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Review
. 2018 Apr 19;15(4):805.
doi: 10.3390/ijerph15040805.

The Potential of Integrating Provitamin A-Biofortified Maize in Smallholder Farming Systems to Reduce Malnourishment in South Africa

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Review

The Potential of Integrating Provitamin A-Biofortified Maize in Smallholder Farming Systems to Reduce Malnourishment in South Africa

Mthokozisi K Zuma et al. Int J Environ Res Public Health. .

Abstract

Biofortification interventions have the potential to combat malnutrition. This review explored the use of provitamin A-biofortified maize (PVABM) as a vitamin A deficiency (VAD) reduction agricultural-based strategy. Maize has been identified as one of the key staple crops for biofortification to reduce hidden hunger in Africa. Most nutrition interventions have not been successful in reducing hunger because rural communities, who mainly rely on agriculture, have been indirectly excluded. The biofortification intervention proposed here aims to be an inclusive strategy, based on smallholder farming systems. Vitamin A is a micronutrient essential for growth, immune function, reproduction and vision, and its deficiency results in VAD. VAD is estimated to affect more than 250 million children in developing countries. In Africa, especially sub-Saharan Africa, maize is a staple food for rural communities, consumed by most household members. Due to carotenoids, PVABM presents an orange color. This color has been reported to lead to negative perceptions about PVABM varieties. The perceived agronomic traits of this maize by smallholder farmers have not been explored. Adoption and utilization of PVABM varieties relies on both acceptable consumer attributes and agronomic traits, including nutritional value. It is therefore important to assess farmers' perceptions of and willingness to adopt the varieties, and the potential markets for PVABM maize. It is essential to establish on-farm trials and experiments to evaluate the response of PVABM under different climatic conditions, fertilizer levels and soils, and its overall agronomic potential. For the better integration of PVABM with smallholder farming systems, farmer training and workshops about PVABM should be part of any intervention. A holistic approach would enhance farmers' knowledge about PVABM varieties and that their benefits out-compete other existing maize varieties.

Keywords: Provitamin A-biofortified maize; maize; vitamin A deficiency.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Vitamin A deficiency among the least developed countries (United Nations Children’s Fund (UNICEF)).

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References

    1. Mazvimbakupa F., Thembinkosi Modi A., Mabhaudhi T. Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids. Chil. J. Agric. Res. 2015;75:13–20. doi: 10.4067/S0718-58392015000100002. - DOI
    1. Kruger M., Van Rensburg J.B.J., Van den Berg J. Perspective on the development of stem borer resistance to Bt maize and refuge compliance at the Vaalharts irrigation scheme in South Africa. Crop Prot. 2009;28:684–689. doi: 10.1016/j.cropro.2009.04.001. - DOI
    1. Hu Y., Burucs Z., Schmidhalter U. Effect of foliar fertilization application on the growth and mineral nutrient content of maize seedlings under drought and salinity. Soil Sci. Plant Nutr. 2008;54:133–141. doi: 10.1111/j.1747-0765.2007.00224.x. - DOI
    1. Odendo M., De Groote H., Odongo O.M. Assessment of Farmers’ Preferences and Constraints to Maize Production in Moist Midaltitude Zone of Western Kenya; Proceedings of the 5th International Conference of the African Crop Science Society; Lagos, Nigeria. 21–26 October 2001.
    1. Govender L. Ph.D. Thesis. University of KwaZulu-Natal; Pietermaritzburg, South Africa: 2014. Nutritional Composition and Acceptance of a Complementary Food Made with Provitamin A-Biofortified Maize.

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