Agricultural Innovation and Practice
Drought-tolerant cowpea varieties under farmer-managed conditions in the Sudan savannah: yield and adoption
- Musa A. Garba Institute for Agricultural Research, ABU Zaria ORCID 0000-0001-6642-3311 Search for this author on: Google Scholar
- Ruth E. Bassey Faculty of Agriculture, University of Uyo Search for this author on: Google Scholar
Article Number - 358B71288ECE Vol.10(4), pp. 201-214 , July 2026 https://doi.org/10.71234/jasa.2026.1004.03
Received: 22 February 2026 Accepted: 22 June 2026 Published: 22 July 2026
Copyright © 2026 The Author(s). All rights reserved by the authors.
This is an open access article under the terms of the Creative Commons Attribution 4.0.
Abstract
On-station yield gains in improved cowpea rarely survive contact with farmer practice. Across three cropping seasons we monitored 480 farmer-managed plots in Kano, Jigawa and Katsina states. Mean grain yield rose 34% in the improved varieties, but the gap narrowed sharply where sowing was delayed past the second week of the rains. Adoption at season three reached 58% among farmers who received seed plus a single extension visit, against 21% for seed alone. Yield advantage alone did not predict adoption; access to a reliable seed source did.
Keywords: Cowpea, Drought tolerance, Varietal adoption, Sudan savannah, On-farm trials
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Authors
Institute for Agricultural Research, ABU Zaria
ORCID 0000-0001-6642-3311
Search on Google ScholarFaculty of Agriculture, University of Uyo
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Since publication on 22 July 2026.
How to Cite this Article
Garba, M. A., & Bassey, R. E. (2026). Drought-tolerant cowpea varieties under farmer-managed conditions in the Sudan savannah: yield and adoption. Agricultural Innovation and Practice, 10(4), 201-214. https://doi.org/10.71234/jasa.2026.1004.03
Garba, Musa A., and Ruth E. Bassey. "Drought-tolerant cowpea varieties under farmer-managed conditions in the Sudan savannah: yield and adoption." Agricultural Innovation and Practice, vol. 10, no. 4, 2026, pp. 201-214. https://doi.org/10.71234/jasa.2026.1004.03.
Musa A. Garba, Ruth E. Bassey. "Drought-tolerant cowpea varieties under farmer-managed conditions in the Sudan savannah: yield and adoption." Agricultural Innovation and Practice 10, no. 4 (2026): 201-214. https://doi.org/10.71234/jasa.2026.1004.03.