β-Carotene yield and productivity of orange-fleshed sweet potato (Ipomoea batatas L. Lam.) as influenced by irrigation and fertilizer application treatments
Open accessAbstract
β-Carotene rich orange-fleshed sweet potatoes are increasingly used in community-based interventions aimed at addressing vitamin A deficiency, but are often cultivated in marginal soils and with sub-optimal agricultural inputs. The aim of the study was to determine (i) β-carotene content, β-carotene yield and water productivity at increments of water application, and, (ii) β-carotene content and β-carotene yield at increments of chemical fertilizer application for orange-fleshed sweet potato in separate field trials. β-Carotene content at the low irrigation treatment was between 15 and 34% higher than at optimal irrigation treatment. Increased water application brought about a two-fold increase in β-carotene yield per unit area. The best combination of β-carotene yield and water productivity (g β-carotene ha−1 mm−1 water applied) was achieved at the intermediate (60%) irrigation treatment. Calculations showed that 1 ha of orange-fleshed sweet potato produced at the intermediate water application at yield level of 24.6–28.4 t ha−1, can potentially provide 452–730 households (of six persons) with an adequate amount of vitamin A over a period of 180 days. β-Carotene content was 14% higher for both intermediate (50%) and high (100%) fertilizer treatments, compared to the 0% fertilizer treatment. β-Carotene yield increased two-fold at the intermediate and four-fold at the high fertilization treatment. This paper provides novel information on the effect of irrigation on β-carotene yield, as well as β-carotene water productivity in orange-fleshed sweet potato. Follow-up research on a range of varieties is suggested toward obtaining recommendations for broad application in vitamin A crop-based interventions to optimize the β-carotene yield in orange-fleshed sweet potato.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Changes in water conditions may alter the β-carotene content of sweet potato storage roots.
“Changes in water conditions may alter the β-carotene content of sweet potato storage roots (Laurie et al., 2012).”
From Development and identification of SSR markers associated with starch properties and β-carotene content in the storage root of sweet potato (Ipomoea batatas L.) (2016) · cites this paper as Laurie et al., 2012
These traits are easily affected by environmental factors, such as weather differences.
“A possible reason for this variation is that these traits are easily affected by environmental factors (Laurie et al., 2012; Zhou et al., 2015), such as weather differences.”
From Development and identification of SSR markers associated with starch properties and β-carotene content in the storage root of sweet potato (Ipomoea batatas L.) (2016) · cites this paper as Laurie et al., 2012
Cites
Maternal and child undernutrition: global and regional exposures and health consequences
Black, R. E., Allen, L. H., Bhutta, Z. A., Caulfield, L. E., de Onis, M., Ezzati, M., Mathers, C., & Rivera, J. (2008) · The Lancet · doi:10.1016/s0140-6736(07)61690-0 · Cited by 6,443 · see citing works
Trumbo (2001) · doi:10.1016/s0002-8223(01)00078-5 · Cited by 4,852 · see citing works
Ezzati, M., López, A. D., Rodgers, A., & Murray, C. J. L. (2004) · Cited by 3,319 · see citing works
Comparative quantification of health risks conceptual framework and methodological issues
Murray, C. J., Ezzati, M., Lopez, A. D., Rodgers, A., & Vander Hoorn, S. (2003) · Population Health Metrics · doi:10.1186/1478-7954-1-1 · Cited by 887 · see citing works
Low, J. W., Arimond, M., Osman, N., Cunguara, B., Zano, F. C., & Tschirley, D. (2007) · Journal of Nutrition · doi:10.1093/jn/137.5.1320 · Cited by 562 · see citing works
Protective role of antioxidant enzymes under high temperature stress
Almeselmani, M., Deshmukh, P. S., Sairam, R. K., Kushwaha, S. R., & Singh, T. P. (2006) · Plant Science · doi:10.1016/j.plantsci.2006.04.009 · Cited by 555 · see citing works
van Jaarsveld, P. J., Faber, M., Tanumihardjo, S. A., Nestel, P., Lombard, C. J., & Benadé, A. J. S. (2005) · American Journal of Clinical Nutrition · doi:10.1093/ajcn/81.5.1080 · Cited by 401 · see citing works
Self-citationWest, K. P., & Darnton‐Hill, I. (2008) · Humana Press eBooks · doi:10.1007/978-1-59745-464-3_13 · Cited by 315 · see citing works
Bartoli, C. G., Simontacchi, M., Tambussi, E. A., Beltrano, J., Montaldi, E. R., & Puntarulo, S. (1999) · Journal of Experimental Botany · doi:10.1093/jxb/50.332.375 · Cited by 231 · see citing works
Retention of β-carotene in boiled, mashed orange-fleshed sweet potato
van Jaarsveld, P. J., Marais, D. W., Harmse, E., Nestel, P., & Rodriguez–Amaya, D. B. (2006) · Journal of Food Composition and Analysis · doi:10.1016/j.jfca.2004.10.007 · Cited by 163 · see citing works
Faber, M., Phungula, M. A. S., Venter, S. L., Dhansay, M. A., & Benadé, A. (2002) · American Journal of Clinical Nutrition · doi:10.1093/ajcn/76.5.1048 · Cited by 147 · see citing works
Self-citationGeorge, M. S., Lu, G., & Zhou, W. (2002) · Field Crops Research · doi:10.1016/s0378-4290(02)00043-6 · Cited by 101 · see citing works
van Heerden, P. D. R., & Laurie, R. (2008) · Physiologia Plantarum · doi:10.1111/j.1399-3054.2008.01111.x · Cited by 89 · see citing works
Self-citationSmoleń, S., & Sady, W. (2009) · Scientia Horticulturae · doi:10.1016/j.scienta.2008.11.029 · Cited by 87 · see citing works
Antioxidant Capacity and Antioxidant Content in Roots of 4 Sweetpotato Varieties
Rautenbach, F., Faber, M., LAURIE, S. M., & Laurie, R. (2010) · Journal of Food Science · doi:10.1111/j.1750-3841.2010.01631.x · Cited by 78 · see citing works
Self-citationTumwegamire, S., Kapinga, R., Zhang, D., Crissman, C. C., & Agili, S. (2005) · African Crop Science Journal · doi:10.4314/acsj.v12i3.27884 · Cited by 53 · see citing works
Effect of potassium fertilizer and foliar zinc application on yield and quality of sweet potato
El-Baky, M. M. H. A., Ahmed, A. A., El-Nemr, M. A., & Zaki, M. F. (2010) · Research Journal of Agriculture and Biological Sciences · Cited by 51 · see citing works
LAURIE, S. M., & Faber, M. (2008) · Journal of the Science of Food and Agriculture · doi:10.1002/jsfa.3319 · Cited by 46 · see citing works
Self-citationLenka, S., & Singh, A. K. (2011) · Cited by 14 · see citing works
Initiation and First Results of a Biofortification Program for Sweet Potato in South Africa
LAURIE, S. M., van den Berg, A. A., Tjale, S. S., Mulandana, N. S., & Mtileni, M. M. (2009) · Journal of Crop Improvement · doi:10.1080/15427520902774298 · Cited by 12 · see citing works
Self-citationLAURIE, S. M., Malemela, M. L., Magoro, M. D., Braun, B. R., Bok, I., & Nxumalo, M. H. (2002) · Acta Horticulturae · doi:10.17660/actahortic.2002.583.10 · Cited by 4 · see citing works
Self-citation
Flagged first, then by citations
Cited by
Sorted by citations
Garg, M., Sharma, N., Sharma, S., Kapoor, P., Kumar, A., Chunduri, V., & Arora, P. (2018) · Frontiers in Nutrition · doi:10.3389/fnut.2018.00012 · Cited by 742 · see citing works
Carazo, A., Macáková, K., Matoušová, K., Krčmová, L. K., Protti, M., & Mladěnka, P. (2021) · Nutrients · doi:10.3390/nu13051703 · Cited by 418 · see citing works
Yooyongwech, S., Samphumphuang, T., Tisarum, R., Theerawitaya, C., & Cha–um, S. (2015) · Scientia Horticulturae · doi:10.1016/j.scienta.2015.11.002 · Cited by 181 · see citing works
Biofortification of sweet potato for food and nutrition security in South Africa
LAURIE, S. M., Faber, M., Adebola, P. O., & Belete, A. (2015) · Food Research International · doi:10.1016/j.foodres.2015.06.001 · Cited by 120 · see citing works
Self-citationKiran, A., Wakeel, A., Mahmood, K., Mubaraka, R., Hafsa, H., & Haefele, S. M. (2022) · Agronomy · doi:10.3390/agronomy12020452 · Cited by 114 · see citing works
Low, J. W., Ortiz, R. O., Vandamme, E., Andrade, M., Biazin, B., & Grüneberg, W. J. (2020) · Frontiers in Sustainable Food Systems · doi:10.3389/fsufs.2020.00050 · Cited by 105 · see citing works
Siwela, M., Pillay, K., Govender, L., Lottering, S., Mudau, F. N., Modi, A. T., & Mabhaudhi, T. (2020) · Foods · doi:10.3390/foods9060815 · Cited by 96 · see citing works
Phytochemicals in Leaves and Roots of Selected Kenyan Orange Fleshed Sweet Potato (OFSP) Varieties
Abong, G. O., Muzhingi, T., OKOTH, M. W., Ngángá, F., Ochieng, P. E., Mbogo, D. M., Malavi, D. N., Akhwale, M., & Ghimire, S. R. (2020) · International Journal of Food Science · doi:10.1155/2020/3567972 · Cited by 59 · see citing works
Multivariate analysis of yield and quality traits in sweet potato genotypes (Ipomoea batatas L.)
Alam, Z., Akter, S., Khan, M. A. H., Amin, M. N., Karim, M. R., Rahman, M. H. S., Rashid, M. H., Rahman, M. M., Mokarroma, N., Sabuz, A. A., et al. (2024) · Scientia Horticulturae · doi:10.1016/j.scienta.2024.112901 · Cited by 40 · see citing works
The Micronutrient Deficiencies Challenge in African Food Systems
Barrett, C. B., & Bevis, L. E. M. (2015) · Oxford University Press eBooks · doi:10.1093/acprof:oso/9780198733201.003.0004 · Cited by 40 · see citing works
Biofortification: A long-term solution to improve global health- a review
Monika, G., Kim, S. R. M., Kumar, P. S., Gayathri, K. V., Rangasamy, G., & Saravanan, A. (2022) · Chemosphere · doi:10.1016/j.chemosphere.2022.137713 · Cited by 38 · see citing works
Yooyongwech, S., Theerawitaya, C., Samphumphuang, T., & Cha–um, S. (2013) · Scientia Horticulturae · doi:10.1016/j.scienta.2013.07.041 · Cited by 38 · see citing works
Nutritional water productivity of selected leafy vegetables
Nyathi, M. K., van Halsema, G. E., Beletse, Y. G., Annandale, J. G., & Struik, P. C. (2018) · Agricultural Water Management · doi:10.1016/j.agwat.2018.07.025 · Cited by 35 · see citing works
Prospects to improve the nutritional quality of crops
Scharff, L. B., Saltenis, V. L. R., Jensen, P. E., Baekelandt, A., Burgess, A. J., Burow, M., Ceriotti, A., Cohan, J., Geu‐Flores, F., Halkier, B. A., et al. (2021) · Food and Energy Security · doi:10.1002/fes3.327 · Cited by 33 · see citing works
Zhang, K., Wu, Z., Tang, D., Lv, C., Luo, K., Zhao, Y., Liu, X., Huang, Y., & Wang, J. (2016) · Frontiers in Plant Science · doi:10.3389/fpls.2016.00223 · Cited by 32 · see citing works
Mulovhedzi, N. E., Araya, N. A., Mengistu, M. G., Fessehazion, M. K., Plooy, C. P. D., Araya, H. T., & van der Laan, M. (2020) · Agricultural Water Management · doi:10.1016/j.agwat.2020.106099 · Cited by 31 · see citing works
Nyathi, M. K., Plooy, C. P. D., van Halsema, G. E., Stomph, T. J., Annandale, J. G., & Struik, P. C. (2019) · Agricultural Water Management · doi:10.1016/j.agwat.2019.02.029 · Cited by 31 · see citing works
Biofortification Under Climate Change: The Fight Between Quality and Quantity
Maqbool, A., Abrar, M. M., Bakhsh, A., Çalışkan, S., Khan, H. Z., Aslam, M., & Aksoy, E. (2020) · Springer eBooks · doi:10.1007/978-3-030-49732-3_9 · Cited by 30 · see citing works
Nutritional value and consumer perception of biofortified sweet potato varieties
Rosero, A., Pastrana, I., Martínez, R., Perez, J.-L., Espitia, L., Araujo, H., Belalcázar, J., Granda, L., Jaramillo, A. M., & Gallego‐Castillo, S. (2022) · Annals of Agricultural Science Cairo · doi:10.1016/j.aoas.2022.05.004 · Cited by 21 · see citing works
PHYSICOCHEMICAL CHARACTERISTICS OF TUBERS FROM ORGANIC SWEET POTATO ROOTS
do Nascimento, K. D. O., Lopes, D. S., Takeiti, C. Y., Barbosa, J. L., & Barbosa, M. I. M. J. (2015) · Revista Caatinga · Cited by 17 · see citing works
Yooyongwech, S., Samphumphuang, T., Theerawitaya, C., & Cha–um, S. (2014) · Plant Omics · Cited by 14 · see citing works
Mahmud, A.-A., Alam, M. J., Heck, S., Grüneberg, W. J., Chanda, D., Rahaman, E. H. M. S., Molla, M. S. H., Anwar, M. M., Talukder, M. A.-A. H., Ali, M. A., et al. (2021) · Agronomy · doi:10.3390/agronomy11102046 · Cited by 13 · see citing works
Genetic diversity of South African sweetpotato germplasm using molecular markers
Selaocoe, M. E., Adebola, P. O., Pillay, M., & LAURIE, S. M. (2019) · Journal of Crop Improvement · doi:10.1080/15427528.2019.1671930 · Cited by 12 · see citing works
Self-citationZhang, Y., Tang, Y., Hu, Y., Feng, S., Wang, F., & Wang, Z. (2023) · European Journal of Agronomy · doi:10.1016/j.eja.2023.126979 · Cited by 11 · see citing works
Effects of water deficit on growth and performance of drip irrigated sweet potato varieties
Karakas, M. C., Kurunç, A., & Dinçer, C. (2020) · Journal of the Science of Food and Agriculture · doi:10.1002/jsfa.10929 · Cited by 10 · see citing works
Kgonothi, D., Mehlomakulu, N. N., & Emmambux, M. N. (2024) · Journal of Food Processing and Preservation · doi:10.1155/2024/6336446 · Cited by 8 · see citing works
Gauliya, K., Pathak, A., Mandal, N., Manjhi, M. K., Upadhyaya, D. C., Raj, A., & Upadhyaya, C. P. (2025) · Journal of soil science and plant nutrition · doi:10.1007/s42729-025-02345-8 · Cited by 8 · see citing works
Biofortification of Carotenoids in Agricultural and Horticultural Crops
Shwetha, H. J., Shilpa, S., Arathi, B. P., Marisiddaiah, R., & Lakshminarayana, R. (2020) · Wiley eBooks · doi:10.1002/9781119511144.ch7 · Cited by 8 · see citing works
Balázs, V., Helyes, L., Daood, H. G., Pék, Z., Neményi, A., Égei, M., & Takács, S. (2023) · Horticulturae · doi:10.3390/horticulturae9050523 · Cited by 7 · see citing works
Balázs, V., Helyes, L., Daood, H. G., Pék, Z., Ilahy, R., Neményi, A., Égei, M., & Takács, S. (2024) · Agronomy · doi:10.3390/agronomy14112485 · Cited by 6 · see citing works
Faber, M., LAURIE, S. M., & van Jaarsveld, P. J. (2013) · AFRICAN JOURNAL OF BIOTECHNOLOGY · Cited by 6 · see citing works
Self-citationChipungu, F., Wisdom, C., Ambali, A., John, S., Nzola, M., & Jonathan, M. (2017) · Journal of Agricultural Biotechnology and Sustainable Development · doi:10.5897/jabsd2017.0291 · Cited by 6 · see citing works
Yield and tuber quality of orange-fleshed sweet potato cultivars under drought stress in greenhouse
Rahmawati, N., Lahay, R. R., Irmansyah, T., & Mawarni, L. (2020) · IOP Conference Series Earth and Environmental Science · doi:10.1088/1755-1315/454/1/012159 · Cited by 4 · see citing works
Water use efficiency of orange-fleshed sweetpotato ( Ipomoea batatas L. Lam.)
Masango, S. (2015) · UpSpace Institutional Repository (University of Pretoria) · Cited by 4 · see citing works
Nyathi, M. K. (2019) · doi:10.18174/478724 · Cited by 4 · see citing works
Genome Editing for Improvement of Nutrition and Quality in Vegetable Crops
Gupta, P., Karkute, S. G., Dash, P. K., & Singh, A. K. (2023) · Wiley eBooks · doi:10.1002/9781394183913.ch11 · Cited by 4 · see citing works
Baki, H. M. A. E., Liang, S., & Fujimaki, H. (2023) · Journal of Water Resources Planning and Management · doi:10.1061/jwrmd5.wreng-5801 · Cited by 3 · see citing works
Biofortified sweet potato—an ideal source of mitigating hidden hunger
Hamda, Ahmad, M. Q., Saleem, A., Yan, H., & Li, Q. (2024) · Elsevier eBooks · doi:10.1016/b978-0-323-91735-3.00013-3 · Cited by 3 · see citing works
Status of Biofortification in Tropical Root and Tuber Crops
Anil, S. R., Sheela, M. N., Chandra, C. V., Radhika, N. K., & Asha, K. (2023) · Current Science · doi:10.18520/cs/v124/i2/169-175 · Cited by 3 · see citing works
Combating Malnutrition through Sustainable Approaches
Saeed, F., Ahmed, A., & Afzaal, M. (2022) · IntechOpen eBooks · doi:10.5772/intechopen.96841 · Cited by 3 · see citing works
Konlan, A. B., Assumang, I., & Abe-Inge, V. (2022) · IntechOpen eBooks · doi:10.5772/intechopen.104460 · Cited by 2 · see citing works
Gemechu, G. E. (2019) · Greener Journal of Soil Science and Plant Nutrition · doi:10.15580/gjsspn.2019.1.062119114 · Cited by 2 · see citing works
Debela, K. B., Yohannes, D. B., Beyene, T. M., & Bantte, K. (2025) · Journal of Agriculture and Food Research · doi:10.1016/j.jafr.2025.102115 · Cited by 2 · see citing works
Developing Crop Varieties by Physiological Breeding for Improving Plant Nutrition
Taria, S., Meena, S., Nagar, S., Kumar, S., & Arora, A. K. (2023) · Springer eBooks · doi:10.1007/978-981-19-7498-4_4 · Cited by 2 · see citing works
Biofortification of Edible Plants
Benkeblia, N. (2020) · Wiley eBooks · doi:10.1002/9781119511144.ch1 · Cited by 2 · see citing works
Arnold, M., Mbungu, W. B., Nganga, K., & Henry, M. (2023) · World Water Policy · doi:10.1002/wwp2.12153 · Cited by 1 · see citing works
Crop Biofortification Innovative Solutions for Micronutrient Deficiency
Sharma, A., Singh, A., Rajput, V. D., Minkina, T., Манджиева, С. С., Elshikh, M. S., El-Ramady, H. R., & Ghazaryan, K. A. (2024) · Advances in environmental engineering and green technologies book series · doi:10.4018/979-8-3693-1471-5.ch014 · Cited by 1 · see citing works
Laurie, R. (2014) · Cited by 1 · see citing works
Self-citationCarotenoids Biofortification of Sweet Potatoes
Benkeblia, N., Pinto, E. C. B., & Vasconcelos, M. W. (2020) · Wiley eBooks · doi:10.1002/9781119511144.ch5 · Cited by 1 · see citing works
Sweet Potato Production in Uganda in a Changing Climate: What is the Role for Fertilisers
Young, H. R., Plumpton, H., Miret, J. A., Cornforth, R., Petty, C., Todman, L., O’Sullivan, D. M., Wagstaff, C., Mason, O., Shepherd, T., et al. (2020) · CentAUR (University of Reading) · doi:10.5281/zenodo.3955097 · Cited by 1 · see citing works
Sanchez-Delgado, M., M., J. A. M., T., D. A. J., Soto, G. R., & Quispe, J. A. (2020) · Anales Científicos · doi:10.21704/ac.v81i2.1679
Biofortification for Crop Quality Enhancement
Ali, H., Akhtar, S., Bangash, N., Hayat, M. T., Tauqeer, H. M., & Durr-e-Nayab (2022) · CABI eBooks · doi:10.1079/9781789248098.0004
Agronomic biofortification through nano-fertilizers: technological updates and progress
Singh, P. P., Khare, A., & Chaturvedi, S. (2023) · Elsevier eBooks · doi:10.1016/b978-0-323-95332-0.00013-2
Unlocking the potential for yellow maize production and utilization in Homa-bay County, Kenya
Aguk, J., Richard, O., George, C., Bright, J. M., & Abong, G. O. (2023) · East African Journal of Science Technology and Innovation · doi:10.37425/eajsti.v4i.733
Lalusin, A. G., Heredia, A. C., Batalon-Gaviña, L. J. S., & Iranista, E. J. A. (2025) · International Journal of Agricultural Technology · doi:10.63369/ijat.2025.21.6.2329-2354
- Authors
- Laurie, S. M., Faber, M., van Jaarsveld, P. J., Laurie, R. N., du Plooy, C. P., & Modisane, P. C.
- Affiliations
- Agricultural Research Council of South Africa (ZA)
- South African Medical Research Council (ZA)
- Corresponding author
- Laurie, S.M.
- Venue
- Scientia Horticulturae
- Publisher
- Elsevier BV
- Published
- 2012-07
- Volume
- 142
- Pages
- 180-184
- ISSN
- 0304-4238 (ISSN-L)
- OpenAlex
- W2048708255
- Cited by
- 55
- References
- 21
- Citations by year
- 2025: 3 · 2024: 5 · 2023: 8 · 2022: 6 · 2021: 3 · 2020: 12 · 2019: 4 · 2018: 3 · 2017: 1 · 2016: 1 · 2015: 5 · 2014: 2 · 2013: 2
- FWCI
- 4.39
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Scientia Horticulturae (publishedVersion, cc-by-nc-nd)
- Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Cape Peninsula University of Technology
- Medical Research Council
- Topics
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Irrigation Practices and Water Management
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
- Keywords
- orange-fleshed sweet potato, Ipomoea batatas, water productivity, irrigation, mineral fertilizers, vitamin A deficiency, marginal soils
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
