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Estimating the role of spatial varietal diversity on crop productivity within an abatement framework: The case of banana in Uganda


  • Kwikiriza, Norman
  • Katungi, Enid
  • Horna, Daniela


Increasingly, research has indicated that in more risky production environments, genetic variation within species and within population increases the ability to respond to the increasing challenges of environmental stress. This paper analyses the role of banana variety diversity in reducing yield losses associated with biophysical production constraints in Uganda. A damage abatement framework is applied to enable estimation of the contribution of both direct and indirect inputs to the banana yield per unit of area. Primary data were gathered from 120 households. Results indicate that banana variety diversity contributes positively to reducing yield losses caused by biophysical constraints, particularly pests and diseases, but trade-offs exist. High banana variety diversity also has a significant but negative direct impact on banana yields. These trade-offs imply that while banana variety diversity should be promoted for its risk-reducing effects, its adoption beyond what farmers are practicing will largely depend on their objectives, access to alternative abatement agents, and their ability to bear risk. Given the current banana production environment of limited abatement agents and high biotic stress, enhancing diversity appears to be an important option despite trade-offs.

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  • Kwikiriza, Norman & Katungi, Enid & Horna, Daniela, 2011. "Estimating the role of spatial varietal diversity on crop productivity within an abatement framework: The case of banana in Uganda," IFPRI discussion papers 01051, International Food Policy Research Institute (IFPRI).
  • Handle: RePEc:fpr:ifprid:01051

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    References listed on IDEAS

    1. Alfons Oude Lansink & Alain Carpentier, 2001. "Damage Control Productivity: An Input Damage Abatement Approach," Journal of Agricultural Economics, Wiley Blackwell, vol. 52(3), pages 11-22.
    2. P. Owen & Michael Ryan & Clayton Weatherston, 2007. "Measuring Competitive Balance in Professional Team Sports Using the Herfindahl-Hirschman Index," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 31(4), pages 289-302, December.
    3. Huang, Jikun & Hu, Ruifa & Rozelle, Scott & Qiao, Fangbin & Pray, Carl E., 2002. "Transgenic varieties and productivity of smallholder cotton farmers in China," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 46(3), pages 1-21.
    4. Atanu Saha & C. Richard Shumway & Arthur Havenner, 1997. "The Economics and Econometrics of Damage Control," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 79(3), pages 773-785.
    5. Melinda Smale & Jason Hartell & Paul W. Heisey & Ben Senauer, 1998. "The Contribution of Genetic Resources and Diversity to Wheat Production in the Punjab of Pakistan," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 80(3), pages 482-493.
    6. Salvatore Di Falco & Jean-Paul Chavas & Melinda Smale, 2007. "Farmer management of production risk on degraded lands: the role of wheat variety diversity in the Tigray region, Ethiopia," Agricultural Economics, International Association of Agricultural Economists, vol. 36(2), pages 147-156, March.
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    Cited by:

    1. Katungi, Enid & Larochelle, Catherine & Mugaboo, Josephat & Buruchara, Robin, 2016. "Estimating the impact of climbing bean adoption on bean productivity in Rwanda: Endogenous Switching Regression," 2016 Fifth International Conference, September 23-26, 2016, Addis Ababa, Ethiopia 246456, African Association of Agricultural Economists (AAAE).

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    banana diversity; direct inputs; indirect/damage abatement inputs;

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