Unleashing the potential of sweetpotato in Sub-Saharan Africa Current challenges and way forward

Andrade, M.I.; Barker, Ian K.; Cole, Donald C.; Fuentes, Segundo; Grüneberg, Wolfgang J.; Kapinga, R.; Kroschel, J.; Labarta, Ricardo; Lemaga, B.; Loechl, Cornelia; Low, Jan; Ortiz, Oscar; Oswald, Andreas; Thiele, Graham; Elliot, H.; Lynam, John K.; Mwanga, R.O.M.

doi:10.4160/0256874820091

Cited by 65 publications

(89 citation statements)

References 44 publications

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“…This suggestion might be supported by Frankin [32] who reported that total sugar concentration is genetically controlled trait in sweet potato. Andrade [36] reported that the concentration of total sugar of five sub Saharan Africa sweet potato collection was laid between 1.7 mg 100 g -1 to 27 mg 100 -1 which this result was strongly agree with the present result. According to Onwueme [37] the range of recommended total sugar concentration was between 6.98 to 14.59 g 100 g -1 and this result strongly agree with the present finding.…”

Section: Percentage (%)supporting

confidence: 83%

Agronomic and Physicochemical Evaluation of Sweet Potato [Ipomoea batatas (L.) Lam.] Collections in Ethiopia

Mohammed¹

2015

Adv Crop Sci Tech

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The productivity of sweet potato [Ipomoea batatas (L.) Lam.] is mainly dependant on the acquisition accessions which posses desirable traits and development of high yielding varieties with desired quality attributes. For this purpose, Haramaya University collected 116 sweet potato accessions from International and National sources to develop varieties for eastern Ethiopia; however, the accessions characterization and documentation were not exhaustively done to support the improvement program. Therefore, this study was conducted during 2012/2013 cropping season to characterize, evaluate, and documenting of agronomic and physicochemical attributes of sweet potato accessions at Haramaya. Augmented design consisting of 114 entries/tests and two checks were used. Varied number of accessions recorded significantly higher values than the mean of the checks for days to physiological maturity, above ground fresh biomass, storage root fresh weight, total storage root yield, marketable storage root yield, reducing sugar, total sugar, and total starch content, pH, dry matter content, total soluble solid, specific gravity and peel content. Tis-9465-7 had the highest storage root fresh weight yield; marketable storage root yield and total storage root yield and Koka-12 and CN-2069-7 exhibited significantly highest values than mean of the checks for days to physiological maturity and above ground fresh biomass, respectively. CN-1752-14, CN-2056 and Tis-80/043-1 for reducing sugar, pH and total soluble solid, respectively, exhibited significantly highest values, while CN-1752-15 recorded the highest total sugar and total starch content. Korojo had significantly highest values for specific gravity, dry matter. Tis-82/0602 were exhibited that the lowest in peel content. Elliptic shape (27.19%) and horizontal constriction (45.62%) defect were dominant in the accessions. Most of the accession had white skin color (22.6%) while 21.92% accessions had creamy flesh color.

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Section: Percentage (%)supporting

confidence: 83%

Agronomic and Physicochemical Evaluation of Sweet Potato [Ipomoea batatas (L.) Lam.] Collections in Ethiopia

Mohammed¹

2015

Adv Crop Sci Tech

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“…Vine material needs to be ready to go and mechanisms in place to distribute vine materials to needy farmers. (Andrade et al,2009).…”

Section: Introductionmentioning

confidence: 99%

“…(Adewumi, et al, 2008) Sweet potatoes are extremely adaptable to adverse environmental conditions; they can help increase food security in times of drought and famine, particularly in post-conflict areas for displaced persons. (Andrade et al, 2009). Sweet potatoes produce carbohydrates much faster and require less labor than other crops.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Sweet Potato Farmers in Nigeria: Potentials for Food Security and Poverty Alleviation

Ahmad¹,

Makama²,

Kiresur³

et al. 2014

IOSRJAVS

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“…Sweetpotato provides household food security and is an important source of energy due to its ability to grow throughout the year in some areas of the sub-Saharan Africa, where it ranks among the most widely grown root crops (Andrade et al 2009). Mozambique grew about 122,000 ha of sweetpotato with a harvest of 890,000 t of storage roots (FAO 2015).…”

Section: Introductionmentioning

confidence: 99%

Genotype × environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique

et al. 2016

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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 9 environment interactions (G 9 E) in sweetpotato and select genotypes based on drought indices such as geometric mean, percent yield reduction, drought sensitivity index and harvest index. A total of 58 clones were evaluated during the dry season of 2006, 2008 and 2009. Two treatments were applied for this multi-year trial: full irrigation and without irrigation at the middle of root initiation growth stage. The field layout was a randomized complete block design with three replications. 'Jonathan', 'Resisto' and 'Tanzania' were the check cultivars in each treatment. Storage root and vine yields were recorded at harvest in the trials. Harvest index was computed from the yield data. The analysis of variance, regression and the additive main effects multiplicative interaction (AMMI) analyses, plus phenotypic coefficient of variation and ecovalence were used for dissecting the G 9 E and assessing the stability of each clone. Treatment, genotype 9 treatment and genotype 9 year (G 9 Y) interactions had highest contributions to the variation in storage root yield observed among clones. The stability of harvest index was significantly correlated with the absolute AMMI's IPCA1 and IPCA2 values for storage root yield. Cultivar performance varied within treatments. Four clones had significantly higher storage root yield (t ha -1 ) than 'Tanzania', the best check cultivar under drought. In conclusion, storage root yield (t ha -1 ) was negatively affected by drought and G 9 Y interaction. Harvest index stability and the geometric mean may be key to identify clones with storage root yield stability and high storage root yield under both treatments. At least two environments should be used at early breeding stages to consider harvest index in the early breeding cycle.

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Unleashing the potential of sweetpotato in Sub-Saharan Africa Current challenges and way forward

Cited by 65 publications

References 44 publications

Agronomic and Physicochemical Evaluation of Sweet Potato [Ipomoea batatas (L.) Lam.] Collections in Ethiopia

Agronomic and Physicochemical Evaluation of Sweet Potato [Ipomoea batatas (L.) Lam.] Collections in Ethiopia

Efficiency of Sweet Potato Farmers in Nigeria: Potentials for Food Security and Poverty Alleviation

Genotype × environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique

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