IITA Bibliography System: Recent submissions

Now showing items 401-420 of 7933

    • Farm production diversity, household dietary diversity, and nutrition: evidence from Uganda's national panel survey 

      Sekabira, H.; Nansubuga, Z.; Ddungu, S.P.; Nazziwa, L. (2022-12-16)
      Improved food security and nutrition remain a notable global challenge. Yet, food security and nutrition are areas of strategic importance regarding the United Nations’ Sustainable Development Goals. The increasingly weakening global food production systems pose a threat to sustainable improved food security and nutrition. Consequently, a significant population remains chronically hungry and severely malnourished. As a remedy, farm production diversity (FPD) remains a viable pathway through which ...

    • Assessing cassava breeding clones in two agroecologies in the Democratic Republic of Congo 

      Sikirou, M.; Mwangu, K.M.; Kayondo, S.I.; Agre, A.P.; Tata-Hangy, W.; Bakelana, T.; Adetoro, N.A. (2022-12)
      Breeding is the most economical approach for controlling production constraints in cassava (Manihot esculenta Crantz) smallholder farms. This study aims at assessing the performances of elite cassava clones in the province of Kwilu, Democratic Republic of Congo (DRC). Three sets of trials were established using an alpha lattice and a randomized complete block designs in two contrasting locations, upland savanna and valley forest agroecologies. Eleven traits were used in phenotyping the cassava ...

    • Farmers’ preferences for east African highland cooking banana ’Matooke’ hybrids and local cultivars 

      Madalla, N.; Swennen, R.; Brown, A.; Carpentier, S.C.; Van den Bergh, I.; Crichton, R.J.; Marimo, P.; Weltzien, E.; Massawe, C.; Shimwela, M.; Mbongo, D.; Kindimba, G.; Kubiriba, J.; Tumuhimbise, R.; Okurut, A.W.; Cavicchioli, M.; Ortiz, R. (2023-03-08)
      Background An understanding of farmers' preferences of new banana cultivars and their characteristics is critical for developing and selecting cultivars that meet consumer needs. Therefore, phenotypic selection in a genetically variable population remains an important aspect of plant breeding. Methods The participatory varietal selection approach for preference ranking was used on 31 'Matooke' secondary and primary triploid hybrids and local banana cultivars evaluated between 2016 and 2019 in ...

    • The use of mobile phones and the heterogeneity of banana farmers in Rwanda 

      Kabirigi, M.; Sekabira, H.; Sun, Z.; Hermans, F. (2022-03-29)
      Information and communications technologies (ICTs) play a key role in improving agricultural production, enhancing socio-ecological resilience, and mitigating rural poverty. However, the use of ICTs for agricultural development among smallholder farmers, especially in the least developed countries, still lags behind. It is therefore critical to understand distinct attitudes among heterogeneous smallholder farmers that determine use of ICTs, such as mobile phones. Moreover, data-driven empirical ...

    • Circular bioeconomy in African food systems: what is the status quo? Insights from Rwanda, DRC, and Ethiopia 

      Sekabira, H.; Nijman, E.; Spath, L.; Krutli, P.; Schut, M.; Vanlauwe, B.; Wilde, B.; Kintche, K.; Kantengwa, S.; Feyso, A.; Kigangu, B.; Six, J. (2022-10-20)
      Increasing global food insecurity amidst a growing population and diminishing production resources renders the currently dominant linear production model insufficient to combat such challenges. Hence, a circular bioeconomy (CBE) model that ensures more conservative use of resources has become essential. Specifically, a CBE model that focuses on recycling and reusing organic waste is essential to close nutrient loops and establish more resilient rural-urban nexus food systems. However, the CBE ...

    • Feed the Future: Nigeria Integrated Agriculture Activity - 20th edition 

      USAID; IITA (United States Agency for International Development, 2023-01)

    • Feed the Future: Nigeria Integrated Agriculture Activity - 19th edition 

      USAID; International Institute of Tropical Agriculture (United States Agency for International Development, 2022-12)

    • Feed the Future: Nigeria Integrated Agriculture Activity 

      USAID; International Institute of Tropical Agriculture ((NIAA) Newsletter, 2022-11)

    • Feed the Future: Nigeria Integrated Agriculture Activity - 17th edition 

      USAID; IITA (United States Agency for International Development, 2022-10)

    • Beyond average: are the yield and income impacts of adopting drought-tolerant maize varieties heterogeneous? 

      Kamara, A.Y.; Oyinbo, O.; Manda, J.; Kamara, A.; Idowu, E.O.; Mbavai, J.J. (2023-02-23)
      Assessing the benefits of adopting climate-resilient farming technologies without considering the heterogeneity among farmers, may not provide a sufficient evidence base for policy. Yet, most empirical studies do not go beyond documenting the average effects of climate-resilient technologies. Using farm household survey data from Nigeria, this paper examines whether and to what extent the yield and income impacts of adopting drought-tolerant maize varieties are heterogeneous. We used the ...

    • Assessing the conservation status of wild banana genetic resources by means of population genetics and distribution modelling 

      Mertens, A. (Katholieke Universiteit Leuven, 2023-01)
      Crop wild relatives (CWR) are wild plant species that are closely related or ancestral to cultivated plants. Because they often have high allelic diversity compared to their associated crop, they are an important source for the improvement of multiple agronomic traits such as yield or the resistance against biotic or abiotic stresses. Loss of genetic diversity due to increasing anthropogenic pressure now threatens their long term survival. There is a growing recognition of the importance of CWR ...

    • Establishing the linkage between Eba’s instrumental and sensory descriptive profiles and their correlation with consumer preferences: implications for cassava breeding 

      Alamu, E.O.; Teeken, B.; Ayetigbo, O.; Adesokan, M.; Kayondo, S.I.; Chijioke, U.; Madu, T.; Okoye, B.; Bello, A.A.; Njoku, D.; Rabbi, I.Y.; Egesi, C.; Ndjouenkeu, R.; Bouniol, A.; de Sousa, K.; Dufour, D.; Maziya-Dixon, B. (2023-02-22)
      Background Gari and Eba (cassava semolina) is mainly consumed in Nigeria and other West African countries. Defining the food product profile (biophysical, sensory, and textural qualities) that drives its acceptability, and integrating the component traits into breeding programs, are critical for the better adoption of new genotypes. This study aimed to define the Gari and Eba critical quality traits, define medium and high throughput instrumental methods for use by breeders, measure their respective ...

    • Assessment of structure and governance of amenity trees in the premises of International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria 

      Owoeye, Y.T. (University of Ibadan, 2021-10)
      Amenity trees are components of the urban forest which contribute significantly to human wellbeing and improves environmental quality. Benefits derivable from amenity trees are numerous but inadequate or lack of knowledge of the structure of the urban treescape as well as poor or no management practices like institutional framework has limited these benefits. A number of institutions has lot of trees planted within their premises. However, more often than not, those trees have become hazardous and ...

    • Effect of shade on ecophysiology of cocoa under stress conditions 

      Mensah, E.O. (University of Ghana, 2021-09)
      Climate models predict increasing air temperature and decreasing rainfall patterns among cocoa growing regions around the world. Both heat and drought stress are known to affect physiology of cocoa plants through reduced rates of photosynthesis, lack of water and generally impaired physiological processes. This in turn leads to decreased yields and in severe cases, increased risks of mortality. Many studies have reported positive effects of shade on cocoa production; however, interest of full sun ...

    • Effectiveness of the Yangambi biosphere reserve in reducing deforestation in the Democratic Republic of the Congo 

      Kipute, D.D.; Mate, J.P.; Kankeu, R.S.; Ngouhouo-Poufoun, J.; Kahindo, J.M.; Mampeta, S.; Lelo, U.; Sonwa, D.; Joiris, D.V.; Demaze, M.T. (2023-01)
      Establishing protected areas creates an opportunity to reduce deforestation. This study aims to inform the Congolese government’s efforts to promote forest and biodiversity conservation by assessing the effectiveness of the Yangambi Biosphere Reserve (YBR) in reducing deforestation. Group and individual interviews designed to understand the causes of pressure on forest cover in the Yangambi landscape complemented satellite imagery analyses. The results indicate that deforestation inside the YBR ...

    • Genetic diversity of virome and mycobiome of cassava in Bagamoyo, Tanzania and basis for treat discrepancy between cassava brown streak virus species 

      Mero, H.R. (University of Dar es Salaam, 2022-10)
      Brown streak is the most destructive viral disease of cassava causing up to 100% yield loss whilst fungal diseases contribute up to 90% cassava yield loss in Sub Saharan Africa. Genetic diversity of novel virus and fungal species infecting cassava in Bagamoyo, Tanzania is not fully comprehended. For unclear reasons, it is difficulty to breed resistance for one causal pathogen of cassava brown streak disease (CBSD), Cassava Brown Streak Virus (CBSV) compared to another, Ugandan Cassava Brown Streak ...

    • Motivational pathways for farmer learning behaviour in the student‐to‐farmer university outreach 

      Kalule, S.W.; Sseguya, H.; Karubanga, G.; Ongeng, D. (2023-02-23)
      In recent times, calls for practical training of agricultural extension workers, who exhibit the right mix of competences for responsiveness to farmer learning needs, have intensified. This comes at the time when there is an increasingly growing desire for more community‐engaged African universities, and as such, making the integration of agricultural students into community outreach services a necessity. However, empirical evidence on whether student‐led outreach and training models adequately ...

    • Factoring labour when comparing in situ rainwater harvesting technologies for semi-arid areas of central Tanzania 

      Swai, E.; Mwinuka, L.; Shitindi, M.J.; Manda, J.; Whitbread, A.; Bekunda, M. (2023-02-08)
      Erratic rainfall, high evapotranspiration rates and droughts are major factors limiting crop production in semi-arid areas. Tied ridges that have crossed ties within the furrow are among the physical soil and water conservation measures. During the 2018/19 and 2019/20 seasons, we examined the efficacy of repaired tied ridges for maize crop (Zea mays) and sorghum (Sorghum bicolor) in Kongwa district of Tanzania as an alternate labour saving strategy for managing climate risks associated with variable ...

    • Resistance screening of white yam (Dioscorea rotundata Poir.) accessions against Meloidogyne incognita (Kofoid & White, 1919) Chitwood, 1949 using yam vines 

      Adomako, J.; Otoo, E.; Danso, Y.; Alhassan, D.K.; Adebola, P.; Asfaw, A. (2022-04)
      Root-knot nematode (Meloidogyne incognita) is an economically important phytoparasitic nematode species. In yam production, therefore, breeding for nematode resistance is an important environmentally friendly tool to manage root-knot nematodes damage. The aim of this study was to determine the reaction of 18 yam accessions to M. incognita inoculation under screen house conditions using single node vine cuttings. Vines of each accession were planted in sterilized soil and inoculated with 1000 ...

    • Inheritance of resistance to Fusarium verticillioides ear rot in maize inbred lines of southern, west and central Africa origin 

      Tembo, E.; Minnaar‐Ontong, A.; Menkir, A.; Marais, G.; Magorokosho, C.; Labuschagne, M.T. (2022-10)
      Maize (Zea mays L.) is an important crop in sub-Sahara Africa for both human consumption and livestock feed. Maize use is often limited by ear-rotting fungi, some of which produce deleterious secondary metabolites. The aim of this study was to determine the inheritance of resistance to Fusarium verticillioides as an indirect way of selecting for resistance to secondary metabolites such as the mycotoxin fumonisin that is produced by this fungus, under artificial inoculation and natural infection. ...