A review of varietal change in roots, tubers and bananas: consumer preferences and other drivers of adoption and implications for breeding

Thiele Graham, Dufour Dominique, Vernier Philippe, Mwanga Robert O. M., Parker Monica L., Schulte Geldermann Elmar, Teeken Béla, Wossen Tesfamicheal, Gotor Elisabetta, Kikulwe Enoch, Tufan Hale, Sinelle Sophie, Kouakou Amani Michel, Friedmann Michael, Polar Vivian, Hershey Clair. 2020. A review of varietal change in roots, tubers and bananas: consumer preferences and other drivers of adoption and implications for breeding. International Journal of Food Science and Technology, 17 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Abstract : This review of the literature on varietal change in sub-Saharan Africa looks in detail at adoption of new varieties of bananas in Uganda, cassava in Nigeria, potato in Kenya, sweetpotato in Uganda and yams in C^ote d'Ivoire. The review explored three hypotheses about drivers of varietal change. There was a strong confirmation for the hypothesis that insufficient priority given to consumer-preferred traits by breeding programmes contributes to the limited uptake of modern varieties (MVs) and low varietal turnover. Lack of evidence meant the second hypothesis of insufficient attention to understanding and responding to gender differences in consumer preferences for quality and post-harvest traits was unresolved. The evidence on the third hypothesis about the informal seed system contributing to slow uptake of MVs was mixed. In some cases, the informal system has contributed to rapid uptake of MVs, but often it appears to be a barrier with inconsistent varietal naming a major challenge.

Mots-clés Agrovoc : Banane plantain, Manioc, Patate douce, Pomme de terre, Igname, Variété, Adoption de l'innovation, Enquête

Mots-clés géographiques Agrovoc : Ouganda, Nigéria, Kenya, Côte d'Ivoire

Mots-clés libres : Banana, Cassava, Consumer preferences, Plant Breeding, Potato, Root and tuber crops, Sweetpotato, Varietal adoption, Yam

Classification Agris : S40 - Nutrition programmes
F30 - Plant genetics and breeding

Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires

Auteurs et affiliations

  • Thiele Graham, CIP (PER) - auteur correspondant
  • Dufour Dominique, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Vernier Philippe, CIRAD-DGDRS (FRA)
  • Mwanga Robert O. M., CIP (UGA)
  • Parker Monica L., CIP (KEN)
  • Schulte Geldermann Elmar, CIP (DEU)
  • Teeken Béla, IITA (NGA)
  • Wossen Tesfamicheal, IITA (KEN)
  • Gotor Elisabetta, CIAT (ITA)
  • Kikulwe Enoch, CIAT (UGA)
  • Tufan Hale, Cornell University (USA)
  • Sinelle Sophie, Syngenta Foundation for Sustainable Agriculture (FRA)
  • Kouakou Amani Michel, CNRA (CIV)
  • Friedmann Michael, CIP (PER)
  • Polar Vivian, CIP (PER)
  • Hershey Clair

Source : Cirad-Agritrop (

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