NATURAL
RESOURCES
INSTITUTE

Knowledge for a sustainable world

Development Programme:
Root and Tuber Crops in Development

Publications

Pest and Disease

Cassava

  • Gregory, P.J., Atkinson C.J., Bengough, A.G., Else M.A., Fernández-Fernández, F., Harrison, R.J., and Schmidt, S. (2013). Contributions of roots and rootstocks to sustainable, intensified crop production. Journal Experimental Botany, 64, 1209-1222.
  • Abarshi, M.M., Mohammed, I.U., Jeremiah, S.C., Legg, J.P., Kumar, P. Lava, Hillocks, R.J. and Maruthi, M.N. (2012) Multiplex RT-PCR assays for the simultaneous detection of both RNA and DNA viruses infecting cassava and the common occurrence of mixed infections by two cassava brown streak viruses in East Africa. Journal of Virological Methods, 179 (1). pp. 176-184. ISSN 0166-0934 (doi:10.1016/j.jviromet.2011.10.020)
  • Mohammed, I.U., Abarshi, M.M., Muli, B., Hillocks, R.J. and Maruthi, M.N. (2012) The symptom and genetic diversity of cassava brown streak viruses infecting cassava in East Africa. Advances in Virology, 2012. ISSN 1687-8639 (Print), 1687-8647 (Online) (doi:10.1155/2012/795697)
  • Mohammed, Ibrahim Umar (2012) Virus-host interactions in the cassava brown streak disease pathosystem. PhD thesis, University of Greenwich.
  • Musa, Muawiya Abarshi (2012) Molecular diagnostics, genetic diversity and generating infectious clones for cassava brown streak viruses. PhD thesis, University of Greenwich.
  • Omongo, Christopher A., Kawuki, Robert, Bellotti, Antony C., Alicai, Titus, Baguma, Yona, Maruthi, M.N., Bua, Anton and Colvin, John (2012) African cassava whitefly, Bemisia tabaci, resistance in African and South American cassava genotypes. Journal of Integrative Agriculture, 11 (2). pp. 327-336. ISSN 2095-3119 (doi:10.1016/S2095-3119(12)60017-3)
  • Adriko, J., Sserubombwe, W.S., Adipala, E., Bua, A., Thresh, M. and Edema, R. (2011) Response of improved cassava varieties in Uganda to cassava mosaic disease (CMD) and their inherent resistance mechanisms. African Journal of Agricultural Research, 6 (3). pp. 521-531. ISSN 1991-637X
  • Legg, J.P., Jeremiah, S.C., Obiero, H.M., Maruthi, M.N., Ndyetabula, I., Okao-Okuja, G., Bouwmeester, H., Bigirimana, S., Tata-Hangy, W., Gashaka, G., Mkamilo, G., Alicai, T. and Lava Kumar, P. (2011) Comparing the regional epidemiology of the cassava mosaic and cassava brown streak virus pandemics in Africa. Virus Research, 159 (2). pp. 161-170. ISSN 0168-1702 (doi:10.1016/j.virusres.2011.04.018)
  • Mbanzibwa, D.R., Tian, Y.P., Tugume, A.K., Patil, B.L., Yadav, J.S., Bagewadi, B., Abarshi, M.M., Alicai, T., Changadeya, W., Mkumbira, J., Muli, M.B., Mukasa, S.B., Tairo, F., Baguma, Y., Kyamanywa, S., Kullaya, A., Maruthi, M.N., Fauquet, C.M. and Valkonen, J.P.T. (2011) Evolution of cassava brown streak disease associated viruses. Journal of General Virology, 92 (4). pp. 974-987. ISSN 0022-1317 (Print), 1465-2099 (Online) (doi:10.1099/vir.0.026922-0)
  • Patil, Basavaprabu L., Ogwok, Emmanuel, Wagaba, Henry, Mohammed, Ibrahim U., Yadav, Jitender S., Bagewadi, Basavaraj, Taylor, Nigel J., Kreuze, Jan F., Maruthi, M.N., Alicai, Titus and Fauquet, Claude M. (2011) RNAi-mediated resistance to diverse isolates belonging to two virus species involved in Cassava brown streak disease. Molecular Plant Pathology, 12 (1). pp. 31-41. ISSN 1464-6722 (Print), 1364-3703 (Online) (doi:10.1111/j.1364-3703.2010.00650.x)
  • Abarshi, M.M., Mohammed, I.U., Wasswa, P., Hillocks, R.J., Holt, J., Legg, J.P., Seal, S.E. and Maruthi, M.N. (2010). Optimization of diagnostic RT-PCR protocols and sampling procedures for the reliable and cost-effective detection of Cassava brown streak virus. Journal of Virological Methods, 163, 353-359.
  • Lava Kumar, P., Akinbade, S.A., Dixon, A.G.O., Mahungu, N.M., Mutunda, M.P., Kiala, D., Londa, L. and Legg, J.P. (2009) First report of the occurence of East African cassava mosaic virus-Uganda (EACMV-UG) in Angola. Plant Pathology, 58 (2). p. 402. ISSN 0032-0862 (Print), 1365-3059 (Online) (doi:10.1111/j.1365-3059.2008.02010.x)
  • Alicai, T., Omongo, C.A., Maruthi, M.N., Hillocks, Rory, Baguma, Y., Kawuki, R., Bua, A., Otim-Nape, G.W. and Colvin, John (2007) Re-emergence of Cassava Brown Streak Disease in Uganda. Plant Disease, 91 (1). pp. 24-29. ISSN 0191-2917 (doi:10.1094/PD-91-0024)
  • Aswatha Narayana, D.S., Rangaswamy, K.T., Shankarappa, K.S., Maruthi, M.N., Lakshminarayana Reddy, C.N., Rekha, A.R. and Keshava Murthy, K.V. (2007) Distinct begomoviruses closely related to cassava mosaic viruses cause Indian Jatropha mosaic disease. International Journal of Virology, 3 (1). pp. 1-11. ISSN 1816-4900 (doi:10.3923/ijv.2007.1.11)
  • Bull, S.E., Karakacha, H.W., Briddon, R.W., Nzioki, S., Maruthi, M.N., Stanley, J. and Winter, S. (2003) Occurrence of East African cassava mosaic Zanzibar virus (EACMZV) in coastal Kenya. Plant Pathology, 52 (6). p. 791. ISSN 0032-0862 (doi:10.1111/j.1365-3059.2003.00900.x)
  • Manu-Aduening, J.A., Lamboll, Richard, Ampong Mensah, G. and Gibson, Richard W. (2007) Farmers' perceptions and knowledge of cassava pests and diseases and their approach to germplasm selection for resistance in Ghana. Annals of Applied Biology, 151 (2). pp. 189-198. ISSN 0003-4746 (doi:10.1111/j.1744-7348.2007.00182.x)
  • Colvin, John, Omongo, C.A., Govindappa, M.R., Stevenson, Philip C., Maruthi, M.N., Gibson, Gabriella, Seal, Susan and Muniyappa, V. (2006) Host-plant viral infection effects on arthropod-vector population growth, development and behaviour: management and epidemiological implications. In: Plant Virus Epidemiology. Advances in Virus Research, 67 . Academic Press / Elsevier B.V., Amsterdam, The Netherlands, pp. 419-452. ISBN 978-0-12-039866-9 (ISBN-13) 0-12-039866-4 (ISBN-10) ISSN 0065-3527 (doi:10.1016/S0065-3527(06)67011-5 (for book section) )
  • Sseruwagi, P., Maruthi, M.N., Colvin, J., Rey, M.E.C., Brown, J.K. and Legg, J.P. (2006) Colonization of non-cassava plant species by cassava whiteflies (Bemisia tabaci) in Uganda. Entomologia Experimentalis et Applicata, 119 (2). pp. 145-153. ISSN 0013-8703 (doi:10.1111/j.1570-7458.2006.00402.x)
  • Maruthi, M.N., Hillocks, Rory, Mtunda, K., Raya, M.D., Muhanna, M., Kiozia, H., Rekha, A.R., Colvin, John and Thresh, J.M. (2005) Transmission of Cassava brown streak virus by Bemisia tabaci (Gennadius). Journal Of Phytopathology, 153 (5). pp. 307-312. ISSN 0931-1785 (doi:10.1111/j.1439-0434.2005.00974.x)
  • Colvin, John, Omongo, C.A., Maruthi, M.N., Otim-Nape, G.W. and Thresh, J.M. (2004) Dual begomovirus infections and high Bemisia tabaci populations: two factors driving the spread of a cassava mosaic disease pandemic. Plant Pathology, 53 (5). pp. 577-584. ISSN 0032-0862 (doi:10.1111/j.0032-0862.2004.01062.x)
  • Maruthi, M.N., Colvin, John, Gibson, Gabriella, Thwaites, Richard M., Banks, Gina K. and Seal, Susan (2004) Reproductive incompatibility and cytochrome oxidase I gene sequence variability amongst host-adapted and geographically separate Bemisia tabaci populations (Hemiptera: Aleyrodidae). Systematic Entomology, 29 (4). pp. 560-568. ISSN 0307-6970 (doi:10.1111/j.0307-6970.2004.00272.x)
  • Maruthi, M.N., Navaneethan, S., Colvin, John and Hillocks, Rory (2004) Bionomics, morphometrics and molecular characterization of a cassava Bemisia afer (Priesner & Hosny) population. International Journal of Tropical Insect Science , 24 (4). pp. 323-329. ISSN 1742-7584 EISSN: 1742-7592 (doi:10.1079/IJT200438)
  • Maruthi, M.N., Seal, Susan, Colvin, John, Briddon, R.W. and Bull, S.E. (2004) East African cassava mosaic Zanzibar virus – a recombinant begomovirus species with a mild phenotype. Archives of Virology, 149 (12). pp. 2365-2377. ISSN 0304-8608 (Print) 1432-8798 (Online) (doi:10.1007/s00705-004-0380-1)
  • Maruthi, M.N., Colvin, J., Seal, S., Gibson, G. and Cooper, J. (2002) Co-adaptation between cassava mosaic geminiviruses and their local vector populations. Virus Research, 86 (1-2). pp. 71-85. ISSN 0168-1702 (doi:10.1016/S0168-1702(02)00051-5)
  • Maruthi, M.N., Colvin, John, Seal, Susan and Thresh, J.M. (2002) First report of a distinct begomovirus infecting cassava in Zanzibar. Plant Disease, 86 (2). p. 187. ISSN 0191-2917 (doi:10.1094/PDIS.2002.86.2.187A)
  • Maruthi, M.N., Colvin, John and Seal, Susan (2001) Mating compatibility, life-history traits, and RAPD-PCR variation in Bemisia tabaci associated with the cassava mosaic disease pandemic in East Africa. Entomologia Experimentalis et Applicata, 99 (1). pp. 13-23. ISSN 0013-8703 (doi:10.1046/j.1570-7458.2001.00797.x)

Sweet potato

  • Muyinza, H., Talwana, H.L., Mwanga, R.O. and Stevenson, P.C. (2012). Identifying resistance to Cylas Spp. infestation and damage in Ugandan sweet potato germplasm. International Journal of Pest Management, 58, 73-81.
  • Muyinza, Harriet, Stevenson, Philip C., Talwana, Herbert, Hall, David R., Farman, Dudley I. and Mwanga, Robert O.M. (2009) Root chemicals could offer opportunities for breeding for sweet potato resistance to the weevil cylas puncticollis boheman (coleoptera: apionidae). In: Aspects of African Biodiversity. Proceedings of the Pan Africa Chemistry Network Biodiversity Conference, Nairobi, 10-12 September 2008. Royal Society of Chemistry, UK, pp. 49-57. ISBN 9781847559487 (Print) 9781847559647 (online) (Submitted) (doi:10.1039/9781847559647)
  • Muyinza, Harriet, Talwana, Herbert L., Mwanga, Robert O.M. and Stevenson, Philip C. (2012) Sweetpotato weevil (Cylas spp.) resistance in African sweetpotato germplasm. International Journal of Pest Management, 58 (1). pp. 73-81. ISSN 0967-0874 (print), 1366-5863 (online) (doi:10.1080/09670874.2012.655701)
  • Wasswa, Peter (2012) Sweet potato viruses in Uganda: identification of a new virus, a mild strain of an old virus and reversion. PhD thesis, University of Greenwich.
  • Wasswa, P., Otto, B., Maruthi, M.N., Mukasa, S.B., Monger, W. and Gibson, R.W. (2011). First identification of a sweet potato begomovirus (sweepovirus) in Uganda: characterization, detection and distribution. Plant Pathology, 60, 1030-1039.
  • Aritua, V., Barg, E., Adipala, E., Gibson, R.W., Lesemann, D.E. and Vetten, H.J. (2009) Host range, purification, and genetic variability in Sweet potato chlorotic fleck virus. Plant Disease, 93 (1). pp. 87-93. ISSN 0191-2917 (doi:10.1094/PDIS-93-1-0087)
  • Aritua, V., Barg, E., Adipala, E., Gibson, Richard W. and Vetten, H.J. (2008) Further evidence for limited genetic diversity among East African isolates of sweet potato chlorotic stunt virus. Journal Of Phytopathology, 156 (3). pp. 181-189. ISSN 1439-0434 (doi:10.1111/j.1439-0434.2007.01338.x)
  • Gibson, Richard W. (2006) Working with farmers to control sweet potato virus disease in East Africa. In: Perspectives on pests II: achievements of research under UK Department for International Development Crop Protection Programme 2000–05. Natural Resources International Ltd., Aylesford, UK, pp. 28-30. ISBN 0954645278
  • First identification of a sweet potato begomovirus (sweepovirus) in Uganda: Characterization, detection and distribution. Plant Pathology, 60 (6). pp. 1030-1039. ISSN 1464-6722 (Print), 1365-3059 (Online) (doi:10.1111/j.1365-3059.2011.02464.x)

Yam

  • Coyne, Daniel L., Claudius-Cole, Abiodun O., Kenyon, Lawrence and Baimey, Hugues (2010) Differential effect of hot water treatment on whole tubers versus cut setts of yam (Dioscorea spp.). Pest Management Science, 66 (4). pp. 385-389. ISSN 1526-4998 (online) (doi:10.1002/ps.1887)
  • Bousalem, Mustapha, Durand, O., Scarcelli, N., Lebas, B.S.M., Kenyon, L., Marchand, J.-L., Lefort, F. and Seal, S.E. (2009) Dilemmas caused by endogenous pararetroviruses regarding the taxonomy and diagnosis of yam (Dioscorea spp.) badnaviruses: Analyses to support safe germplasm movement. Archives of Virology, 154 (2). pp. 297-314. ISSN 0304-8608 (Print), 1432-8798 (Online) (doi:10.1007/s00705-009-0311-2)
  • Kenyon, L., Lebas, B.S.M. and Seal, S.E. (2008) Yams (Dioscorea spp.) from the South Pacific Islands contain many novel badnaviruses: Implications for international movement of yam germplasm. Archives of Virology, 153 (5). pp. 877-889. ISSN 0304-8608 (Print), 1432-8798 (Online) (doi:10.1007/s00705-008-0062-5)
  • Seal, S. and Muller, E. (2007) Molecular analysis of a full-length sequence of a new yam badnavirus from Dioscorea sansibarensis. Archives of Virology, 152 (4). pp. 819-825. ISSN 0304-8608 (Print) 1432-8798 (Online) (doi:10.1007/s00705-006-0888-7)

General

  • Tang, Sanyi, Liang, Juhua, Tan, Yuanshun and Cheke, Robert A. (2013) Threshold conditions for integrated pest management models with pesticides that have residual effects. Journal of Mathematical Biology, 66 (1-2). pp. 1-35. ISSN 0303-6812 (Print), 1432-1416 (Online) (doi:10.1007/s00285-011-0501-x)
  • Liang, Juhua, Tang, Sanyi and Cheke, Robert A. (2012) An integrated pest management model with delayed responses to pesticide applications and its threshold dynamics. Nonlinear Analysis: Real World Applications, 13 (5). pp. 2352-2374. ISSN 1468-1218 (doi:10.1016/j.nonrwa.2012.02.003)
  • Tang, Sanyi, Tang, Guangyao and Cheke, Robert A. (2010) Optimum timing for integrated pest management: Modelling rates of pesticide application and natural enemy releases. Journal of Theoretical Biology, 264 (2). pp. 623-638. ISSN 0022-5193 (doi:10.1016/j.jtbi.2010.02.034)
  • Tang, Sanyi, Xiao, Yanni and Cheke, Robert A. (2010) Dynamical analysis of plant disease models with cultural control strategies and economic thresholds. Mathematics and Computers in Simulation, 80 (5). pp. 894-921. ISSN 0378-4754 (doi:10.1016/j.matcom.2009.10.004)
  • Maruthi, M.N., Colvin, J., Gibson, G., Thwaites, R. M., Banks, G. K. and Seal, S. (2004) Reproductive incompatibility and cytochrome oxidase I gene sequence variability amongst host-adapted and geographically separate Bemisia tabaci populations (Hemiptera: Aleyrodidae). Systematic Entomology, 29 (4). pp. 560-568. ISSN 0307-6970 (doi:10.1111/j.0307-6970.2004.00272.x)

Sweet potato

  • Mwanga, R.O.M., Niringiye, C., Alajo, A., Kigozi, B., Namukula, J., Mpembe, I., Tumwegamire, S., Gibson, R.W. and Yencho, C. (2011). 'NASPOT 11', a sweet potato cultivar bred by a participatory plant-breeding approach in Uganda. HortScience, 46, 317-321.
  • Gibson, Richard W., Byamukama, Emmanuel, Mpembe, Isaac, Kayongo, James and Mwanga, Robert O.M. (2008) Working with farmer groups in Uganda to develop new sweet potato cultivars: decentralisation and building on traditional approaches. Euphytica, 159 (1-2). pp. 217-228. ISSN 0014-2336 (Print),1573-5060 (Online) (doi:10.1007/s10681-007-9477-4)
  • Gibson, Richard, Mpembe, I. and Mwanga, R.O.M. (2011) Benefits of participatory plant breeding (PPB) as exemplified by the first-ever officially released PPB-bred sweet potato cultivar. The Journal of Agricultural Science, 149 (5). pp. 625-632. ISSN 0021-8596 (Print) 1469-5146 (Online) (doi:10.1017/S0021859611000190)

Cassava

  • Obadina, A.O., Oyewole, O.B., Sanni, L.O., Tomlins, K.I. and Westby, A. (2010) Improvement of the hygienic quality of wet 'fufu' produced in South West Nigeria. Food Control, 21 (5). pp. 639-643. ISSN 0956-7135 (doi:10.1016/j.foodcont.2009.09.009)
  • Obadina, A.O., Oyewole, O.B., Sanni, L.O., Tomlins, K.I. and Westby, A. (2008) Identification of hazards and critical control points (CCP) for cassava fufu processing in South-West Nigeria. Food Control, 19 (1). pp. 22-26. ISSN 0956-7135 (doi:10.1016/j.foodcont.2007.01.002)
  • Tomlins, Keith, Sanni, Lateef, Oyewole, Olusola B., Dipeolu, Adewale, Ayinde, Idris, Adebayo, Kolawole and Westby, Andrew (2007) Consumer acceptability and sensory evaluation of a fermented cassava product (Nigerian fufu). Journal of the Science of Food and Agriculture, 87 (10). pp. 1949-1956. ISSN 0022-5142 (doi:10.1002/jsfa.2941)
  • Tomlins, K., Sanni, L., Oyewole, O., Dipeolu, A., Ayinde, I., Adebayo, K. and Westby, A. (2007) Consumer acceptability and sensory evaluation of a fermented cassava product (Nigerian fufu), Journal of the Science of Food and Agriculture, 87, 1949 - 1956.
  • Obadina, A.O., Oyewole, O.B, Sanni, L.O. and Tomlins, K.I. (2006) Bio-preservative activities of Lactobacillus plantarum strains in fermenting Casssava 'fufu', African Journal of Biotechnology, 5, 620-623
  • Sanni, L.O., Oyewole, O. B., Dipeolu, A. O., Adebayo, K., Ayinde, I. A., White, J. L., Tomlins, K. I. and Westby, A. (2004) Effect of Traditional Variations in Processing and Storage on the Quality of Nigerian Fufu , Journal of Food Technology, 2, 225-231.

Potato

  • Bishop, Chris, Rees, Debbie, Cheema, Muhammad U.A., Harper, Glyn and Stroud, Graeme (2012) Potatoes. In: Crop Post-harvest: Science and Technology, Perishables. Wiley-Blackwell, Chichester, UK, pp. 334-359. ISBN 978-0-632-05725-2 (hbk), 978-1-4443-5463-8 (ebk)
  • Cheema, M.U.A. (2010) Dormancy and sprout control in root and tuber crops. PhD thesis, University of Greenwich.
  • Cheema, M.U.A., Rees, D., Westby, A. and Taylor, M. (2010) Hormonal control of sprouting of sweetpotatoes in storage. In: Proceedings of the Third International Conference Postharvest Unlimited 2008. Acta Horticulturae (858). International Society for Horticultural Science, Leuven, Belgium, pp. 173-177. ISBN 978-90-66052-06-2 ISSN 0567-7572
  • Tortoe, Charles, Orchard, John and Beezer, Anthony (2008) Artificial cell studies in simulated apple and potato starch cell complex during osmotic dehydration. Journal of Food Quality, 31 (5). pp. 559-570. ISSN 1745-4557 (online) (doi:10.1111/j.1745-4557.2008.00220.x)
  • Tortoe, Charles, Orchard, John, Beezer, Anthony and Tetteh, John (2008) Artificial neural networks in modelling osmotic dehydration of foods. Journal of Food Processing and Preservation, 32 (2). pp. 270-285. ISSN 1745-4549 (online) (doi:10.1111/j.1745-4549.2008.00178.x)
  • Tortoe, Charles, Orchard, John and Beezer, Anthony (2007) Osmotic dehydration kinetics of apple, banana and potato. International Journal of Food Science and Technology, 42 (3). pp. 312-318. ISSN 0950-5423 (doi:10.1111/j.1365-2621.2006.01225.x)
  • Orchard, John and Tortoe, Charles (2006) Microstructural changes of osmotically dehydrated tissues of apple, banana, and potato. Scanning, 28 (3). pp. 172-178. ISSN 0161-0457 (doi:10.1002/sca.4950280306)

Sweet potato

  • Ganiyat O. Fetuga., Keith Tomlins., Aurelie Bechoff., Folake O. Henshaw., Michael A. Idowu and Andrew Westby (2013) A Survey of Traditional Processing of Sweet Potato Flour for Amala, Consumption Pattern of Sweet Potato Amala and Awareness of Orange-Fleshed Sweet Potato (OFSP) in South West Nigeria, Journal of Food, Agriculture & Environment, accepted
  • Tomlins, Keith, Owori, Constance, Bechoff, Aurelie, Menya, Geoffrey and Westby, Andrew (2012) Relationship among the carotenoid content, dry matter content and sensory attributes of sweet potato. Food Chemistry, 131 (1). pp. 14-21. ISSN 0308-8146 (doi:10.1016/j.foodchem.2011.07.072)
  • Bechoff, Aurélie, Poulaert, Marie, Tomlins, Keith I., Westby, Andrew, Menya, Geoffrey, Young, Stephen and Dhuique-Mayer, Claudie (2011) Retention and bioaccessibility of β-carotene in blended foods containing orange-fleshed sweet potato flour. Journal of Agricultural and Food Chemistry, 59 (18). pp. 10373-10380. ISSN 0021-8561 (Print), 1520-5118 (Online) (doi:10.1021/jf201205y)
  • Bechoff, Aurélie, Tomlins, Keith, Dhuique-Mayer, Claudie, Dove, Richard and Westby, Andrew (2011) On-farm evaluation of the impact of drying and storage on the carotenoid content of orange-fleshed sweet potato (Ipomea batata Lam.). International Journal of Food Science & Technology, 46 (1). pp. 52-60. ISSN 0950-5423 (Print), 1365-2621 (Online) (doi:10.1111/j.1365-2621.2010.02450.x)
  • Bechoff, Aurélie, Westby, Andrew, Menya, Geoffrey and Tomlins, Keith I. (2011) Effect of pretreatments for retaining total carotenoids in dried and stored orange-fleshed-sweet potato chips. Journal of Food Quality, 34 (4). pp. 259-267. ISSN 1745-4557 (online) (doi:10.1111/j.1745-4557.2011.00391.x)
  • Chowdhury, S., Meenakshi, J. V., Tomlins, K. I. and Owori, C. (2011) Are consumers in developing countries willing to pay more for micronutrient-dense biofortified foods? Evidence from a field experiment in Uganda, American Journal of Agricultural Economics, 93, 83-97
  • Bechoff, Aurélie (2010) Investigating carotenoid loss after drying and storage of orange-fleshed sweet potato. PhD thesis, Natural Resources Institute.
  • Bechoff, Aurélie, Dhuique-Mayer, Claudie, Dornier, Manuel, Tomlins, Keith I., Boulanger, Renaud, Dufour, Dominique and Westby, Andrew (2010) Relationship between the kinetics of β-carotene degradation and formation of norisoprenoids in the storage of dried sweet potato chips. Food Chemistry, 121 (2). pp. 348-357. ISSN 0308-8146 (doi:10.1016/j.foodchem.2009.12.035)
  • Bechoff, Aurélie, Westby, Andrew, Owori, Constance, Menya, Geoffrey, Dhuique-Mayer, Claudie, Dufour, Dominique and Tomlins, Keith (2010) Effect of drying and storage on the degradation of total carotenoids in orange-fleshed sweetpotato cultivars. Journal of the Science of Food and Agriculture, 90 (4). pp. 622-629. ISSN 0022-5142 (Print), 1097-0010 (Online) (doi:10.1002/jsfa.3859)
  • Dziedzoave, N.T., Graffham, A.J., Westby, A., Otoo, J. and Komlaga, G. (2010) Influence of variety and growth environment on β-amylase activity of flour from sweet potato (Ipomea batatas). Food Control, 21 (2). pp. 162-165. ISSN 0956-7135 (doi:10.1016/j.foodcont.2009.05.005)
  • Bechoff, A., Dufour, D., Dhuique-Mayer, C., Marouzé, C., Reynes, M. and Westby, A. (2009) Effect of hot air, solar and sun drying treatments on provitamin A retention in orange-fleshed sweetpotato. Journal of Food Engineering, 92 (2). pp. 164-171. ISSN 0260-8774 (doi:10.1016/j.jfoodeng.2008.10.034)
  • Bechoff, Aurélie, Tomlins, Keith, Dhuique-Mayer, Claudie, Dufour, Dominique and Westby, Andrew (2009) Understanding losses of provitamin A after drying and storage of orange-fleshed sweetpotato (Ipomea batatas). In: The Fifteenth Symposium of the International Society for Tropical Root Crops, 2-6 Nov 2009, Lima, Peru. (In Press)
  • Bechoff, Aurélie, Westby, Andrew, Dufour, Dominique, Dhuique-Mayer, Claudie, Marouzé, C., Owori, Constance, Menya, Geoffrey and Tomlins, Keith (2007) Effect of drying and storage on the content of provitamin A of orange fleshed sweet potato (Ipomoa batatas): direct sun radiations do not have significant impact. In: 10th Triennial Symposium of the International Society for Tropical Root Crops - African Branch (ISTRC-AB), 8-12 Oct 2007, Maputo, Mozambique. (Unpublished)
  • Tomlins, Keith, Ndunguru, Gabriel, Kimenya, F., Ngendello, Theresia, Rwiza, Elizabeth, Amour, Rahila, van Oirschot, Quirien E.A. and Westby, Andrew (2007) On-farm evaluation of methods for storing fresh sweet potato roots in East Africa. Tropical Science, 47 (4). pp. 197-210. ISSN 0041-3291 (doi: 10.1002/ts.214)
  • Tomlins, K., Ndunguru, G., Kimenya, F., Ngendello, T., Rwiza, E., Amour, R., van Oirschot, Q. and Westby, A. (2007) On Farm evaluation of methods for storing fresh sweet potato roots in East Africa, Tropical Science, 47, 197-210
  • Tomlins, K., Ndunguru, G., Stambul, K., Joshua, N., Ngendello, T., Rwiza, E., Amour, R., Ramadhani, B., Kapande, A. and Westby, A. (2007) Sensory evaluation and consumer acceptability of pale-fleshed and orange-fleshed sweetpotato by school children and mothers with preschool children, Journal of the Science of Food and Agriculture, 87, 2436-2446.
  • Tomlins, K. I., Rwiza, E., Nyango, A., Amour, R., Ngendello, T., Kapinga, R., Rees, D. and Jolliffe, F. (2004) The use of sensory evaluation and consumer preference for the selection of sweetpotato cultivars in East Africa, Journal of the Science of Food and Agriculture, 84, 791 - 799.
  • van Oirschot, Q., Rees, D., Tomlins, K. I., Kapinga, R., Rwiza, E., Amour, R., Ngendello, T., Ndunguru., G and Westby. A. (2002). Reaching the full potential of sweet potatoes in East Africa, New Agriculturist, internet publication (http://www.new-agri.co.uk/02-6/focuson/focuson5.html).
  • Tomlins, K. I., Ndunguru, G. T., Rwiza, E. and Westby, A. (2002). Influence of pre-harvest curing and mechanical injury on the quality and shelf life of sweet potato (Ipomoea batatas (L) Lam) in East Africa, Journal of Horticultural Science and Biotechnology, 77, 399-403.
  • Tomlins, K. I., Ndunguru, G., Rwiza, E. and Westby, A. (2000). Post-harvest handling and transport of sweet potatoes and their influence on quality in Tanzania, Journal of Horticultural Science and Biotechnology, 75, 586-590.

Yam

  • Shehu, T. and Bhatti, R.S. (2012) The use of Yam flour (starch) as binder for sand mould production in Nigeria. World Applied Sciences Journal, 16 (6). pp. 858-862. ISSN 1818-495 (doi:wasj/wasj16(6)12/14.pdf)

Value chains and Socio-economic

Cassava

CAVA2 Case Studies

Case Studies for the CAVA2 project (Cassava: Adding Value for Africa Phase II), supported by the Bill & Melinda Gates Foundation:

Summers, G (2019)