Journal of
Development and Agricultural Economics

  • Abbreviation: J. Dev. Agric. Econ.
  • Language: English
  • ISSN: 2006-9774
  • DOI: 10.5897/JDAE
  • Start Year: 2009
  • Published Articles: 556

Full Length Research Paper

Welfare impact of genetically modified TELA® Bt maize varieties and their adoption among smallholder farmers in South Africa

Lesiba Pertunia Mailula
  • Lesiba Pertunia Mailula
  • Economic Analysis Unit, Agricultural Research Council, 1134 Park Street, Hatfield, Pretoria 0028, South Africa
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Kenneth Nhundu
  • Kenneth Nhundu
  • Economic Analysis Unit, Agricultural Research Council, 1134 Park Street, Hatfield, Pretoria 0028, South Africa
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Abbyssinia Mushunje
  • Abbyssinia Mushunje
  • Department of Agricultural Economics and Extension, University of Fort Hare, Alice Campus, Alice 5700, South Africa
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Marechera George
  • Marechera George
  • African Agricultural Technology Foundation, ILRI Campus, P.O Box 30709- 00100, Nairobi, Kenya
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Millicent Sedi
  • Millicent Sedi
  • African Agricultural Technology Foundation, ILRI Campus, P.O Box 30709- 00100, Nairobi, Kenya
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Caleb Obunyali
  • Caleb Obunyali
  • African Agricultural Technology Foundation, ILRI Campus, P.O Box 30709- 00100, Nairobi, Kenya
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Sylvester Oikeh
  • Sylvester Oikeh
  • African Agricultural Technology Foundation, ILRI Campus, P.O Box 30709- 00100, Nairobi, Kenya
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Lebogang A. Madubanya
  • Lebogang A. Madubanya
  • Agricultural Research Council-Grain Crops Campus, Private Bag X1251, Potchefstroom, 2520, South Africa
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  •  Received: 19 December 2023
  •  Accepted: 15 May 2024
  •  Published: 30 September 2024

Abstract

This study analysed the impact of GM TELA® MON89034 Bt maize technology adoption on the welfare of smallholder maize farmers in Limpopo and Mpumalanga provinces in South Africa. Descriptive statistics results indicated that TELA® Bt maize yielded 61.1% more output compared to conventional maize varieties. The gross margin analysis showed higher incomes for the TELA® Bt maize farmers (R2, 834.93 ha-1) compared with R2,124.96 ha-1 for the conventional maize farmers. The Propensity Score Matching and the Probit model revealed that gender, number of years in farming, credit access, and market access had a positive and significant influence on the framers’ decision to adopt TELA® Bt maize seed technology, while access to extension services was found to have a negative and significant impact on the adoption of TELA® Bt maize seed. The Average Treatment Effect of the Treated (ATT), using the Nearest Neighbour Matching algorithm indicated that adoption of TELA® Bt. maize technology had a significant and positive impact on yield and income by 33 to 61%. The study recommends increased awareness on benefits of TELA® Bt seed technology to farmers, especially gender awareness through training, access to credit, and ownership of assets, to ensure equity between women and men on access to production resources and decision-making, because of the significant role of women in the maize value chain.

Key words: Adopters, income, propensity score matching, smallholder farmers, TELA® Bt maize, yield.