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Performance evaluation of improved White-Fleshed Sweet Potatoes (Ipomoea batatas (L.) Lam.) Varieties for yield and yield-related traits in South Western Ethiopia.

Wondimu Yonas, Fikadu Ejigu, Andualem Gadisa


Sweet potato (Ipomoea batatas (L.) Lam.) is one of the most important root and tuber crop that rich in
vitamins, starch, protein, and the carbohydrate of sweet potato was easily soluble with in short period of time.
To break the food security problem several sweet potato technologies have been introduced and evaluated in
different areas of the country. Still, adaptation and performances of improved white-fleshed sweet potato
varieties were not yet assessed in the southwest region. Since this research project was initiated to evaluate
the adaptability of improved white-fleshed sweet potato varieties based on their yield performance and test
preference in southwest Ethiopia. Across three locations, six improved white-fleshed sweet potato (Ipomoea
batatas L.) varieties namely: Awassa-83, Temesgen, Beletech, Belela, Kudade, Wondogenet with one local
variety were evaluated by using a randomized complete block design with three replications for two seasons.
Analysis of all collected data were done by using the R software, and quality preference of seven varieties
were evaluated by using five testpreference parameters. Combined analysis of variance indicated that the
main effects due to environments, and Varieties were highly significant on tuberous root yield. The
contribution of Environments and Varieties to the total variation in tuber yield was about 65 % and 6.3 %,
independently. Over all environments, Awassa 83 variety gives best yield (46.1 t ha -1 ). In addition, there was a
significant difference between the varieties in test preference, the best test preference was observed from
variety Awassa-83 which also gave significantly the highest storage total root yield. Since, the variety
Awassa-83 was recommended for production under the rain-fed condition of Southwest Ethiopia in the
Gimbo, Yeki, and Gura-Ferda districts.


Adaptation, Evaluation, Location, Yield, White-Fleshed, Variety

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Alam, M.K., 2021. A comprehensive review of sweet potato (Ipomoea batatas [L.] Lam): Revisiting the

associated health benefits. Trends in Food Science & Technology, 115, pp.512-529.

Andrade,M., I. Barker, D. Cole, H. Dapaah, H. Elliott, S. Fuentes, W. Gruneberg, R. Kapinga, J.

Kroschel, R. Labarta, B. Lamaga, C. Loechl, L. Jan, J. Lynam, R. Mwanga, O. Ortiz, A. Oswald and G.

Thiele. 2009. Unleashing the Potential of Sweetpotato in sub-Saharan Africa: Current Challenges and

Way Forward.

Balcha, F.G., 2015. Breeding of sweetpotato for improvement of root dry matter and β-carotene contents

in Ethiopia (Doctoral dissertation).

Bovell-Benjamin, A.C. 2010. Bioactivity, benefits, and safety of traditional and ethnic foods. In

ensuring global food safety: exploring global harmonization. Elsevier Inc, 363-382.

Chiona M, Towards Enhancement of β-carotene Content of High Dry Mass Sweetpotato Genotypes in

Zambia, PhD Thesis, University of KwaZulu-Natal, Pietermaritzburg, South Africa, 2009, constraints,

post-harvest handling, and farmers’ preferences. Research on Crops 16(1): 104-115.

CSA,2015. Ethiopia Agricultural Sample Survey 2014/2015: Report on Land Utilization.Central

Statistical Agency, Federal Democratic Republic of Ethiopia, Addis Ababa, Ethiopia.

CSA,2019. Agricultural sample survey 2018/2019. Report on area and production of major crops.

Central Statistical Agency of Ethiopia.

Ejigu, F., Yonas, W., Amare, A. and Gadisa, A., 2022. Adaptation of recently released improved orange

flesh sweet potato (Ipomoea batatas L.) varieties in Southwestern Ethiopia. International Journal of

Agricultural Research, Innovation and Technology (IJARIT), 12(2), pp.111-116.

Enyi, B.A.C. 1977, Analysis of growth and tuber yield in sweet potato (Ipomoea batatas) cultivars. J.

Agric. Sci. 88, 421- 430. Ethiopia. Adv Crop Sci Tech. 7(427): 2.

Fekadu Gurmu, Mark L. 2015, Diagnostic assessment of sweet potato production in Ethiopia:

constraints, post-harvest handling, and farmers’ preferences. Research on Crops 16(1):104-115.

Grüneberg W.J., Manrique K., Zhang D., Hermann M., G x E interaction for a diverse set of sweet

potato genotypes evaluated across varying ecogeographic conditions in Peru, Crop Science, 2005,


Fekadu Gurmu, 2019, Sweetpotato Research and Development in Ethiopia: A Comprehensive Review.

Journal of Agricultural and Crop Research 7(7).

Fekadu Gurmu. and Mekonen S. 2019. Root yield stability analysis of white-fleshed sweet potato

genotypes in Ethiopia. Adv Crop Sci Tech. 7(427): 2.

Huaman, Z. 1999. Sweetpotato (Ipomoea batatas) Germplasm Management. International Potato

Center, Lima, Peru.

Mbwaga Z., Mataa M., Msabaha M., Quality and yield of orange-fleshed sweet potato (Ipomoea batatas)

varieties grown in different agro-ecologies, In Kasem, Z.A., editors, The 8th African Crop Science

Society Conference Proceeding, El-Minia, Egypt. 27-31 October 2007, African Crop Science Society,

, (2): 339-345

Mekonnen, B., Tulu, S. and Nego, J., 2015. Orange fleshed sweet potato (Ipomoea batatas L.) varieties

evaluated with respect to growth parameters at Jimma in Southwestern Ethiopia. Journal of Agronomy,

(3), p.164.

Merga, W., Gebreselassie, W. and Garedew, W., 2021. Genotype× Environment Interaction Studies of

Promising Teppi Coffee (Coffea arabica L.) Genotypes in Southwestern Ethiopia. International Journal

of Agronomy, 2021, pp.1-9.

Moussa S.A.M., Hala A.A.E, Nashwa I.A.E., Stability study of sweet potato yield and its component

characters under different environments by joint regression analysis, Journal of Horticultural Science

and Ornamental Plants, 2011, (3): 43-54

Negeve, J.M., S.K. Hahn and J.C. Bouwkamp. 1992. Effect of altitude and environments on sweet

potato yield in Cameroon. Tropical Agriculture-Trinidad 69: 43-48.

Onwuewe, l.C. &T.D. Sinha. 1991, Field crop production in tropical Africa. Principles and practice.

Technical Centre for Agricultural and Rural Co-operation.

Osiru, M.O., Olanya, O.M., Adipala, E., Kapinga, R.E.G.I.N.A. and Lemaga, B.E.R.G.A., 2009. Yield

Stability Analysis of'Ipomoea batatus' L. Cultivars in Diverse Environments. Australian Journal of Crop

Science, 3(4):213-220.

Ramirez, G.P. 1992. Cultivation, harvesting, and storage of sweet potato products. In: David, M. and N.

Solveig, editors. Proceedings of the FAO Expert Consultation on Roots, Tubers, Plantains and Bananas

in Animal Feeding, Cali, Colombia. 21–25 January 1991. FAO, Rome.; 203-215.

Tumwegamire S., Rubaihayo P.R., Grüneberg W.J., LaBonte D.R., Mwanga R.O.M., Kapinga R.,

Genotype x Environment Interactions for East African Orange-Fleshed Sweetpotato Clones Evaluated

across Varying Ecogeographic Conditions in Uganda. Crop Sci., 2016, (56): 1-17

Wolfgang, J.G., K. Manrique, D. Zhang and M. Hermann. 2005. Genotype x environment interactions

for a diverse set of sweetpotato clones evaluated across varying ecogeographic conditions in Peru. Crop

Science 45: 2160-2171.

Sora, S.A., 2021. Evaluation of Sweet Potato (Ipomoea Batatas (L) Lam) Varieties at T epi,

Southwestern Ethiopia. J Hortics, 8, p.538.


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