IITA Bibliography System: Recent submissions

Now showing items 441-460 of 7933

    • Perspective d'avenir des jeunes impliques dans l'agribusiness au sud-Kivu: etude reposant sur l'experience des jeunes entrepreneurs ruraux du sud-Kivu 

      Dady, C.M.; Assani, J.N.; Dontsop-Nguezet, P. (ECA-CREAC, 2022)

    • Evaluation of mycotoxins and microbiological levels in cassava products consumed in Zambia 

      Tembo, M.; Alamu, E.O.; Bwembya, A.P.; Kasase, C.; Likulunga, E.L.; Chikoye, D. (TropAg International Agriculture, 2022-10-31)

    • Measuring what the world eats: Insights from a new approach 

      Beal, T.; Herforth, A.; Kennedy, G.; Manners, R.; Adewopo, J.; Manguene, C.; Nhambire, R. (2022-10)

    • Identification of a major QTL-controlling resistance to the subtropical race 4 of Fusarium oxysporum f. sp. cubense in Musa acuminata ssp. malaccensis 

      Chen, A.; Sun, J.; Martin, G.; Gray, L.A.; Hřibová, E.; Christelova, P.; Yahiaoui, N.; Rounsley, S.; Lyons, R.; Batley, J.; Chen, N.; Hamill, S.; Rai, K.; Coin, L.; Uwimana, B.; D’hont, A.; Doležel, J.; Edwards, D.; Swennen, R.; Aitken, E.A.B. (2023-02-09)
      Vascular wilt caused by the ascomycete fungal pathogen Fusarium oxysporum f. sp. cubense (Foc) is a major constraint of banana production around the world. The virulent race, namely Tropical Race 4, can infect all Cavendish-type banana plants and is now widespread across the globe, causing devastating losses to global banana production. In this study, we characterized Foc Subtropical Race 4 (STR4) resistance in a wild banana relative which, through estimated genome size and ancestry analysis, was ...

    • Variability and genetic merits of white Guinea yam landraces in Nigeria 

      Agre, A.P.; Edemodu, A.; Obidiegwu, J.; Adebola, P.O.; Asiedu, R.; Asfaw, A. (2023-02-06)
      Introduction: Landraces represent a significant gene pool of African cultivated white Guinea yam diversity. They could, therefore, serve as a potential donor of important traits such as resilience to stresses as well as food quality attributes that may be useful in modern yam breeding. This study assessed the pattern of genetic variability, quantitative trait loci (QTLs), alleles, and genetic merits of landraces, which could be exploited in breeding for more sustainable yam production in Africa. ...

    • Banana bunchy top virus threat to African bananas 

      Kumar, P.L. (Food and Agriculture Organization of the United Nations, 2022-09-07)
      The banana bunchy top virus (BBTV) is threatening livelihoods and banana biodiversity in sub-Saharan Africa. Since the first report in the 1960s, the virus has spread to 17 countries, eight of those in the last decade, including a recent spread in Uganda and Tanzania. In the "2022 International Plant Protection Convention Regional Workshop for Africa," organized by the FAO-IPPC, the African Union-Inter-African Phytosanitary Council (AU-IAPSC), the Plant Protection Organization of Kenya (KEPHIS), ...

    • Bias correction of daily chirps-V2 rainfall estimates in Ghana 

      Johnson, R. (Kwame Nkrumah University of Science and Technology, 2022-10)
      A wide range of economic sectors in the Ghana, including agriculture, health care, and energy, heavily rely on climate data; as a result, having access to reliable climate data is crucial for research and economic growth yet rainfall gauge data in Ghana scarcely available, therefore, researchers tend to depend on satellite estimates for hydrological studies and impact assessments. However, biases in satellite rainfall estimates and the ability for these rainfall products to effectively capture ...

    • Une operation de lutte biologique en Guyane 

      Vayssieres, J.; Cherasse, S.; Page, N.; Laplace, D.; Beauchene, J.; Gourmel, C.; Denis, S.; Pinault, D.; Rhino, B.; Bertrand, M.; Germain, J.; Goergen, G.; Le Bellec, F. (2022-09)
      Contexte - En septembre 2014, l’espèce invasive, Rastrococcus invadens Williams (Hemiptera : Pseudococcidae) a été détectée à Cayenne (Guyane), puis rapidement identifiée par le LSV-Anses. C’est le premier signalement de la cochenille sur le continent sud-américain. À la demande du ministère de l’Agriculture, une mission a été réalisée par le Centre de coopération internationale en recherche agronomique pour le développement (Cirad) fin 2016 afin de définir la gamme des plantes-hôtes de R. invadens, ...

    • Breeding for abiotic stress resistance in yam (Dioscorea Spp.) using biotechnology approaches: present practices and prospects 

      Agre, A.P.; Mondo, J.; Edemodu, A.; Matsumoto, R.; Asiedu, R.; Akoroda, M.O.; Bhattacharjee, R.; Gedil, M.; Adebola, P.O.; Asfaw, A. (Springer, 2022-11-01)
      Yam (Dioscorea spp.) is an important crop providing food, income and medicine in tropics and subtropics. Major yam species in West Africa such as D. alata and D. rotundata are subject to several biotic and abiotic stresses throughout the cropping cycle and post-harvest periods, resulting in substantial tuber yield and quality trait losses. Abiotic stresses (heat, drought, low soil fertility, salinity, waterlogging, etc.) are currently exacerbated by the climate change effects. Yet, limited efforts ...

    • Impact and adoption of drought tolerant maize varieties and interrelated agricultural technologies on rural households productivity and welfare 

      Oyetunde-Usman, Z. (University of Greeenwich, 2021)
      Over the years, climatic variations have persistently induced technological interventions in developing countries and were strategic in varietal development and modification of agronomical practices in developing countries. In addition, there are overwhelming records of impact on productivity and welfare of rural farm households. Despite these efforts, low adoption continues to be a huge problem and a clog to meeting sustainable agricultural development goals. This research contributes to the large ...

    • Adoption et perception des producteurs Nigeriens face aux changements climatiques et l'utilisation des varietes ameliorees 

      Issoufou, M.H. (Institut de Strategie D'evaluation et de Prospective, 2021)
      L’agriculture Nigérienne fait face à une faible production agricole car étant une agriculture pluviale à faible rendement, et l’élevage, un élevage extensif tributaire des ressources naturelles. IL est de plus en plus admis que le réchauffement planétaire actuel ne peut être évité (IPCC, 2007). Le recours à l’adoption des technologies agricoles améliorées s’est avéré indispensable pour une augmentation de la production agricole dans le but d’améliorer le bien-être des producteurs. Ainsi, dans notre ...

    • Direct planting versus transplanting of yam leaf-bud cuttings for seed production 

      Aighewi, B.; Maroya, N.; Aihebhoria, D.; Balogun, M.; Mignouna, D.; Asiedu, R. (IInternational Institute of Tropical Agriculture, 2022-11)

    • Mapping quantitative trait loci and predicting candidate genes for Striga resistance in maize using resistance donor line derived from Zea diploperennis 

      Badu-Apraku, B.; Adewale, S.; Agre, P.; Offornedo, Q.; Gedil, M. (2023-01-12)
      The parasitic weed, Striga is a major biological constraint to cereal production in sub-Saharan Africa (SSA) and threatens food and nutrition security. Two hundred and twenty-three (223) F2:3 mapping population involving individuals derived from TZdEI 352 x TZEI 916 were phenotyped for four Striga-adaptive traits and genotyped using the Diversity Arrays Technology (DArT) to determine the genomic regions responsible for Striga resistance in maize. After removing distorted SNP markers, a genetic ...

    • Influence of soil moisture stress on vegetative growth and root yield of some cassava genotypes for better selection strategy in screen house conditions and different agro-ecologies in Nigeria 

      Adetoro, N.A.; Mouritala, S. (IntechOpen, 2022-07-05)
      Cassava is a vital staple crop for many African populations particularly in Nigeria. This study was conducted to determine the effect of soil moisture on the performance of selected 12 cassava genotypes that were evaluated for yield and related traits under three percentages of field capacity (75% – control, 50%, and 25%) in the screen house and field conditions in three agro-ecologies (Ibadan-Derived Savanna, Mokwa-Southern Guinea Savanna, and Zaria-Northern Guinea Savanna) and randomized complete ...

    • Assessment of biochemical, cooking, sensory and textural properties of the boiled food product of white yam (D. rotundata) genotypes grown at different locations 

      Alamu, E.O.; Adesokan, M.; Awoyale, W.; Oyedele, H.A.; Fawole, S.; Amele, A.; Maziya-Dixon, B. (2022-12)
      Specific biochemical properties and textural attributes determine the final quality and acceptability of yam food products. This study assessed the flour and cooking qualities (boiled yam) of sixteen elite white yam genotypes (D. rotundata) grown in three locations. Fresh yam samples were cut into regular-shaped pieces and boiled using the standard procedure. Sub-samples were oven-dried at 65 °C for 72 h and milled to flour. The biochemical profiling for the yam flour showed, on average, 61.35 ± ...

    • Quantifying potential yield and yield gaps of soybean using CROPGRO-soybean model in the humid tropics of southwestern Ethiopia 

      Mekonnen, A.; Getnet, M.; Nebiyu, A.; Abebe, A.T. (2022-10-24)
      In the past, much of the emphasis on soybean research in Ethiopia has been on the development and testing of new varieties and classical agronomic trials with limited use of crop models that help in estimating the potential yield and yield gaps, and identifying the most important barriers of achieving optimal yield. CROPGRO-soybean model is an important tool for estimating the potential yield and yield gaps of soybean under various management and environmental conditions. The objectives of this ...

    • Species richness, density, activity, and composition of ground-dwelling ants in the humid forest zone of southern Cameroon: role of vegetation cover and abiotic factors 

      Fotso Kuate, A.; Hanna, R.; Nanga, S.N.; Tindo, M.; Doumtsop Fotio, A.R.P.; Nagel, P. (2022-12)
      The destruction of natural habitats is among the major factors responsible for the decrease in species diversity and distribution. This study focused on the effect of vegetation and its interaction with the season on ant species richness, density, activity, and composition in the three dominant habitats – forest, fallow, and mixed crop field – prevailing in southern Cameroon. Ants were sampled using two sampling techniques –pitfall trap and quadrat – in fallows, forest, and mixed crop fields from ...

    • Reliability of pheromone trap catches and maize plant damage as criteria for timing fall armyworm control interventions in humid forest agroecology of central Africa 

      Abang, A.; Nanga, S.N.; Ndanda, R.M.O.; Doumtsop Fotio, A.R.P.; Gonder, M.K.; Kouebou, C.; Suh, C.; Fotso Kuate, A.; Fiaboe, K.; Hanna, R. (2022)
      Control of fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) since its invasion of Africa still depends on pesticides. Early detection of adults is considered the key to the success of larvae control in the crop field. However, FAW control thresholds based on current monitoring techniques are not well established in Africa. We investigated the efficacy of moth capture frequencies and FAW incidence levels as decision tools for FAW management. Experiments were conducted ...

    • Status of urban ecology in Africa: a systematic review 

      Awoyemi, A.G.; Ibáñez-Álamo, J.D. (2023-05)
      Urbanization is an extreme human activity and is expanding worldwide, consequently increasing the attention of scientists across research areas of urban ecology. Recent studies have warned of the lack of information from certain regions, particularly Africa, which is rapidly urbanizing. Thus, we did a detailed literature search to determine the state of knowledge in African urban ecology in the last century. We found 795 relevant papers from where data were collected and tested to understand ...

    • Biotechnology approaches in breeding for biotic stress resistance in yam (Dioscorea spp.) 

      Agre, A.P.; Mondo, J.; Edemodu, A.; Matsumoto, R.; Kolade, O.; Kumar, P.L.; Asiedu, R.; Akoroda, M.O.; Bhattacharjee, R.; Gedil, M.; Adebola, P.O.; Asfaw, A. (Springer, 2022)
      Yam (Dioscorea spp.) is a major staple and cash crop in tropical and subtropical regions. However, biotic (fungus, viruses, tuber rots, nematodes, insects, etc.) and abiotic stresses (drought, low soil fertility, etc.) substantially impact the productivity and quality of yam crop in regions where it is majorly cultivated. Developing and deploying resilient cultivars is a cost-effective and environmentally sound approach to enhance productivity in stressful environments. Breeding initiatives in yam ...