dc.contributor.author | Bigirimana, J. | |
dc.contributor.author | Kiarie, Njoroge | |
dc.contributor.author | Muthomi, J.W. | |
dc.contributor.author | Gahakwa, D. | |
dc.contributor.author | Phiri, N.A. | |
dc.contributor.author | Gichuru, E.K. | |
dc.date.accessioned | 2014-08-04T12:05:21Z | |
dc.date.available | 2014-08-04T12:05:21Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Bigirimana, J., Kiarie Njoroge, J.W. Muthomi, D. Gahakwa, N.A. Phiri and E.K. Gichuru (2011). Breeding For Resistance To Coffee Leaf Rust (hemileia Vastatrix Berkely And Brome) And Coffee Berry Disease (colletotrichum Kahawae Waller And Bridge) In Rwanda. aGRO 2011 Biennial Conference The Inaugural Biennial Conference of the Faculty of Agriculture ‘Optimization Of Agricultural Vaue Chains For Sustainable Development’ 26th – 28th September | en_US |
dc.identifier.uri | http://hdl.handle.net/11295/73615 | |
dc.description.abstract | Coffee leaf rust (CLR) and Coffee berry disease (CBD) are the most important diseases limiting
coffee production in Africa. This study was undertaken to evaluate Rwandan coffee germ-plasm
for resistance to CBD and CLR. Screening for resistance to CBD was done using the hypocotyl
inoculation test while selection for resistance to CLR was carried out using the leaf disc
inoculation method. In the pre-selection for CBD resistance, a mean grade of infection was
calculated for each genotype in every replication and subjected to analysis of variance. Highly
significant differences (p < 0.001) were observed between genotypes with regard to CBD
resistance indicating the presence of genetic diversity in the germplasm collection. Commercial
cultivar “BM 139” along with introductions such as Locale Bronze, Ke 5, Matinho, Blue
Mountain Guatemala, CIFC 8224 and Catimor T8663 showed resistance to CBD. In addition,
Catimor T8663, Selection 5A, Selection 6 and CIFC 8224 were highly resistant to CLR.
Percentage infected discs, days to sporulation and days to 50% sporulation were positively
correlated except for days to sporulation and the percentage sporulating disc where the
correlation was low and non significant. Cultivar BM 139 may be improved for resistance to
CLR by backcross breeding using one of the CLR resistant accessions such as Catimor
T8663.The study indicated that CIFC 8224 and Catimor T8663 introductions are resistant to both
CBD and CLR and they should be further tested for yield, cup quality and adaptability in varying
environmental conditions. | en_US |
dc.language.iso | en | en_US |
dc.title | Breeding For Resistance To Coffee Leaf Rust (hemileia Vastatrix Berkely And Brome) And Coffee Berry Disease (colletotrichum Kahawae Waller And Bridge) In Rwanda | en_US |
dc.type | Presentation | en_US |
dc.type.material | en | en_US |