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Exploring the yield gap of orange-fleshed sweet potato 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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Exploitation of genetic potential of sweetpotato for end-user traits improvement

Sweetpotato (Ipomoea batatas Lam) is a staple food globally, but it has remained underutilised resource in Ghana due to lack of consumer preferred cultivars. There is the need to develop staple-type sweetpotato cultivars which are preferred by consumers to increase sweetpotato use as a food security, health and industrial crop …

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Presentation 6C – Handout: Can Agricultural Technology Diffusion be Harnessed to Reduce Malnutrition? Experimental Evidence from Uganda

This study uses a randomized saturation experiment and influential technology promoters to test strategies to promote diffusion of two highly nutritious agricultural crop technologies in Uganda to measure which approaches are most cost-effective at achieving high adoption rates. The crops are conventionally bred varieties of vitamin-A-rich orange sweet potato (OSP) …

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Structure of sweet potato (Ipomoea batatas) diversity in West Africa covaries with a climatic gradient

Sub-Saharan agriculture has been identified as vulnerable to ongoing climate change. Adaptation of agriculture has been suggested as a way to maintain productivity. Better knowledge of intra-specific diversity of varieties is prerequisites for the successful management of such adaptation. Among crops, root and tubers play important roles in food security …

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Sweetpotato Agronomy Research in Ethiopia: Summary of Past Findings and Future Research Directions

Sweet potato (Ipomoea batatas (L.) Lam) is economically important food crop in Ethiopia. Since its introduction, numerous agronomic research activities were carried out in agricultural research centers, non-governmental organizations and universities. The objective of this piece of work is to document available research findings in a usable manner and present …

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Participatory selection of orange-fleshed sweetpotato varieties in north and north-east Côte d’Ivoire

Sweetpotato is cultivated in all the regions of Côte d’Ivoire for consumption and as a source of income. Only varieties with white or yellow flesh are grown. Production of nutritious orange-fleshed sweetpotato (OFSP) is hampered by the lack of genetic resources and planting material. To evaluate and release OFSP varieties, …

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From lab to life: Making storable orange-fleshed sweetpotato purée a commercial reality

Research in Rwanda demonstrated that orange-fleshed sweetpotato (OFSP) purée (steamed, mashed roots) was an economically viable, vitamin A enhancing ingredient in baked products when the purée was produced and used in the same bakery. Having a storable, packaged OFSP purée produced by a firm to supply bakers is an alternative …

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Survival of sweetpotato (Ipomoea batatas [L] Lam) vines in cultivars subjected to long dry spells after the growing season in Mozambique

Optimisation of sweetpotato production potential is not realized in sub-Saharan Africa where dry spells are common after the growing season. Lack of seed cultivars at the beginning of the rainy season is the challenge and identifying those cultivars with the ability to survive a 4 to 7-month dry spell is …

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The ability to improve productivity and agronomic traits of sweetpotato through breeding programs depends on assessing the genetic variation of their germplasm and genetic relationship to other genotypes. In addition, studying genetic diversity supports the conservation of genetic resources. In this study, three different DNA-based markers, random amplification of polymorphic …

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