Sweetpotato Knowledge Portal
The feasibility of using low cost net tunnels to produce disease-free sweetpotato planting material under farmer-multiplier management was assessed in Tanzania and Uganda. A total of 91 Decentralized Vine Multipliers (DVMs) were identified and supplied with 140 net tunnels. Over 3.6 million cuttings were produced over the three-year period. A …
Read More »SASHA Brief 2016: Keeping Disease-free Sweetpotato Vines closer to Farmers "Kinga Marando"
The feasibility of using low cost net tunnels to produce disease-free sweetpotato planting material under farmer-multiplier management was assessed in Tanzania and Uganda. A total of 91 Decentralized Vine Multipliers (DVMs) were identified and supplied with 140 net tunnels. Over 3.6 million cuttings were produced over the three-year period. A …
Read More »SPHI Brief 2013: Integrating Orange – for higher sweetpotato production in the Eastern province of Zambia
Sweetpotato is a critical food security crop in the Eastern province of Zambia. It supplements maize and cassava and serves as a stand-by when other staples fail due to drought or disease. This potential is compromised by lack of sufficient and timely access to disease free or ‘‘clean’’ planting material. …
Read More »SASHA Brief 2013: Sweetpotato seed systems: A question of quantity and quality
Sweetpotato is a vegetatively propagated crop with short cropping cycle. In most cases each of the cropping cycle is started with planting cutting material, other than breeders who use true seeds. Normally, crop propagated vegetatively accumulate diseases resulting to adverse effects on yields. Throughout Sub-Saharan Africa (SSA), most farmers source …
Read More »SASHA Brief 2011: Sweetpotato seed systems: A question of quantity and quality
Sweetpotato (SP) is a vegetatively propagated crop grown with short cropping cycle. Each cropping cycle starts by planting cuttings. Most crops propagated vegetatively include SP accumulate diseases, such as viruses, through each successive generation. This can lead to significant declines in yield. Throughout SSA, most farmers source their planting material …
Read More »SPHI Brief 2014: Assuring Planting Material through Triple “S” in northern Uganda
In Uganda seasonal food insecurity is a major challenge. Triple S technology has help farmers assure their own supply of planting material in drought prone areas using roots as the “seed” source. This brief, reports that to date, a total of 10 implementing partner extensionists and 247 farmers (126 women …
Read More »SASHA Brief 2014: Can Farmer Multipliers Successfully Manage Net Tunnels?
Challenges of limited ‘clean’ sweetpotato planting material lead to multiple short comings while managing SP farm. This brief presents a turnaround strategy for production of clean SP vines developed and tested in Rwanda. The main observation was that farmer groups with designated leaders charged to maintain vine conservation (net) tunnels near …
Read More »Improving farmers’ access to sweetpotato clean planting materials through partnerships in the value chain
Different surveys indicated sweetpotato production is encountering numerous constraints, among them the availability of clean planting materials of most varieties but more so of the new Vitamin A rich Orange Fleshed Sweetpotato. This is a brochure on improving farmers’ access to sweetpotato clean planting materials.
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