Sweetpotato Knowledge Portal
In Côte d’Ivoire, the sweet potato is little cultivated but stays however a culture of pension and a food mattering in certain regions. This study was conducted to assess the effect of the application of mineral (NPK 15-15-15, NPK 12-22-22) and organic (poultry manure) fertilizers on yield components of sweet …
Read More »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 …
Read More »‘NASPOT 12 O’ and ‘NASPOT 13 O’ Sweetpotato
Two sweetpotato [Ipomoea batatas L. (Lam.)] cultivars, NASPOT 12 O (Namulonge sweetpotato 12 orange-fleshed) and NASPOT 13 O (Namulonge sweetpotato 13 orange-fleshed) were approved for release by the Ugandan Plant Variety Release Committee (UPVRC) in Nov. 2013 (Ssemakula et al., 2013). This brings to 22, the number of sweetpotato cultivars …
Read More »Effect of maize intercrop plant densities on yield and β-carotene contents of orange-fleshed sweetpotatoes
Despite efforts to demonstrate the value of orange-fleshed sweetpotato (OFSP) (Ipomoea batatas L.) and quality protein maize (Zea mays L.) in combating vitamin A and protein malnutrition, small land holdings by rural poor farmers still limit the crops’ overall production in Africa. As such, intercropping and optimum plant density in …
Read More »Variation in micronutrient content of orange-fleshed sweetpotato varieties grown in different environments
Field experiments were conducted at three locations in Zambia to characterize 15 sweetpotato varieties for tuber yield and micro-nutrient content. Location and variety had significant effect on tuber yield. Marketable yield ranged from 5.22 – 9.69 t/ha with variety Kakamega recording the least yield. AMMI analysis also indicated significant effects …
Read More »Adaptability and stability of sweetpotato varieties for low-input systems in Uganda
Sixteen of sweet potato varieties were evaluated for fresh storage roots yield in 20 trials during 2000-2001 for three seasons in four locations in Uganda.Of the 16 varieties, 11 were developed by farmers and five by central breeding programme. The behaviour of the varieties was quantified in terms of wide …
Read More »Exploiting the use of biotechnology in sweetpotato for improved nutrition and food security: Progress and future outlook
Sweetpotato (Ipomoea batatas) production is expanding faster than any other major food crop in sub-Saharan Africa (SSA), with about 13.4 million tons of roots from 3.2 million hectares in 2005. However, major constraints, including sweetpotato weevils (SPWs) and sweetpotato virus disease (SPVD) cause almost total crop loss on susceptible cultivars. …
Read More »ADAPTATION AND STABILITY ANALYSIS OF SWEETPOTATO VARIETIES FOR LOW-INPUT SYSTEMS IN UGANDA
Sixteen sweet potato varieties were evaluated for fresh storage root yield in 20 trials during 2000-2001 for three seasons in four locations in Uganda. Of the 16 varieties, 11 were developed by farmers and five by a central breeding programme. The behaviour of the varieties was quantified in terms of …
Read More »Weevil Resistant Sweetpotato through Biotechnology
African sweetpotato weevils (SPW), Cylas puncticollis and C. brunneus, pose a major threat to sweetpotato, which plays a vital role in food security and income generation for both the urban and rural poor in Sub-Saharan Africa (SSA). SPW can limit sweetpotato production causing total crop loss. Control methods such as integrated pest management …
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