Person: Kruseman, G.
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Kruseman
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Kruseman, G.
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0000-0002-3392-4176 6 results
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- Exploring opportunities around climate-smart breeding for future food and nutrition security(CGIAR Research Program on Climate Change Agriculture and Food Security (CCAFS), 2019) Balié, J.; Cramer, L.; Friedmann, M.; Gotor, E.; Jones, C.S.; Kozicka, M.; Kruseman, G.; Notenbaert, A.; Place, F.; Rebolledo, C.; Thornton, P.; Wiebe, K.Foresight activities that include participatory processes as well as careful analysis can help address the great uncertainties concerning the future of food systems and the role of crop and livestock breeding. There would be big benefits to designing and carrying out a process to develop and support a value proposition for future CGIAR breeding activities. More multi-disciplinary team approaches are needed to work on trait prioritization for CGIAR and partners, embedded within a systems approach. Participatory methods to characterize stakeholders’ needs and preferences are crucial to ensure that new varieties fulfil their expectations in highly dynamic market environments.
Publication - Changing food systems increase complexity of meeting SDGs(CIMMYT, 2018) Kruseman, G.
Publication - Foresight for Maize and Wheat(CIMMYT, 2018) Gbegbelegbe, S.D.; Kruseman, G.; Frija, A.
Publication - Threats of tar spot complex disease of maize in the United States of America and its global consequences(Springer Verlag, 2019) Mottaleb, K.A.; Loladze, A.; Sonder, K.; Kruseman, G.; San Vicente Garcia, F.M.The emergence and spread of new crop diseases threatens the global food security situation. Phyllachora maydis, one of the three fungal pathogens involved in Tar Spot Complex (TSC) of maize, a disease native to Latin American countries, was detected for the first time in the United States of America (USA) in 2015. Although TSC has been previously reported to cause up to 50% of yield losses in maize in Latin America, the impact of P. maydis alone on maize yield is not known yet. However, there is a possibility that Monographella maydis, the second most important pathogen involved in TSC, would be introduced to the USA and would become associated with P. maydis and both pathogens could form the devastating complex disease in the country. The first objective of this study was to identify the TSC-vulnerable maize-producing regions across the USA by applying a climate homologue modeling procedure. The second objective was to quantify the potential economic impact of the disease on the maize industry in the USA. This study showed that even a 1% loss in maize production caused by the disease could potentially lead to a reduction in maize production by 1.5 million metric tons of grain worth US$231.6 million. Such production losses will affect not only the maize-related industries in the USA but also the food security in a number of low-income countries that are heavily dependent on US maize imports. This, in turn, may lead to increased poverty and starvation and, in some cases, to social unrest due to increased prices of maize-based staple foods. The study is intended to raise public awareness regarding potential TSC outbreaks and to develop strategies and action plans for such scenarios.
Publication - Potential benefits of drought and heat tolerance for adapting maize to climate change in tropical environments(Elsevier, 2018) Tesfaye, K.; Kruseman, G.; Cairns, J.E.; Zaman-Allah, M.; Dagne Wegary Gissa; Zaidi, P.; Boote, K.; Rahut, D.B.; Erenstein, O.Climate change and population growth pose great challenges to the food security of the millions of people who grow maize in the already fragile agricultural systems in tropical environments. There is an urgent need for maize varieties that are both drought and heat tolerant given the already prevailing drought and heat stress levels in many tropical environments, which are set to exacerbate with climate change. In this study, the crop growth simulation model for maize (CERES-Maize) was used to quantify the impact of climate change on maize and the potential benefits of incorporating drought and heat tolerance into the commonly grown (benchmark) maize varieties at six sites in Eastern and Southern Africa and one site in South Asia. Simulation results indicate that climate change will have a negative impact on maize yield at all the sites studied but the degree of the impact varies with location, level of warming and rainfall changes. Combined hotter and drier climate change scenarios (involving increases in warming with a reduction in rainfall) resulted in greater average simulated maize yield reduction (21, 33 and 50% under 1, 2 and 4 °C warming, respectively) than hotter only climate change scenarios (11, 21 and 41%, respectively). Incorporating drought, heat and combined drought & heat tolerance into benchmark varieties increased simulated maize yield under both the baseline and future climates. The average simulated benefit from combined drought & heat tolerance was at least twice that of heat or drought tolerance and it increased with the increase in warming levels. The magnitude of the simulated benefits from drought tolerance, heat tolerance and combined drought & heat tolerance and potential acceptability of the varieties by farmers varied across sites and climate scenarios indicating the need for proper targeting of varieties where they fit best and benefit most. It is concluded that incorporating drought and heat tolerance into maize germplasm has the potential to offset predicted yield losses and sustain maize productivity under climate change in vulnerable sites.
Publication - Forecasting effects of weather extremes: El Nino’s influence maize yields in Mexico(CIMMYT, 2017) Kruseman, G.; Sonder, K.; Hernández Rodríguez, V.M.; Pérez-Elizalde, S.; Burgueño, J.
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