Titles (64)Keywords (1)Abstracts (2)
A mode of survival of Xanthomonas manihotis, the cassava bacterial blight pathogen: paper presented at the Fourth Annual General Meeting, Nigerian Society for Plant Production, Ibadan, Terry, E. R., NSPP abstracts; 1972-1975: occasional publication number 1 of the Nigerian Society for Plant Protection, 1975.
 
Adaptation and implementation of integrated control measures of cassava bacterial blight through collaborative research between European partners, IITA and NARS in Africa, Wydra, K., Ahouhuendo, B., Banito, A., Cooper, R., Kemp, R., Kpemoua, K., Rudolph, K., Witt, F., Verdier, V. and Zinsou, V.*, pages S8-24, 2001.
 
Analysis of virulence and metabolic fingerprints of Xanthomonas campertris pv. vignicola strains causing bacterial blight and bacterial pustule on compea in different geographic areas, Khatri-Chhetri, G., Wydra, K. and Rudolph, K., 1996.
 
Assessment of cassava genotypes for resistance to cassava mosaic disease, cassava bacterial blight and cassava green mite at a lowland and mid-altitude site in Nigeria, Akparobi, S., Togun, A.* and Ekanayake, I. J., in: African Crop Science Journal, volume 6, pages 1-12, 1998.
 
Assessment of large population of cassava accessions for resistant to cassava bacterial blight infection in the screen house environment, Ogunjobi, A.*, Fagade, O.*, Dixon, A. and Bandyopadhyay, R., in: Journal of Agricultural Biotechnology and Sustainable Development, volume 2, number 6, pages 87-91, ISSN 2141-2340, 2010.
 
Breeding cassava for resistance to Cassava Bacterial Blight., Hahn, S. K., in: Proceedings on an Interdisciplinary Workshop, IITA, Ibadan, Nigeria. June 26 -30, 1978, pages 34, Centre for Overseas Pest Research (Ministry of Overseas Development), London, UK., IITA, 1978.
 
Breeding for resistance to cassava bacterial blight, 1977.
 
Breeding for resistance to cassava bacterial blight, Hahn, S. K. and Howland, A. K., in: Cassava bacterial blight: report of an interdiciplinary workshop held at IITA, Ibadan, Nigeria, 1-4 November 1976, pages 23, International Development Research Centre (IDRC), Ottawa, Canada, 1977.
 
Breeding for resistance to cassava bacterial blight at IITA: proceedings of the First Workshop on Cassava Bacterial Blight in Nigeria, Umudike, 28th April - 1st May 1974, Hahn, S. K., Howland, A. K. and Okoli, C., in: Proceedings of the First Workshop on Cassava Bacterial Blight in Nigeria, held at the Federal Agrictural Research and Training Station, Umudike, 28th April - 1st May 1974 edited by Okpala, E. U. and H. J. Glaser, pages 11-14, 1974.
 
Breeding of Cassava for Resistance to Cassava Bacterial Blight (CBB). PANS. 1978, Hahn, S. K., 1978.
 
Breeding of Cassava for Resistance to Cassava Mosaic CMD and Bacterial Blight CBB Diseases in Africa, Louvain-la-Neuve, 1978.
 
Cassava Bacterial Blight in Africa: past, present and future. Proceedings on an Interdisciplinary Workshop, IITA, Ibadan, Nigeria. June 26 -30, 1978., Centre for Overseas Pest Research (Ministry of Overseas Development), London, UK., IDRC/IITA/COPR, 1978.
 
Cassava Bacterial Blight: Abstracts of Literature. 102 p, Ibekwe, G. O., 1978.
 
Cefazolin-Trehalose agar medium, a semi-selective medium for Xanthomonas campestris pv. manihotis (Xcm), the incitant of cassava bacterial blight, Fessehaie, A., Wydra, K. and Rudolph, K., in: Plant pathogenic bacteria: proceedings of the IXth international conference, Madras, India, pages 100-106, 1999.
 
Cefazolin-trehalose agar medium, a semi-selective medium for Xanthomonas campestris pv. manihotis (Xcm), the incitant of Cassava Bacterial Blight (CBB), Fessehaie, A., Wydra, K. and Rudolph, K., pages 13-14, 1996.
 
Characterization of newly introduced bacterial blight pathogen risk to African rice production and preparedness plans to limit the spread of seed-borne pathogen of high phytosanitary importance: Working paper, Onaga, E., Pinili, D.*, van Schepler, L.*, Eyokia, M., Euridice, T., Dossou, A. B., Bachabi, F., Gouete, M. A., Adjoua, M., Negussie, Z., Amoah, N. K. A., Manneh, B. and Kumar, P. L., 2023.
 
Characterization of strains of Xanthomonas compestris pv. manihotis (Xcm), incitant of cassava (Manihot esculenta Crantz) bacterial blight with physiological, biochemical and serological methods, Fessehaie, A., Wydra, K., Janse, J. D. and Rudolph, K., 1996.
 
Combining ability of cassava genotypes for cassava mosaic disease and cassava bacterial blight, yield and its related components in two ecological zones in Ghana, Parkes, E., Fregene, M.*, Dixon, A.*, Peprah, B. B.* and Labuschagne, M.*, in: Euphytica, volume 194, number 1, pages 13-24, ISSN 0014-2336, 2013. [DOI]
 
Control of cassava bacterial blight; the Nigerian experience, Ezeilo, W. N., 1976.
 
Cultural considerations in control of cassava bacterial blight (CBB): proceedings of the First Workshop on Cassava Bacterial Blight in Nigeria, Umudike, 28th April - 1st May 1974, Ezumah, H. C. and Terry, E. R., in: Proceedings of the First Workshop on Cassava Bacterial Blight in Nigeria, held at the Federal Agrictural Research and Training Station, Umudike, 28th April - 1st May 1974 edited by Okpala, E. U. and H. J. Glaser, pages 25-32, 1974.
 
Development of a semi-selective medium for quick and easy detection of Xanthomonas campestris pv. vignicola, incitant of cowpea bacterial blight, Khatri-Chhetri, G., Wydra, K. and Rudolph, K., in: Plant pathogenic bacteria: proceedings of the IXth international conference, Madras, India, pages 127-134, 1999.
 
Development of a semi-selective medium for quick and easy detection of Xanthomonas campestris pv. vignicola, incitrant of cowpea bacterial blight, Khatri-Chhetri, G., Wydra, K. and Rudolph, K., 1996.
 
Diagnosis of cassava bacterial blight disease, in: Cassava bacterial blight: report of an interdiciplinary workshop held at IITA, Ibadan, Nigeria, 1-4 November 1976, pages 5-8, International Development Research Centre (IDRC), Ottawa, Canada, 1977.
 
Distribution and current status of bacterial blight and fungal diseases of cassava in Nigeria: ICP technical report 01, Onyeka, T., Dixon, A., Bandyopadhyay, R., Okechukwu, R. and Bamkefa, B., 2005.
 
Distribution of bacterial blight and fungal diseases of cassava in Cameroon, Bamkefa, B., Onyeka, T., Dixon, A., Okechukwu, R. and Bandyopadhyay, R., in: Triennial Symposium of the ISTRC - Africa Branch 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Distribution of bacterial blight and fungal diseases of cassava in Nigeria, Bamkefa, B., Onyeka, T., Dixon, A., Okechukwu, R. and Bandyopadhyay, R., in: Ninth Triennial Symposium of the International Society for Tropical Root Crops - Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Effect of cassava bacterial blight on cassava root yield in different ecozones and influence of the environment on sympton development, Wydra, K., Fanou, A.*, Dixon, A. and Rudolph, K., pages 562-569, 2001.
 
Evaluation of cowpea (Vigna unguiculata (L.) Walp.) landraces to bacterial blight caused by Xanthomonas axonopodis pv. vignicola, Durojaye, H. A., Moukoumbi, Y. D., Dania, V. O.*, Boukar, O., Bandyopadhyay, R. and Ortega-Beltran, A., in: Crop Protection, volume 116, pages 77-81, ISSN 0261-2194, 2019. [DOI]
 
Evaluation of seed treatment chemicals for the control of seedling bacterial blight of cowpea in Northern Nigeria, Alabi, O. and Emechebe, A., in: Archives of Phytopathology and Plant Protection, volume 37, pages 119-122, 2004.
 
Expresion of field resistance and tolerance in cassava and cowpea to cassava bacterial blight and cowpea bacterial blight respectively. DPG Working Group 'Plant Protection in the Tropics and Subtropics', Berlin, July 1997, Wydra, K., Fanou, A.*, Sikirou, R., Adamou, I., Zinsou, V.* and Avocanh, A., in: Phytomedizin, volume 27, number 4, pages 45-46, ISSN 0944-0933, 1997.
 
Factors affecting the incidence of cassava bacterial blight in Africa, Terry, E. R., in: Proceedings of the Fourth Symposium of the International Society for Tropical Root Crops held 1-7 August 1976, Cali, Columbia, International Development Research Centre, Ottawa, Canada, 1977.
 
Farmer perceptions of cassava bacterial blight disease in Oyo State , south-west, Nigeria, Chukwuka, K.*, Okechukwu, R. and Azorji, J.*, in: African Journal of Root and Tuber Crops, volume 10, number 1, pages 67-74, ISSN 1118-2075, 2013.
 
Field evaluation of improved cowpea lines for resistance to bacterial blight, virus and striga under natural infestation in the West African savannas, Ajeigbe, H., Singh, B. and Emechebe, A., in: African Journal of Biotechnology, volume 7, number 20, pages 3563-3568, ISSN 1684-5315, 2008.
 
Genetic variation of the cassava bacterial blight pathogen, Xanthomonas campestris pv. manihotis, originating from different ecoregions in Africa, Assigbetse, K., Verdier, V., Wydra, K., Rudolph, K. and Geiger, J. P., in: Plant pathogenic bacteria: proceedings of the IXth international conference, Madras, India, pages 223-229, 1999.
 
Genetic variation of the cassava bacterial blight pathogen, Xanthomonas campestris pv. manihotis, originating from different regions in Africa, Assigbetse, K., Verdier, V., Wydra, K., Rudolph, K. and Geiger, J. P., 1996.
 
Genotype x environment effects on severity of cassava bacterial blight disease caused by Xanthomonas axonopodis pv. manihotis, Dixon, A., Ngeve, J. and Nukenine, E., in: European Journal of Plant Pathology, volume 108, number 8, pages 763-770, 2002.
 
High-throughput genomic sequencing of cassava bacterial blight strains identifies conserved effectors to target for durable resistance, Bart, R., Cohn, M., Kassen, A., McCallum, E., Shybut, M., Petriello, A., Krasileva, K., Dahlbeck, D., Medina, C.*, Alicai, T.*, Kumar, P. L., Moreira, L.*, Neto, J.*, Verdier, V., Santana, M.*, Kositcharoenkul, N.*, Vanderschuren, H., Gruissem, W., Bernal, A.* and Staskawicz, B., in: Proceedings of the National Academy of Sciences of the United States of America (PNAS), volume 109, number 28, pages E1972-E1979, ISSN 0027-8424, 2012. [DOI]
 
Identification of markers associated with bacterial blight resistance loci in cowpea [Vigna unguiculata (L.) Walp.], Agbicodo, E., Fatokun, C., Bandyopadhyay, R., Wydra, K., Diop, N. N., Muchero, W., Ehlers, J. D., Roberts, P. A., Close, T. J., Visser, R.G.F. and van der Linden, C. G., in: Euphytica, volume 175, number 2, pages 215-226, ISSN 0014-2336, 2010. [DOI]
 
Integrated control of Cassava Bacterial Blight (CBB) in Africa, Terry, E. R., IDRC/IITA, 1978.
 
Integrated control of cassava bacterial blight by (1) combined cultural control measures and (2) host plant resistance adapted to agroecological conditions, and (3) improved pathogen, Wydra, K., Agbicodo, E., Ahouhuendo, B., Batino, A., Cooper, R. and Jorge, R., in: The small processor and development of local food industries for market economy: proceedings of the 8th Symposium of the International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan,Nigeria, pages 506-515, Intrnational Institute of Tropical Agriculture(IITA), Ibadan, Nigeria, 2004.
 
Molecular characterization of the incitant of cowpea bacterial blight and pustule Xanthomonas campestris pv. vignicola, Verdier, V., Assigbetse, K., Khatri-Chhetri, G., Wydra, K., Rudolph, K. and Geiger, J. P., in: European Journal of Plant Pathology, volume 104, pages 595-602, 1998.
 
Molecular characterization of the incitant of cowpea bacterial blight and pustule, Xanthomonas campertris pv. vignicola, Assigbetse, K., Verdier, V., Wydra, K., Rudolph, K. and Geiger, J. P., 1996.
 
Pathological variation in cassava bacterial blight (CBB) isolates in Nigeria, Ogunjobi, A.*, Fagade, O.*, Dixon, A. and Amusa, N. A., in: World Applied Sciences Journal, volume 2, number 6, pages 587-593, ISSN 1818-4952, 2007.
 
Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agro-ecological zones of Nigeria, Onyeka, T., Owolade, F., Ogunjobi, A.*, Dixon, A., Okechukwu, R., Bandyopadhyay, R. and Bamkefa, B., in: African Journal of Agricultural Research, volume 3, number 4, pages 297-304, ISSN 1991-637X, 2008.
 
Reactions of four F1 mapping populations to cassava mosaic disease and cassava bacterial blight, Akano, A. O. and Dixon, A., in: Revista Brasileira de Mandioca (Brazilian Cassava Journal), volume 17, pages 23, 1998.
 
Some epidemiological factors affecting the survival and dissemination of Xanthomonas manihotis: proceedings of the First Workshop on Cassava Bacterial Blight in Nigeria, Umudike, 28th April - 1st May 1974, Terry, E. R., in: Proceedings of the First Workshop on Cassava Bacterial Blight in Nigeria, held at the Federal Agrictural Research and Training Station, Umudike, 28th April - 1st May 1974 edited by Okpala, E. U. and H. J. Glaser, 1974.
 
Sources of resistance to cowpea bacterial blight disease in Nigeria, Okechukwu, R. and Ekpo, E.*, in: Journal of Phytopathology, volume 152, pages 345-351, 2004.
 
Study of cassava bacterial blight pathogenesis: Identification and characterization of a toxic substance produced by Xanthomonas campestris pv. manihotis, Perreaux, D., in: Seminer, 16 December 1982, 1982.
 
Survey of cassava (Manihot esculenta Crantz) diseases in different ecozones of West Africa and virulence analysis of strains of Xanthomonas campestris pv. manihotis causing cassava bacterial blight, Wydra, K. and Msikita, W., 1996.
 
Survey of the current distribution and status of bacterial blight and fungal diseases of cassava in Guinea, Bamkefa, B., Bah, E.* and Dixon, A.*, in: African Journal of Root and Tuber Crops, volume 9, number 1, pages 1-5, ISSN 1118-2075, 2011.
 
Survey of the distribution and current status of bacterial blight and fungal diseases of cassava in Nigeria, International Institute of Tropical Agriculture (IITA), 2004.
 
Survey of the distribution and current status of bacterial blight and fungal diseases of cassava in Nigeria, Bamkefa, B., Onyeka, T., Dixon, A. and Bandyopadhyay, R., in: Proceedings of 9th ISTRC-AB symposium, pages 683-692, Mombasa, Kenya, 2007.
 
Synergistic relationship of bacterial blight and anthracnose disease pathogen in cassava multiple infection, Fokunang, C.*, Ikotun, T.* and Dixon, A., in: Online Journal of Biological Science, volume 3, pages 596-606, 2003.
 
The diagnosis of cassava bacterial blight disease, Terry, E. R., 1976.
 
The effects of climatic conditions on cassava bacterial blight development and dissemination, Theberge, R. L., in: Proceedings of the seminar on Agrometeorology and Crop Protection in the Lowland Humid and Sub-humid Tropics, edited by D. Rijks & G. Mathys, pages 51-57, World Meteorological Organization, 1987.
 
The expression of resistance against Xanthomonas campestris pv. manihotis, incitant of cassava bacterial blight in a resistant cassava variety compared to a susceptible variety, Wydra, K., Zinsou, V.* and Fanou, A.*, 1996.
 
The expression of resistance against Xanthomonas campestris pv. manihotis, incitant of cassava bacterial blight, in a resistant cassava variety compared to a susceptible variety, Wydra, K., Zinsou, V.* and Fanou, A.*, in: Plant pathogenic bacteria: proceedings of the IXth international conference, Madras, India, pages 583-592, 1999.
 
The Present Status of Cassava Bacterial Blight in Zaire, Pacumbaba, R. P. and Ezumah, H. C., 1978.
 
The status of cassava mosaic disease, bacterial blight and anthracnose as constraints to cassava production in South Cameroon, Mwangi, M., Nolte, C. and Bandyopadhyay, R., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya., 2004.
 
The status of cassava mosaic disease, bacterial blight and anthracnose as constraints to cassava production in the Pouma region of south Cameroon, Mwangi, M., Bandyopadhyay, R. and Nolte, C., in: Proceedings of 9th ISTRC-AB symposium, pages 587-592, Mombasa, Kenya, 2007.
 
Variability of strains of Xanthomonas campestris pv. manihotis, incitant of cassava bacterial blight, from different geographic origins in pathological, physiological, biochemical and serological characteristics, Wydra, K., Fessehaie, A., Fanou, A.*, Sikirou, R., Janse, J. and Rudolph, K., in: Plant pathogenic bacteria: proceedings of the IXth international conference, Madras, India, pages 317-323, 1999.
 
Variability of strains of Xanthomonas campestris pv. vignicola, incitant of cowpea bacterial blight and bacterial pustule, collected in several African and other countries, Khatri-Chhetri, G., Wydra, K. and Rudolph, K., in: Plant pathogenic bacteria: proceedings of the IXth international conference, Madras, India, pages 296-302, 1999.
 
Variability of strains of Xanthomonas compestris pv. manihotis (Xcm), incitant of cassava (Manihot esculenta Crantz) bacterial blight from different geographic origins in pathological, physiological, biochemical and serological characteristics, Wydra, K., Fessehaie, A., Fanou, A.*, Rudolph, K. and Sikirou, J. J., 1996.
 
Variability of stranis of Xanthomonas campestris pv. vognicola, incitrant of cowpea bacterial blight and bacterial pustule, collected in several African and other countries, Khatri-Chhetri, G., Wydra, K. and Rudolph, K., 1996.
 
Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agro-ecological zones of Nigeria, Onyeka, T., Owolade, F., Ogunjobi, A.*, Dixon, A., Okechukwu, R., Bandyopadhyay, R. and Bamkefa, B., in: African Journal of Agricultural Research, volume 3, number 4, pages 297-304, ISSN 1991-637X, 2008.
 
Keywords:anthracnose, bacterial blight, cassava, Colletotrichum gloeosporioides prevalence, severity, Xanthomonas axonopodis

Genetic gains from 30 years of cassava breeding in Nigeria for storage root yield and disease resistance in elite cassava genotypes, Okechukwu, R. and Dixon, A., in: Journal of Crop Improvement, volume 22, number 2, pages 181-208, 2008.
 
Abstract:
Cassava (Manihot esculenta Crantz) is crucial for both food security and poverty alleviation in Sub-Saharan Africa (SSA). Cassava improvement for SSA started at the International Institute of Tropical Agriculture in 1970, and several improved lines with different characteristics have been developed to date. The primary focus of breeding work has been to increase root yield, early bulking, tolerance to biotic and abiotic stresses, and increased dry matter content. This paper represents a study of 112 varieties cloned and introduced between 1970 and 2000, and evaluated in 2003 and 2004 to quantify genetic gains in root yield and disease resistance. The genetic gain per year was 1.3% for fresh root yield, 1.2% for dry root yield, 0.65% for cassava mosaic disease resistance, 0.21% for cassava anthracnose disease resistance, and -0.03% for cassava bacterial blight disease resistance. Though there was no statistical significance in the net negative genetic gain in cassava bacterial blight resistance, it is essential that more emphasis be placed on improving this trait to enhance stability and productivity in African environments.

Screening landraces for additional sources of field resistance to Cassava Mosaic Disease and green mite for integration into the Cassava Improvement Program, Raji, A., Ladeinde, O.* and Dixon, A., in: Journal of Integrative Plant Biology, volume 50, number 3, pages 311-318, 2008.
 
Abstract:
Twelve cassava landraces were evaluated for sources of resistance genes to diseases and pests of major economic importance in Africa. The objective was to assess their levels of field resistance to mosaic disease (ACMD), bacterial blight (CBB), anthracnose (CAD), and green mite (CGM), compared to TMS30572, an elite cultivar widely adopted in Africa. Considerable genotypic variation was observed among cultivars for resistance to ACMD and CGM but not for CBB and CAD. The lowest mean incidence of 12% and severity of 1.8 on a scale of 1-5 for ACMD was recorded for Atu, a landrace with farmer acceptable qualities. In comparison, the improved cultivar, TMS 30572, had a mean disease incidence of 72% and a severity score of 2.8. Another landrace, MS-20 had the lowest CGM damage score (2.1) while TMS 30572 emerged as one of the susceptible cultivars with a damage score of 3. Additional sources of resistance to ACMD and CGM that may possibly be better than the popular improved cultivar, TMS 30572, were identified in this study. These could serve as novel sources of additional genes to complement existing resources for elite cassava breeding in Africa.