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SWEETPOTATO VINES (PLANTING MATERIAL) AS A BUSINESS IN AFRICA: Commercializing seed systems in Uganda and Tanzania

In the many parts of Africa that have a long dry season, farmers complete the main harvest of sweetpotato roots by the early part of the dry season. This harvest and desiccation during the remaining part of the season destroy the foliage of these crops, so those that supply vines …
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SWEETPOTATO VINES (PLANTING MATERIAL) AS A BUSINESS IN AFRICA: Commercializing seed systems in Uganda and Tanzania

INTRODUCTION In the many parts of Africa that have a long dry season, farmers complete the main harvest of sweetpotato roots by the early part of the dry season. This harvest and desiccation during the remaining part of the season destroy the foliage of these crops, so those that supply …
  • Size: 2.8 MB
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  • Pages: 21

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PRESENTATION 1: EFFECT OF VINE HARVESTING ON ROOT AND VINE YIELD OF DIFFERENT SWEETPOTATO VARIETIES IN UGANDA

*Gerald Kyalo1, Elizabeth Akiror2, Julius Mwine2, Joseph Masereka2, Sam Namanda1, Robert O.M. Mwanga1, Peter Lule3, Ben Lukuyu3, Sarah Mayanja1 and Diego Naziri1 1International Potato Center (CIP), P.O. Box 22274, Kampala, Uganda: gerald.kyalo@cgiar.org, R.Mwanga@cgiar.org, S.Namanda@cgiar.org, S.mayanja@cgair.org, D.Naziri@cgiar.org. 2Uganda Martyrs University Nkozi, BOX 5498, Kampala, Uganda: elizabethakiror@gmail.com, mwinej@yahoo.com, 3International Livestock Research Institute …
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Presentation 07: VINE MULTIPLIER MAPPING: REVIEW AND UPDATES

During this presentation the following exercises were given to help participants gain better knowledge: Design ODK Vine multiplier Data collection tool Identify commercial vine multipliers Identify individual vine multipliers Pilot the ODK to locate the multipliers Pilot the ODK to collect important demographic and plot information
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Genotype 3 environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique

Sweetpotato is grown throughout the year in Mozambique but drought affects storage root yield and biomass productivity. The objectives of this research were to estimate the impact of genotype × environment interactions (G × E) in sweetpotato and select genotypes based on drought indices such as geometric mean, percent yield reduction, drought sensitivity index …
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Presentation 14: Value chain analysis for Orange-fleshed sweetpotato in Malawi

Sweetpotato remains a very important calorific and economic value chain commodity for the majority of Malawian farmers. While there have been efforts to improve productivity through the introduction of improved varieties, a big gap exists in knowledge of the value chain characteristics and linkages. Orange-fleshed Sweetpotato (OFSP) remains an obscure …
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SASHA Brief 2011: Exploiting sweetpotato as an animal feed in East Africa

East Africa has the highest per capita consumption of livestock products than any other sub-Saharan Africa region. High livestock population is pressurizing the competition for grains between use as food or as livestock feed. The problem is further compounded by a lack of quality feed year-round, with major shortages during …
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