Conference Documents: Recent submissions

Now showing items 281-300 of 597

    • Financing, handling, hardening and marketing of tissue culturederived planting material through nurseries: the case of banana and plantain in Kenya, Uganda and Burundi 

      Bauer, V.; Burkart, Stefan; Abele, S.; Kahangi, E.; Dubois, T.; Coyne, D.L.; Hoffmann, V. (2009)
      The distribution of contaminated planting material (suckers) remains a major cause of spread of pests and diseases in banana. A traditional subsistence staple in East Africa, banana is becoming increasingly a commercialized commodity in the region. Essential for effective commercialization of this crop, however, is the supply and use of uniform and healthy planting material. Tissue culture (TC) technology can help provide this. However, TC plantlets are delicate and require substantially greater ...

    • Effect of periodic vine pruning on the carotenoid profile of Umuspo 3 orange-fleshed sweet potato variety 

      Emetole, J.M.; Ojimelukwe, P.C.; Omodamiro, R.M.; Ukom, A.N.; Iheomamere, N.O.; Onuigbo, E.O.; Alamu, E.O. (Nigerian Institute of Food Science and Technology, 2017)

    • Rejuvenating the Nigerian economy through promotion of the food value chain 

      Shittu, T.A.; Olapade, A.A.; Adeola, A.A.; Oke, M.O.; Awoyale, W.; Karim, O.R.; Abu, J.O. (Nigerian Institute of Food Science and Technology, 2017)

    • Consumer's acceptability and willingness-to-pay for composite bread baked with high quality cassava flour from yellow-fleshed cassava roots 

      Awoyale, W.; Abass, A.B.; Alamu, E.O.; Maziya-Dixon, B.; Amaza, P. (Nigerian Institute of Food Science and Technology, 2017)

    • Screening of new improved water yam (Dioscorea alata) genotypes for the preparation of amala in Nigeria 

      Ukpabi, U.J.; Omodamiro, R.M.; Ikeorgu, J.G.; Asiedu, Robert (International Institute of Tropical Agriculture, 2010)
      Production of improved water yam (Dioscorea alata) genotypes that are suitable for the preparation of amala (a popular darkish Nigerian food) would likely enhance the economic importance of the crop in Nigeria. Fermented flour (oven dried and sun dried) made from tubers of eight new improved D.alata genotypes (TDa 00/00364, TDa 00/00194, TDa 00/00103, TDa 00/00104, 99/00240, 99/01176, 98/01166, Um 680) and two landraces (TDa 92-2, Ominelu) were reconstituted into amala, and organoleptically ...

    • Evaluation and delivery of disease resistant cassava varieties with comparable micronutrient density to farmers in Cameroon 

      Njukwe, E.; Amah, D.; Ndango, R.; Tindo, M.; Dixon, A.; Tenkouano, A. (International Institute of Tropical Agriculture, 2010)
      Cassava (Manihot esculenta Crantz) is one of the most important staple food crops of the people in Cameroon, with some estimated 204,548 hectares devoted to it and corresponding annual production of 1,998,819 metric tons. It plays a major role in efforts to alleviate food crisis due to its efficient production of food energy, year-round availability, tolerance to extreme stress conditions, and suitability to present farming and food systems. Traditionally, cassava roots are processed by various ...

    • Fabrication and testing of the pulverizer for starch extraction from cassava in Malawi 

      Nthoyiwa, A.; Hesse, H.; Makutu, L.; Mahungu, N.M.; Mkumbira, J.; Mhone, A.; Moyo, C.; Sandifolo, V.; Jumbo, S. (International Institute of Tropical Agriculture, 2010)
      A cassava pulverizer was fabricated and tested for starch extraction from cassava at Masinda Cassava Starch Cooperative Society in Malawi. When tested, the pulverizer increased the starch extraction percentage from cassava by 16.9% as compared to grating only and it showed that these results were significantly different (P<0.05) from the starch extraction from grating only. Given the current starch extraction rate of 18%, a 16.9% increase in the rate when the pulverizer is used represents a three ...

    • Importance of orange-fleshed sweetpotato cultivars in Malawi: a consolidation of morphological, organoleptic and beta-carotene analysis 

      Chipungu, F.P.; Saka, J.D.K.; Ambali, A.J.D.; Mahungu, N.M.; Mkumbira, J. (International Institute of Tropical Agriculture, 2010)
      In order to better understand farmers’ sweetpotato varieties grown in Malawi for subsequent improvement and effective contribution of agricultural research to livelihood, a study which involved germplasm collection and indigenous knowledge documentation survey in 2003 in Chikwawa and Nsanje Districts of the Shire Valley where vitamin A deficiency is prevalent was conducted. A total of 115 accessions were collected and planted at Bvumbwe Research Station in 2004 and 2005 seasons for morphological ...

    • Farmers access to agricultural inputs and services in Nigeria: panacea to competitive and sustainable cassava production and agro-enterprise development 

      Asumugha, G.N.; Tarawali, G.; Dixon, Alfred G.O. (International Institute of Tropical Agriculture, 2010)
      The critical role that agricultural inputs play in the modernization and competitiveness of the agriculture sector cannot be overemphasized. Inputs that have been identified as critical to commercial cassava enterprise include fertilizer, tractor hiring services, fabricators of various equipment for processing raw materials, credit support, crop protection products (Agrochemicals) and processors of these products. The principal emphasis of the cassava enterprise development project (CEDP) in Nigeria ...

    • Enhancing seed yam supply systems in West Africa 

      Akoroda, M.O.; Cladius-Cole, B.; Kikuno, H.; Okonkwo, C.C.; Aighewi, B.A.; Acha, A.I.; Asiedu, Robert (International Institute of Tropical Agriculture, 2010)
      Seed yams are an essential input into the Dioscorea yam economy of West Africa. Till date, the agronomic separation of seed yam production from that of ware tuber production for food has not been fully achieved. ‘Milking’ of food tubers to get seed yam continues as a dominant channel of seed yam supply. Adoption studies indicate the lack of total acceptance of the various suggested procedures for obtaining seed yams by farmers. The relationship of biological feasibilities and economically profitable ...

    • Competitiveness of cassava-based ethanol production in Southern Africa: a case of Angola, Malawi, Mozambique, South Africa and Zambia 

      Kambewa, E.; Mudimu, G.D.; Jumbo, S.; Mahungu, N.M.; Tafadzwa, E.; Nyanzunda, T.E.; Whingwiri, E. (International Institute of Tropical Agriculture, 2010)
      Whereas the global economy has from time immemorial depended on fossil fuels, technological innovations are steadily paving ways to relieve pressure from the dwindling resources and combat the environmental consequences that come along with oil extraction and use. Production and use of bio-fuels such as ethanol and bio-diesel are among such innovations that are attracting attention both in developed and developing economies. Although Africa is the largest producer of cassava on the globe, the ...

    • Optimal units of selection – how many plants are representative of diversity in collections of cowpea landrace accessions? 

      Hearne, S.J.; Franco, J.; Magembe, E. (International Institute of Tropical Agriculture, 2010)
      The International Institute of Tropical Agriculture houses the largest collection of cowpea landraces in the world. This collection has been studied using agro morphological, botanical and geographic descriptors to define a core collection with a smaller reference collection being defined thereafter using molecular markers. Within any collection of germplasm it is important to understand the level of inbreeding and heterogeneity as these have direct impact on germplasm maintenance strategies and ...

    • Sharing of responsibilities of cowpea and wild relative long term conservation 

      Dumet, D.; Fatokun, C.A.; Pasquet, R.; Ehlers, J.; Kumar, L.; Hearne, S.; Sonder, Kai; Aladele, S.; Boukar, O.; Vodouhe, R.S.; Garino, L. (International Institute of Tropical Agriculture, 2010-10)

    • Ex-ante evaluation of cassava research for development in Malawi: a farm household and random utility modeling approach 

      Rusike, J.; Jumbo, S.; Ntawuruhunga, Pheneas; Kawonga, J.M.; James, B.; Okechukwu, R.U.; Manyong, Victor M. (African Association of Agricultural Economics, 2010)
      Ex ante evaluation of agricultural research for development projects has become important in recent years for priority setting, ex post impact assessment and learning about generalizability to other populations and contexts. We apply farm household and random utility modeling to baseline survey data and evaluate the impact of a cassava research for development project in Malawi prior to its implementation. The project is being implemented to unlock the potential of cassava in response to the ...

    • Opening remarks and workshop objectives 

      Robson, M.; Beed, Fen D. (International Institute of Tropical Agriculture, 2010-01)

    • Panama disease: recognition, impact and control methods 

      Karangwa, P.; Beed, Fen D. (International Institute of Tropical Agriculture, 2010)

    • IPDN –West Africa review of progress in phase 1 

      Bandyopadhyay, Ranajit; Beed, Fen D. (International Plant Diagnostic Network, 2010)

    • Preliminary report on the status and host plant utilization by the Black Coffee Twig Borer, Xylosandrus compactus (Eichhoff) (Coleoptera: Curculionidae) in Uganda 

      Kagezi, G.H.; Kucel, P.; Mukasa, D.; Asten, Piet J.A. van; Musoli, P.C.; Kangire, A. (Association for Science and Information on Coffee, 2012-11)
      The Black Coffee Twig Borer, Xyalosandrus compactus (Eichhoff) is a new but rapidly spreading pest of coffee and other plant species. However, knowledge of its pest status, damage and host plant species utilization in Uganda is still limited. To ascertain its spread and impact, a survey was conducted on 250 farms in 25 districts in the 5 major coffee growing regions of Uganda. At farm level, 12 coffee trees were randomly sampled along a diagonal transect and assessed for X. compactus infestation. ...

    • IPM-omics: from genomics to extension for integrated pest management of cowpea 

      Agunbiade, T.A.; Steele, L.; Coates, B.; Gassmann, A.; Margam, V.; Ba, Malick N.; Dabiré-Binso, C.; Baoua, I.; Bello-Bravo, Julia; Seufferheld, F.; Sun, W.; Tamò, M.; Pittendrigh, Barry R. (International Institute of Tropical Agriculture, 2012)
      Insect pests often develop resistance to insecticides, and such resistance represents a serious management problem. Devising methods that concurrently delay resistance and minimize injury by insects to field crops and stored grain has long been a goal of Integrated Pest Management (IPM). A centerpiece of IPM has been the combined use of biological control agents and prudent application of chemical insecticides. Unfortunately, successful application of IPM has remained a challenge. This chapter ...

    • Biological control: a major component for the longterm cowpea pest management strategy 

      Tamò, M.; Srinivasan, R.; Dannon, E.A.; Agboton, C.; Datinon, B.; Dabiré, C.; Baoua, I.; Ba, Malick N.; Haruna, B.; Pittendrigh, Barry R. (International Institute of Tropical Agriculture, 2012)
      Current strategies to control insect pest problems in cowpea include, on the preventive side, host plant resistance and conservation biological control. Because very often these management options alone cannot provide adequate control, curative measures need to be taken, which include augmentative and inundative biological control, the application of biopesticides, and the judicious use of synthetic pesticides. Using synthetic pesticides as the first line of defense against insect pests is not ...