Person: Sonder, K.
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Sonder
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K.
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Sonder, K.
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0000-0001-9672-5361 10 results
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- Production vulnerability to wheat blast disease under climate change(Nature Publishing Group, 2024) Pequeno, D.N.L.; Berton Ferreira, T.; Fernandes, J.M.C.; Singh, P.K.; Pavan, W.O.; Sonder, K.; Robertson, R.; Krupnik, T.J.; Erenstein, O.; Asseng, S.
Publication - Global maize production, consumption and trade : trends and R&D implications(Springer, 2022) Erenstein, O.; Jaleta, M.; Sonder, K.; Mottaleb, K.A.; Prasanna, B.M.
Publication - Chapter 4. Global trends in wheat production, consumption and trade(Springer Nature, 2022) Erenstein, O.; Jaleta, M.; Mottaleb, K.A.; Sonder, K.; Donovan, J.; Braun, H.J.
Publication - Farms worldwide: 2020 and 2030 outlook(SAGE Publications, 2021) Erenstein, O.; Chamberlin, J.; Sonder, K.
Publication - Estimating the global number and distribution of maize and wheat farms(Elsevier, 2021) Erenstein, O.; Chamberlin, J.; Sonder, K.
Publication - Impacts of drought-tolerant maize varieties on productivity, risk, and resource use: evidence from Uganda(Elsevier, 2019) Simtowe, F.P.; Amondo, E.; Marenya, P.P.; Rahut, D.B.; Sonder, K.; Erenstein, O.Weather variability is an important source of production risk for rainfed agriculture in developing countries. This paper evaluates the impacts of the adoption of drought-tolerant maize varieties on average maize yield, yield stability, risk exposure and resource use in rainfed smallholder maize farming. The study uses cross-sectional farm household-level data, collected from a sample of 840 farm households in Uganda. The adoption of drought-tolerant maize varieties increased yield by 15% and reduced the probability of crop failure by 30%. We further show that the adoption of these varieties increased investments in maize production at the extensive margin through maize area increase and to a more limited extent at the intensive margin through mechanization. The findings show promise for further uptake and scaling of drought-tolerant maize varieties for increased productivity, reduced risk, and the transformation of the maize sector.
Publication - Economic benefits of blast-resistant biofortified wheat in Bangladesh: the case of BARI Gom 33(Elsevier, 2019) Mottaleb, K.A.; Velu, G.; Singh, P.K.; Sonder, K.; Xinyao He; Singh, R.P.; Joshi, A.K.; Barma, N.C.D.; Kruseman, G.; Erenstein, O.The first occurrence of wheat blast in 2016 threatened Bangladesh's already precarious food security situation. The Bangladesh Agricultural Research Institute (BARI), together with the International Maize and Wheat Improvement Center (CIMMYT) developed and released the wheat variety BARI Gom 33 that is resistant to wheat blast and other common diseases. The new variety provides a 5–8% yield gain over the available popular varieties, as well as being zinc enriched. This study examines the potential economic benefits of BARI Gom 33 in Bangladesh. First, applying a climate analogue model, this study identified that more than 55% of the total wheat-growing area in Bangladesh (across 45 districts) is vulnerable to wheat blast. Second, applying an ex-ante impact assessment framework, this study shows that with an assumed cumulative adoption starting from 2019–20 and increasing to 30% by 2027–28, the potential economic benefits of the newly developed wheat variety far exceeds its dissemination cost by 2029–30. Even if dissemination of the new wheat variety is limited to only the ten currently blast-affected districts, the yearly average net benefits could amount to USD 0.23–1.6 million. Based on the findings, international funder agencies are urged to support the national system in scaling out the new wheat variety and wheat research in general to ensure overall food security in Bangladesh and South Asia.
Publication - Averting wheat blast by implementing a 'wheat holiday': in search of alternative crops in West Bengal, India(Public Library of Science, 2019) Mottaleb, K.A.; Singh, P.K.; Sonder, K.; Kruseman, G.; Erenstein, O.The emergence of wheat-blast in Bangladesh in the 2015–16 wheat (Triticum aestivum L.) crop threatens the food security of South Asia. A potential spread of the disease from Bangladesh to India could have devastating impacts on India’s overall food security as wheat is its second most important staple food crop. West Bengal state in eastern India shares a 2,217 km-long border with Bangladesh and has a similar agro-ecology, enhancing the prospects of the disease entering India via West Bengal. The present study explores the possibility of a ‘wheat holiday’ policy in the nine border districts of West Bengal. Under the policy, farmers in these districts would stop wheat cultivation for at least two years. The present scoping study assesses the potential economic feasibility of alternative crops to wheat. Of the ten crops considered, maize, gram (chickpea), urad (black gram), rapeseed and mustard, and potatoes are found to be potentially feasible alternative crops. Any crop substitution would need support to ease the transition including addressing the challenges related to the management of alternative crops, ensuring adequate crop combinations and value chain development. Still, as wheat is a major staple, there is some urgency to support further research on disease epidemiology and forecasting, as well as the development and dissemination of blast-resistant wheat varieties across South Asia.
Publication - Threat of wheat blast to South Asia’s food security: an ex-ante analysis(Public Library of Science, 2018) Mottaleb, K.A.; Singh, P.K.; Sonder, K.; Kruseman, G.; Tiwari, T.P.; Barma, N.C.D.; Malaker, P.K.; Braun, H.J.; Erenstein, O.New biotic stresses have emerged around the globe over the last decades threatening food safety and security. In 2016, scientists confirmed the presence of the devastating wheat-blast disease in Bangladesh, South Asia?its first occurrence outside South America. Severely blast-affected wheat fields had their grain yield wiped out. This poses a severe threat to food security in a densely-populated region with millions of poor inhabitants where wheat is a major staple crop and per capita wheat consumption has been increasing. As an ex ante impact assessment, this study examined potential wheat-blast scenarios in Bangladesh, India, and Pakistan. Based on the agro-climatic conditions in the epicenter, where the disease was first identified in Bangladesh in 2016, this study identified the correspondingly vulnerable areas in India, Pakistan and Bangladesh amounting to 7 million ha. Assuming a conservative scenario of 5?10% for blast-induced wheat production loss, this study estimated the annual potential wheat loss across the sampled countries to be 0.89?1.77 million tons, equivalent to USD 132?264 million. Such losses further threaten an already-precarious national food security, putting pressure on wheat imports and wheat prices. The study is a call for action to tackle the real wheat-blast threat in South Asia. © 2018 Mottaleb et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Publication - Impacts of International Wheat Improvement Research: 1994-2014(CIMMYT, 2016) Lantican, M.A.; Braun, H.J.; Payne, T.S.; Singh, R.G.; Sonder, K.; Baum, M.; Van Ginkel, M.; Erenstein, O.This study documents for 1994-2014 the global use of improved wheat germplasm and the economic benefits from international collaboration in wheat improvement research funded by CGIAR and involving national agricultural research systems, CGIAR organizations, and advanced research institutes. Conducted by the CGIAR Research Program on Wheat (WHEAT), this is the fourth in a series of global wheat impact assessments (Byerlee and Moya 1993; Heisey et al. 2002; Lantican et al. 2005) initiated by the International Maize and Wheat Improvement Center (CIMMYT). It updates data and earlier analyses from the most recent, previous study, covering 1988-2002 (Lantican et al. 2005).
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