Pounded yam: Scientific Report on Textural (extensibility) of yam population at CIRAD in Year 2025 at Guadeloupe

Arufe Santiago, Ollier Léa, Domingo Romain, Baltyde Mellyna, Andypain Sandrine, Hubert Olivier, Ayetigbo Oluwatoyin. 2025. Pounded yam: Scientific Report on Textural (extensibility) of yam population at CIRAD in Year 2025 at Guadeloupe. Montpellier : CIRAD-RTB Breeding Project, 17 p.

Résumé : In this report, the extensibility texture of 20 pounded yam samples produced from Dioscorea alata varieties in Guadeloupe in Year 2025 were reported. The pounded yam samples were produced under standard conditions and analysed for the extensibility texture using a Kieffer dough extensibility (KDGE) rig. Dry matter of the fresh yam tubers was also determined. Results showed that the KDGE parameters (extensogram peak force, extensibility and extension area) were discriminant, especially the Extensogram peak force textural parameter. The PCA and hierarchical clustering distinguished the extensibility among the genotypes. For instance, varieties such as Ti-Violet, A9, and A14 had high extensibility, while varieties such as 74F, Dou, A39 and Evolution had poor extensibility. No significant correlations was found between dry matter of fresh yam and the extensibility parameters. There were some similarities and differences between the spatial placements of the same genotypes analysed in both Years 2025 and 2024 on a PCA. These information may be useful for breeders in selection of varieties for breeding improved varieties with consumer-preferred quality, and to understand the effect of harvest years on the extensibility texture or DM of Guadeloupian yam genotypes.

Mots-clés libres : Kieffer dough extensibility, PCA, Pounded yam, Dry matter, Texture, Yam

Agences de financement hors UE : International Potato Center, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Bill and Melinda Gates Foundation

Projets sur financement : (FRA) RTB Breeding

Auteurs et affiliations

• Arufe Santiago, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-8644-6921
• Ollier Léa, CIRAD-PERSYST-UMR Qualisud (FRA)
• Domingo Romain, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-6372-4925
• Baltyde Mellyna
• Andypain Sandrine, CIRAD-PERSYST-UMR Qualisud (GLP) ORCID: 0009-0001-1199-769X
• Hubert Olivier, CIRAD-PERSYST-UMR Qualisud (GLP)
• Ayetigbo Oluwatoyin, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0001-5757-6674

Source : Cirad-Agritrop (https://agritrop.cirad.fr/613188/)

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