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Tag Archives: vines

SPHI Brief 19: The DASHBOARD: Visual Monitoring of Progress Towards 10 Million Beneficiaries, Varieties Available, and Where to Get Vines

The Sweetpotato for Profit and Health Initiative (SPHI) has already reached over 4.5 million beneficiaries with improved sweetpotato varieties in 15 countries in Sub-Saharan Africa (SSA). The dashboard launched in 2018 presents an online and interactive status update, disaggregated by country. The dashboard also shows the progress made towards the …
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SASHA Brief 10: Cost-effectiveness of Different Irrigation Approaches for Producing Sweetpotato Vines in Net Tunnels Compared to Open Nurseries

This study was conducted under researcher-management to compare different irrigation approaches for producing sweetpotato planting material in low-cost net tunnels and open nurseries. Preliminary results show that producing vines using net tunnels with access to irrigation (drip and furrow) is more cost-effective than producing vines in open field nurseries with …
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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 …
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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 x 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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