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Exploring the yield gap of orange-fleshed sweetpotato varieties on smallholder farmers’ fields in Malawi

Orange-fleshed sweet potato (OFSP) can contribute to combating vitamin A deficiency and establishing more resilient cropping systems in sub-Saharan Africa. There is limited understanding of the factors that affect yield and quality of OFSP on smallholder farmers’ fields. This study aimed to assess the performance of six OFSP varieties, identify …

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A Study of Household Food security and Adoption of Biofortified Crop Varieties in Tanzania: The Case of Orange-Fleshed Sweetpotato

Food insecurity has become a key issue in the field of development in recent years with major inadequate intake of vitamin A-rich foods. Specifically, vitamin A deficiency (VAD) remains a major health problem among poor developing-country households, especially in Africa. Efforts to combat VAD currently focuses on food-based approach that …

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Effect of farmers’ multidimensional beliefs on adoption of biofortified crops: Evidence from sweetpotato farmers in Tanzania

We examined the effect of multidimensional farmers’ beliefs on the likelihood of cultivating planting materials of biofortified orange-fleshed sweetpotato (OFSP) varieties. Using a panel dataset and combining difference-in-differences regression with propensity score matching, results showed positive effects of beliefs related to health benefits, yielding ability, sweetness, disease-resistance, storability, early maturity, …

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Sweetpotato (Ipomoea batatas L.)

This chapter covers many aspects of sweetpotato improvement with emphasis on the developing world. It includes sections on the history of sweetpotato cultivation, general crop biology, the complex genetics and breeding challenges encountered by breeders seeking to improve the crop, crossing and breeding strategies for key traits, germplasm relations and …

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Does Information on Food Production Technology Affect Consumers’ Mental Models Relating to Biofortified Foods? Evidence from a Field Experiment in Kenya

This study used a field experiment and the means-end chain approach to examine the effect of providing information on the biofortification process on consumers’ acceptance of orange-fleshed sweetpotato (OFSP). Negative, positive, and neutral information about the biofortification were verbally provided. Images were used to reinforce the verbal information. Meaning representation …

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How promoting consumption of traditional African vegetables affects household nutrition security in Tanzania

Traditional African vegetables have recently received considerable attention for their contribution to food and nutrition security and opportunities for enhancing smallholder livelihoods. Promoting the production and consumption of traditional vegetables is expected to enhance household nutrition among urban and rural households. The Good Seed Initiative (GSI) program promoted production and …

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Gender-sensitive Value Chain Intervention Improved Profit Efficiency among Orange-fleshed Sweetpotato Producers in Rwanda

Smallholders in Eastern and Southern Africa(ESA) have limited access to timely availability of quality sweetpotato seed which contributes to sub-optimal root yields. To enhance availability and access to quality seed it is necessary to link formal plant breeding efforts to a sustainable seed supply system by means of identifying business …

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