Food Security

, Volume 10, Issue 2, pp 369–379 | Cite as

Impacts of improved maize varieties in Nigeria: ex-post assessment of productivity and welfare outcomes

  • Tahirou Abdoulaye
  • Tesfamicheal Wossen
  • Bola Awotide
Original Paper


Investment in agricultural research and development is an important intervention for improving crop productivity and household welfare in most developing countries where agriculture is the main source of livelihoods. This paper uses nationally representative plot- and household-level data from the major maize producing regions of Nigeria to assess the impacts of adoption of improved maize varieties on maize yield and household welfare outcomes. The paper employed an endogenous switching regression approach to control for both observed and unobserved sources of heterogeneity between adopters and non-adopters. Adoption of improved maize varieties increased maize grain yield by 574 kg/ha and per-capita total expenditure by US$ 77 (US$ 0.21/day). We found that the incidence of poverty among adopters would have been higher by 6% without adoption of the improved varieties. These findings underscore that investments and policy measures to increase and sustain the adoption of improved maize cultivars are critical for improving the productivity of maize in Nigeria and reducing poverty.


Adoption Improved maize varieties Nigeria Productivity Poverty 



This work was partly funded through the CGIAR Research Program on Maize (Maize-CRP) and a CIMMYT and IITA project, Drought Tolerant Maize for Africa (DTMA).

Compliance with ethical standards

Conflict of interest

The authors declared that they have no conflict of interest.


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature and International Society for Plant Pathology 2018

Authors and Affiliations

  1. 1.International Institute of Tropical Agriculture (IITA)IbadanNigeria
  2. 2.IITAAbujaNigeria
  3. 3.World Vegetable CenterBamakoMali

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