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Roots and tubers for the 21st century: trends, projections and policy options

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  • Scott, Gregory J.
  • Rosegrant, Mark W.
  • Ringler, Claudia

Abstract

The major roots and tubers—cassava, potato, sweet potato, and yam—play a significant role in the global food system.They contribute to the energy and nutrition requirements of more than 2 billion people in developing countries and will continue to do so over the next two decades. They are produced and consumed by many of the world's poorest and most food-insecure house holds. Roots and tubers also constitute an important source of employment and in come in rural, and often marginal, areas, and for women. The authors look at current trends in use and production and at projections to the year 2020. Increased production and use of roots and tubers in developing countries have drawn attention to their potential benefits and risks, which this brief describes. The authors conclude with policy recommendations.

Suggested Citation

  • Scott, Gregory J. & Rosegrant, Mark W. & Ringler, Claudia, 2000. "Roots and tubers for the 21st century: trends, projections and policy options," 2020 vision briefs 66, International Food Policy Research Institute (IFPRI).
    • Handle: RePEc:fpr:2020br:66
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    References listed on IDEAS

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    1. Brush, Stephen B. & Taylor, J. Edward & Bellon, Mauricio R., 1992. "Technology adoption and biological diversity in Andean potato agriculture," Journal of Development Economics, Elsevier, vol. 39(2), pages 365-387, October.
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    Cited by:

    1. Chang, Hui-Shung (Christie) & Spriggs, John & Anjen, Jesse & Dowa, Eleo & Kewa, John & Hehona, Donald, 2016. "Improving sweetpotato marketing in Papua New Guinea: Results from a value chain analysis," Australasian Agribusiness Review, University of Melbourne, Department of Agriculture and Food Systems, vol. 24, April.
    2. Acheampong, Patricia Pinamang & Owusu, Victor & Nurah, Gyiele K., 2013. "Farmers Preferences for Cassava Variety Traits: Empirical Evidence from Ghana," 2013 Fourth International Conference, September 22-25, 2013, Hammamet, Tunisia 161633, African Association of Agricultural Economists (AAAE).
    3. David Pimentel, 2009. "Energy Inputs in Food Crop Production in Developing and Developed Nations," Energies, MDPI, vol. 2(1), pages 1-24, January.
    4. Scott, Gregory J. & Rosegrant, Mark W. & Ringler, Claudia, 2000. "Global projections for root and tuber crops to the year 2020," Food Policy, Elsevier, vol. 25(5), pages 561-597, October.
    5. Harrynanan, Lisa & Jacque, Andrew & Theophile, Brent, 2015. "Advancing the Root Crop Industry in the English Speaking Caribbean," 30th West Indies Agricultural Economics Conference, June 30-July 6, 2013, Port‐ of‐Spain, Trinidad, West Indies 242083, Caribbean Agro-Economic Society.
    6. Nwabueze Peter Okolie & Memunat N Brai & Oluwaseun M. Atotebi, 2012. "Comparative Study On Some Selected Garri Samples Sold In Lagos Metropolis," Journal of Food Studies, Macrothink Institute, vol. 1(1), pages 33-46, December.
    7. Kadaja, Jüri & Saue, Triin, 2016. "Potential effects of different irrigation and drainage regimes on yield and water productivity of two potato varieties under Estonian temperate climate," Agricultural Water Management, Elsevier, vol. 165(C), pages 61-71.
    8. Agerie Nega Wassihun & Tigabu Dagnew Koye & Abebe Dagnew Koye, 2019. "Analysis of technical efficiency of potato (Solanum tuberosum L.) production in Chilga District, Amhara National Regional State, Ethiopia," Journal of Economic Structures, Springer;Pan-Pacific Association of Input-Output Studies (PAPAIOS), vol. 8(1), pages 1-18, December.
    9. Sanzidur Rahman & Basanta Kumar Barmon, 2018. "Total Factor Energy Productivity and Efficiency Changes of the Gher (Prawn-Carp-Rice) Farming System in Bangladesh: A Stochastic Input Distance Function Approach," Energies, MDPI, vol. 11(12), pages 1-17, December.
    10. B.C. Okoye & A. Abass & B. Bachwenkizi & G. Asumugha & B. Alenkhe & R. Ranaivoson & R. Randrianarivelo & N. Rabemanantsoa & I. Ralimanana, 2016. "Effect of transaction costs on market participation among smallholder cassava farmers in Central Madagascar," Cogent Economics & Finance, Taylor & Francis Journals, vol. 4(1), pages 1143597-114, December.
    11. Robinson, Sherman & Mason d'Croz, Daniel & Islam, Shahnila & Cenacchi, Nicola & Creamer, Bernardo & Gueneau, Arthur & Hareau, Guy & Kleinwechter, Ulrich & Mottaleb, Khondoker & Nedumaran, Swamikannu &, 2015. "Climate change adaptation in agriculture: Ex ante analysis of promising and alternative crop technologies using DSSAT and IMPACT:," IFPRI discussion papers 1469, International Food Policy Research Institute (IFPRI).
    12. Forson, Joseph Ato & Baah-Ennumh, Theresa Yaaba & Mensah, Sampson Obed, 2014. "Women’s Contribution to Local Economic Development: A Study of Women in Cassava Production and Processing in Central Tongu District of Ghana," MPRA Paper 102430, University Library of Munich, Germany, revised 08 Mar 2016.
    13. Chang, Hui-Shung (Christie), 2014. "Future Prospects for Sweetpotato Processing in Papua New Guinea," Papers 234410, University of Melbourne, Melbourne School of Land and Environment.
    14. Kleinwechter, Ulrich, 2012. "Global impacts of targeted interventions in food security crops – the case of potatoes in developing countries," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 125735, International Association of Agricultural Economists.
    15. Pingali, Prabhu, 2007. "Westernization of Asian diets and the transformation of food systems: Implications for research and policy," Food Policy, Elsevier, vol. 32(3), pages 281-298, June.
    16. Nweke, Felix, 2004. "New challenges in the cassava transformation in Nigeria and Ghana:," EPTD discussion papers 118, International Food Policy Research Institute (IFPRI).
    17. Balié, Jean & Magrini, Emiliano & Morales Opazo, Cristian, 2016. "Cereal price shocks and volatility in Sub-Saharan Africa: What does really matter for farmers' welfare?," DARE Discussion Papers 1607, Georg-August University of Göttingen, Department of Agricultural Economics and Rural Development (DARE).
    18. Pingali, Prabhu, 2004. "Westernization of Asian diets and the transformation of food systems: Implications for research and policy," ESA Working Papers 23795, Food and Agriculture Organization of the United Nations, Agricultural Development Economics Division (ESA).
    19. Nyairo, Risper & Onwonga, Richard & Cherogony, Kipruto & Luedeling, Eike, 2014. "Applicability of Climate Analogues for Climate Change Adaptation Planning in Bugabira Commune of Burundi," Sustainable Agriculture Research, Canadian Center of Science and Education, vol. 3(4).
    20. Ohajianya, D.O. & Ugochukwu, Albert I., 2011. "An Ordered Probit Model Analysis of Transaction costs and Market Participation by Sweet Potato Farmers in South Eastern Nigeria," 85th Annual Conference, April 18-20, 2011, Warwick University, Coventry, UK 108936, Agricultural Economics Society.
    21. Chesney, H. Arlington & Titus, Pathleen, 2012. "Repositioning Traditional Staples (Roots And Tubers) In The Food Basket Of The Caribbean: A Case Study For Cardi," 48th Annual Meeting, May 20-26th, 2012, Playa del Carmen, Mexico 253587, Caribbean Food Crops Society.
    22. Gregory J. Scott & Athanasios Petsakos & Henry Juarez, 2019. "Climate change, food security, and future scenarios for potato production in India to 2030," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 11(1), pages 43-56, February.

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