Abstract

Biofortified, orange-fleshed sweetpotato (OFSP) varieties are being promoted as a part of a strategy to reduce Vitamin A Deficiency among rural and urban populations in Sub-Saharan Africa. This paper uses the commodity chain approach to understand whether markets may stimulate or not the production of the new orange sweetpotato varieties on Mozambique’s main consumer market, Maputo, its capital and largest city. It shows that the chain linking rural producers to the city’s consumers is operated by private actors; the government provides basic infrastructures and price information. International donors are involved through the dissemination of planting material and nutrition information in support the marketing of OFSP. The commodity chains of white and orange-fleshed varieties are entwined with no clear price differences. The annual marketed volume is estimated at 8,000 tonnes, mostly produced by smallholders and sold to consumers by sidewalk and open-air market retailers. This market segment is dominated by women. A small group of specialized - male and female - commercial OFSP producers supplies about 0.5% to 1% of this market selling directly to a specific group of clients who either buy at farm gate or through home delivery. The conclusion is that the existing commodity chain fails to stimulate the production of OFSP and the expansion of its benefits to wider sections of the population suggesting that the emphasis should be on having biofortified varieties that can compete successfully with the conventional ones at the farm-level.

Highlights

  • Vitamin A Deficiency (VAD) is a poverty-related micronutrient deficiency that still affects a significant percentage of the population in Africa

  • Biofortified, orange-fleshed sweetpotato (OFSP) varieties are being promoted as a part of a strategy to reduce Vitamin A Deficiency among rural and urban populations in Sub-Saharan Africa

  • This paper uses the commodity chain approach to understand whether markets may stimulate or not the production of the new orange sweetpotato varieties on Mozambique’s main consumer market, Maputo, its capital and largest city

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Summary

Introduction

Vitamin A Deficiency (VAD) is a poverty-related micronutrient deficiency that still affects a significant percentage of the population in Africa. To reduce VAD there are two main strategies: vitamin A supplementation through capsules or pills, or food-based approaches through dietary changes (Ruel, 2001) (Low et al, 2007). Food-based approaches are used in many low-income countries to tackle malnutrition traps (Demment, Youngy, & Sensenig, 2003). To tackle VAD, biofortification has been promoted by increasing the beta-carotene contents of staple crops such as cassava, maize, rice and sweetpotato. Orange-fleshed sweetpotato (OFSP) varieties are one of its most successful cases with conclusive evidence of nutritional effect (Ruel, Alderman, & The Maternal and Child Nutrition Study Group, 2013). In Mozambique, OFSP varieties have been promoted for over fifteen years, but only since 2011 locally bred varieties have been released that are adapted to local agro-ecologies and sensory preferences

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