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Dealing with farmers' Ethnolinguistic differences when collecting crop diversity on-farm

Kamau Joseph Ireri, Labeyrie Vanesse, Njoroge Grace Njeri, Wanjoya Anthony Kibira, Wambugu Peterson Weru, Muthamia Zachary Kithinji, Leclerc Christian. 2017. Dealing with farmers' Ethnolinguistic differences when collecting crop diversity on-farm. Plant Genetic Resources, 15 (5) : pp. 400-408.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q4, Sujet : PLANT SCIENCES

Abstract : Identification and characterization of the farmers' named crop varieties cultivated around the world is a major issue for conservation and sustainable use of plant genetic resources. Intraspecific diversity is strongly determined by farmers' socio-cultural environment, but this has little been documented. In this paper, we tested, on a contact zone among three ethnolinguistic groups located on the Mount Kenya region, whether farmers' socio-cultural differences have an impact on the morphological characteristics of the farmers' named sorghum varieties. Eighteen qualitative morphological traits of the panicles were measured. We first compared the morphological diversity of the named varieties among ethnolinguistic groups using multivariate analysis of homogeneity of groups' dispersion and tested their differentiation using permutational multivariate analysis of variance. Discriminant analysis of principal components was then used to categorize the morphological diversity without a priori, and this classification was compared with farmers' local taxonomy (vernacular names) in the three ethnolinguistic groups. Our results show that some morphotypes are peculiar to some ethnolinguistic groups and that a morphotype can bear different variety names while the same variety name can be used to identify different morphotypes. Morphological differentiation that was explained by ethnolinguistic groups was higher for local landraces than for improved varieties. Our findings imply that socio-cultural diversity of farmers and the criteria they use to identify and maintain landraces need to be considered in studying and sampling crop diversity for in situ as well as for ex situ conservation. (Résumé d'auteur)

Mots-clés Agrovoc : Plante alimentaire, Sorghum, Variété, Groupe éthnique, Langue, Anatomie végétale, Variation génétique, Conservation des ressources génétiques, Identification, Analyse multivariée

Mots-clés géographiques Agrovoc : Kenya

Classification Agris : F01 - Crop husbandry
F30 - Plant genetics and breeding
F50 - Plant structure
U10 - Mathematical and statistical methods

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Kamau Joseph Ireri, KARI (KEN)
  • Labeyrie Vanesse, CIRAD-ES-UPR GREEN (FRA)
  • Njoroge Grace Njeri, Jomo Kenyatta University of Agriculture and Technology (KEN)
  • Wanjoya Anthony Kibira, Jomo Kenyatta University of Agriculture and Technology (KEN)
  • Wambugu Peterson Weru, KARI (KEN)
  • Muthamia Zachary Kithinji, KALRO (KEN)
  • Leclerc Christian, CIRAD-BIOS-UMR AGAP (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/581512/)

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