Analyse des savoirs et des pratiques paysannes relatives à la domestication des ignames sauvages en Afrique de l'Ouest dont l'intérêt est l'adaptation de ces plantes aux changements environnementaux. Après une explication détaillée sur la taxonomie, la botanique et la biodiversité de l'igname Dioscorea rotundata, les auteurs analysent la gestion des ressources génétiques pratiquée par les paysans. ©Electre 2025
The domestication of wild yams is still common practice in West Africa. It also offers one of the few remaining opportunities to understand how farmers use their empirical knowledge to tap the genetic resources of wild plants and create products suitable for agriculture.
Yam agronomists and breeders have, until recently, focused little attention on this process of organizing and generating agrobiodiversity. This book aims to fill the gap by pooling existing knowledge on the subject. This original field offers a wealth of prospects for scientific progress at a time when scientists are becoming increasingly aware of the fact that local farmers' knowledge and practices relating to genetic resource management substantially enhances the potential for technical progress and adaptation to environmental change.
The focus is deliberately only on domestication leading to Dioscorea rotundata yams, the type most widely cultivated in West Africa. Several chapters are devoted to the biodiversity of Dioscorea rotundata yams and the wild forms from which they derive.
The authors conclude by putting forward hypotheses to explain the phenotype transformations induced by domestication practices and their maintenance by vegetative propagation. Further research, especially by geneticists, is needed to confirm these hypotheses. Some are already being assessed, using the most advanced molecular marker analysis techniques, by joint teams of scientists from developed and developing countries.
Paru le : 27/06/2006
Thématique : Agriculture et monde paysan
Auteur(s) : Non précisé.
Collection(s) : Update sciences & technologies
Contributeur(s) : Editeur scientifique (ou intellectuel) : David Manley - Auteur : - Auteur : Alexandre Dansi - Auteur : - Auteur :
Série(s) : Non précisé.
ISBN : 978-92-9043-704-8
EAN13 : 9782876146327
Reliure : Broché
Pages : 95
Hauteur: 24.0 cm / Largeur 16.0 cm
Épaisseur: 0.5 cm
Poids: 401 g
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