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CHALLENGE THEME PAPER 5: INTEGRATED CROP MANAGEMENT

Overall Challenge: Yields of sweetpotatoes are low in Africa and improved crop management will be critical to increases in productivity and yet there is virtually a research vacuum on integrated crop management (ICM) and most farmers have few incentives to intensify crop management. So the question is: how can quality …

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Challenge Theme Paper 4: Sweetpotato Value Chains

This paper is part of a series of theme papers compiled into an International Potato Center Social Science Working Paper entitled Unleashing the Potential of Sweetpotato in Sub-Saharan Africa: Current Challenges and Way Forward. They were prepared in preparation for a Sweetpotato Challenge Workshop held in July 2008 in Addis Ababa. …

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A Geo-Referenced Database of Global Sweetpotato Distribution

This document describes a geo-referenced database of the global distribution of sweetpotato. The database was assembled from many different national-level sources that varied in accuracy and detail. First, a map of relative within-country distribution was made for all countries with sweetpotato production. Administrative boundaries were used to delimit production zones, …

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Challenge Theme 1: Sweetpotato Breeding

This paper is part of a series of theme papers compiled into an International Potato Center social science working paper entitled Unleashing the Potential of Sweetpotato in Sub-Saharan Africa: Current Challenges and Way Forward. They were prepared in preparation for a workshop to assess challenges for sweetpotato in SSA. It addresses …

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The Use of OFSP to Combat Vitamin A Deficiency in Uganda

The HarvestPlus Initiative undertook a number of studies to document the situation of sweetpotato in Uganda with a focus on OFSP. These studies examined producer and consumer preferences, extension strategies and post harvest utilization. Surveys were conducted and data collected from all four of Uganda’s regions while considering intervention (communities …

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Principal Virus Diseases of Sweetpotato-Their Control and Eradication

This article by Moyer describes the principal virus diseases, control and eradication in sweetpotato. One major proposed solution to the problem of viruses in sweetpotato germplasm will include more research on etiology of these diseases. This can be effective and reliable for virus-indexing or detection procedure development.

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Complex Virus Diseases of Sweetpotato

Both components of the virus complex that cause the sweetpotato virus disease (SPVD) in Nigeria can individually be transmitted by their respective vectors from diseased sweetpotato to healthy sweetpotato and to test plant, Ipomoea setosa. But in Isolation, neither the aphid nor the whitefly-transmitted component, both latent in sweetpotato, can …

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Causes and control of virus diseases of sweetpotato in developing countries: is sweetpotato virus disease the main problem

This a progress report documenting the causes and control of virus diseases of sweetpotato in developing countries. Further, it reports on efforts sought to determine if sweetpotato virus disease is the main problem.

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Review of Sweetpotato Seed Systems in East and Southern Africa

This working paper highlights the challenges and opportunities for producing sweetpotato planting material in Eastern and Southern Africa, where there is a huge potential for the crop to contribute to food and income security. Dissemination of intensive methods of conserving planting material using domestic waste water is recommended as a …

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