IITA Bibliography System: Recent submissions

Now showing items 1781-1800 of 8126

    • A simple and rapid protocol for the genetic transformation of Ensete ventricosum 

      Matheka, J.; Tripathi, J.N.; Merga, I.; Gebre, E.; Tripathi, L. (2019-12)
      Enset (Ensete ventricosum), also known as Ethiopian banana, is a food security crop for more than 20 million people in Ethiopia. As conventional breeding of enset is very challenging, genetic engineering is an alternative option to introduce important traits such as enhanced disease resistance and nutritional value. Genetic transformation and subsequent regeneration of transgenic enset has never been reported mainly due to challenges in developing transformation protocols for this tropical species. ...

    • A detached leaf assay to rapidly screen for resistance of maize to Bipolaris maydis, the causal agent of southern corn leaf blight 

      Aregbesola, E.; Ortega-Beltran, A.; Falade, T.; Jonathan, G.; Hearne, S.; Bandyopadhyay, R. (2019)
      Southern corn leaf blight (SCLB), caused by the fungus Bipolaris maydis, is a disease that significantly affects maize productivity across the globe. A detached leaf assay (DLA) was developed to rapidly assess maize resistance to SCLB. Several experiments were conducted to: (i) identify a highly virulent B. maydis isolate; and to determine the most appropriate (ii) phytohormone to maintain viability of maize leaf tissue, (iii) leaf age for the assay, and (iv) inoculum concentration. Once optimized, ...

    • Diagnosis of crop secondary and micro-nutrient deficiencies in sub-Saharan Africa 

      Wortmann, C.S.; Kaizzi, K.C.; Maman, N.; Cyamweshi, A.; Dicko, M.; Garba, M.; Milner, M.; Senkoro, C.; Tarfa, B.; Tettah, F.; Kibunja, C.; Muntholi, M.; Nalivata, P.; Nkonde, D.; Nabahungu, L.; Quattara, K.; Serme, I. (2019)
      Crop production in sub-Saharan Africa has numerous biotic and abiotic constraints, including nutrient deficiencies. Information on crop response to macronutrients is relatively abundant compared with secondary and micronutrients (SMN). Data from 1339 trial replicates of 280 field trials conducted from 2013 to 2016 in 11 countries were analyzed for the diagnosis of SMN deficiencies. The diagnostic data included relative yield response (RYR) and soil and foliar test results. The RYR to application ...

    • Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize 

      Sangaré, S.; Menkir, A.; Ofori, K.; Gracen, V. (2018)
      Maize production is constrained by Striga hermonthica in Mali leading to high yield losses. Breeding resistant hybrid maize is a promising alternative for increasing farmers’ income. The objective of this study was to evaluate the response of test crosses to Striga hermonthica and identify high yielding and adopted hybrid. Forty-five F1 hybrids and three checks were evaluated under Striga-infested and Striga-free conditions in Sanankoroba and Sotuba rainy season. Data collection was carried on ...

    • Integrated livestock feed interventions 

      Lukuyu, B.; Marwa, L.; Rubanza, C.; Kimaro, A.; Mutungi, C. (Africa RISING, 2019)

    • Coffee and vanilla diversified systems in Uganda: exploring effective approaches for resilient coffee and vanilla farming systems 

      International Institute of Tropical Africa (International Institute of Tropical Agriculture, 2019)

    • Changes in chemical and microbiological quality of semi-processed black soldier fly (Hermetia illucens L.) larval meal during storage 

      Kamau, E.; Mutungi, C.; Kinyuru, J.; Imathiu, S.; Affognon, H.; Ekesi, S.; Nakimbugwe, D.; Fiaboe, K. (2020-04-17)
      Edible insects are receiving attention as a protein source in the food and feed sector. However, successful commercialisation requires mass production matched with appropriate processing and storage techniques. The quality of dried and pulverised black soldier fly larvae stored in woven polypropylene (PP) sacks, polyethylene (PE) bags and plastic containers with screw lid (PL) in ambient and refrigerated environments was monitored over six months. Chemical indicators (oxidation, fatty acid profile), ...

    • Africa RISING east and southern Africa project overview 

      Bekunda, M.A. (Africa RISING, 2019)

    • Climate smart stepwise investment pathway for cocoa farmers in Ghana 

      Dalaa, M.A.; Kofituo, R.K.; Asare, R. (2019)

    • Aflatoxin-producing fungi associated with pre-harvest maize contamination in Uganda 

      Sserumaga, J.P.; Ortega-Beltran, A.; Wagacha, J.M.; Mutegi, C.K.; Bandyopadhyay, R. (2020-01)
      Maize is an important staple crop for the majority of the population in Uganda. However, in tropical and subtropical climates, maize is frequently contaminated with aflatoxins, a group of cancer-causing and immuno-suppressive mycotoxins produced by Aspergillus section Flavi fungi. In Uganda, there is limited knowledge about the causal agents of aflatoxin contamination. The current study determined both the aflatoxin levels in pre-harvest maize across Uganda and the structures of communities of ...

    • Genetic diversity of Ethiopian cowpea [Vigna unguiculata (L) Walp] genotypes using multivariate analyses 

      Walle, T.; Mekbib, F.; Amsalu, B.; Gedil, M. (2019)
      Cowpea is a multipurpose pulse crop grown by poor farmers in marginal and drought prone areas of Ethiopia. Information on the extent of genetic variation in cowpea genotypes is crucial to identify diverse genotypes for crop improvement and for efficient utilization of the existing genetic resources. Therefore, the objectives of the study were to assess the extent and pattern of morphological diversity among cowpea genotypes and to identify the traits contributing to the genetic diversity using ...

    • Cocoa farmer's segmentation in Ghana 

      Dalaa, M.A.; Kofituo, R.K.; Asare, R. (2019)

    • Genetic improvement in resistance to Striga in tropical maize hybrids 

      Menkir, A.; Meseka, S. (2019-11)
      Striga hermonthica (Del.) Benth parasitizes maize (Zea mays L.) in sub‐Saharan Africa, causing yield losses of up to 100% under severe infestation. Hybrid maize breeding for polygenic resistance to Striga has been undertaken at the International Institute of Tropical Agriculture (IITA) since the 1980s. This study was conducted to estimate genetic gain in grain yield and associated traits in a set of 32 maize hybrids developed over three breeding periods under artificial Striga ‐infested and ...

    • Recipes for commonly consumed foods in Eswatini 

      Maziya-Dixon, B.; Mdziniso, P.; Jele, B.; Dlamini, N.; Nkwanyana, A.; Tsabedze, N.; Oguntona, T. (International Institute of Tropical Agriculture, 2019)

    • Eswatini food: composition table 

      Maziya-Dixon, B.; Mdziniso, P.; Jele, B.; Zwane-Mdaka, S.; Ndwandwe, B.; Simelane, G.; Tsabedze-Zwane, N.; Sibiya, T.E.; Oguntona, T. (Ministry of Agriculture, 2019)

    • Development and evaluation of Steamer for Attieke production: a cross cutting initiative of CGIAR Research Program for Roots, Tubers and Bananas 

      Sangodoyin, O.M.; Alamu, E.O.; Diallo, T.A.; Kolawole, P.; Abass, A.B.; Maziya-Dixon, B.; Parkes, E.; Awoyale, W.; Buraimoh, B.; Ben, J.; Tran, T.; Jekayinfa, S.O.; Olajide, J.O.; Kulakow, P.; Dixon, A.; Asiedu, R. (International Institute of Tropical Agriculture, 2019)

    • Potential of inoculant and phosphorus application on soybean production in Mozambique 

      Engoke, C.; Boahen, S. (2018-02)
      Inoculation with effective Bradyrhizobium spp., and phosphorus application enhance atmospheric nitrogen fixation in soybean production. Soybean form symbiotic associations with the right rhizobium strain to incorporate atmospheric nitrogen into the plant tissues. The objective of this study was to evaluate responses of two soybean varieties to inoculation, phosphorus and starter-nitrogen, and their interactions on nodulation, growth, yield components and grain yield in different agroecologies of ...

    • Genetic diversity of South African sweetpotato germplasm using molecular markers 

      Selaocoe, M.E.; Adebola, P.; Pillay, M.; Laurie, S.M. (2019)
      Sweetpotato (Ipomoea batatas L.(LAM)) is one of the most important food crops in developing countries, including South Africa. Most sweetpotato varieties in South Africa are cream or white fleshed and lack the essential beta-carotene of the orange-fleshed varieties. To develop new varieties with high beta-carotene, knowledge of the genetic variation of the crop is needed. The objectives of this study were to assess the genetic relationships among 30 orange- and cream-fleshed sweetpotato accessions ...

    • Making sense out of soil nutrient mining and depletion in sub-Saharan Africa. 

      Olupot, G.; Basamba, T.A.A.; Ebanyat, P.; Musinguzi, P.; Opolot, E.; Katusabe, A.A.; Bekunda, M.A.; Singh, B.R. (CRC Press, 2019)

    • Nutrient and antinutrient composition of winged bean (Psophocarpus tetragonolobus (L.) DC.) seeds and tubers 

      Adegboyega, T.T.; Abberton, M.T.; AbdelGadir, A.A.H.; Dianda, M.; Maziya-Dixon, B.; Oyatomi, O.A.; Ofodile, S.; Babalola, O.O. (2019)
      Many people in sub-Saharan Africa suffer from protein malnutrition; this results in negative health and economic impacts. Winged bean (Psophocarpus tetragonolobus (L.) DC.) is a tropical underutilized legume with beneficial nutritional characteristics such as high protein content, which may help to alleviate these problems. The proximate composition (fat, moisture content, crude protein, ash, and carbohydrate) and antinutrient (tannin and phytate) level of winged bean seeds and tubers were determined ...