The IAVAO crop network: A NARS led regional platform for germplasm exchange and multi-environment trials

Diatta Cyril, Kondombo-Barro Clarisse P., Mamadou Ibrahim Aissata, Ouedraogo Nofou, Ousseini Ardaly, Akata Eyanawa, Nebie Baloua, Diallo Abdoulaye, Vaksmann Michel, Faye Jacques Martin, Maina Fanna, Somé Hermann, Crimi Mariano, Habito Corina, Sambakhe Diarétou, Pot David, Fonceka Daniel, Rami Jean-François. 2023. The IAVAO crop network: A NARS led regional platform for germplasm exchange and multi-environment trials. In : Sorghum in the 21th century: Resiliency and Sustainability in the Face of Climate Change. Book of Abstracts. CIRAD, Kansas State University, Sorghum International Development, IRD, CERAAS. Montpellier : CIRAD, Résumé, p. 113. Sorghum in the 21st Century, Global Sorghum Conference, Montpellier, France, 5 Juin 2023/9 Juin 2023.

Résumé : Tremendous progress has been made in terms of crop breeding in West-Africa. However, National breeding programs in West-Africa still have limited resources and are generally too isolated to access significant fundings allowing to develop more innovative breeding approaches. A regional network that brings together breeding programs on several crops including sorghum was initiated in 2018. It gathers 5 different countries in West-Africa (Burkina Faso, Mali, Niger, Senegal, and Togo) and creates the conditions of germplasm exchange as well as data and information sharing. The network is supported by a charter that establishes the rules and responsibilities of its members, covers intellectual property issues related to the exchange and use of germplasm and data, while ensuring a network as functional as possible, and confidence and trust among partners. Measurement variables and methods as well as experimental protocols have been collectively harmonized around common ontologies. Experimental data are stored and analyzed in a shared instance of the Breeding Management System (BMS) and accessible to the members of the network. Globally, since 2018, 61 sorghum varieties have been evaluated through experimental trials conducted in 21 different environments in West-Africa. Between 28 and 45 varieties were evaluated each year in 9 to 13 locations. The data produced so far provides a valuable database on the adaptation of a large set of sorghum varieties and breeding lines representative of the elite material that currently forms the core of national breeding programs in West-Africa. Germplasm exchange allowed breeders to test varieties from other countries and revealed them some interesting material for registration or as trait donors. The multi environment trials also provided valuable data to progress on characterization of photoperiod sensitivity and modeling of target environments. Perspectives to link and extend this network to on-farm testing networks and farmers' germplasm is also under development.

Auteurs et affiliations

• Diatta Cyril, CNRA (SEN) - auteur correspondant
• Kondombo-Barro Clarisse P., INERA (BFA)
• Mamadou Ibrahim Aissata, INRAN (NER)
• Ouedraogo Nofou, INERA (BFA)
• Ousseini Ardaly, INRAN (NER)
• Akata Eyanawa, ITRA (TGO)
• Nebie Baloua, CIMMYT (SEN)
• Diallo Abdoulaye, IER (MLI)
• Vaksmann Michel, CIRAD-BIOS-UMR AGAP (FRA) ORCID: 0000-0002-5258-1279
• Faye Jacques Martin, CERAAS (SEN)
• Maina Fanna, INRAN (NER)
• Somé Hermann, Integrated Breeding Platform (SEN)
• Crimi Mariano, CIRAD-BIOS-UMR AGAP (FRA)
• Habito Corina, Integrated Breeding Platform (FRA)
• Sambakhe Diarétou, CERAAS (SEN)
• Pot David, CIRAD-BIOS-UMR AGAP (FRA) ORCID: 0000-0001-6144-8448
• Fonceka Daniel, CIRAD-BIOS-UMR AGAP (SEN)
• Rami Jean-François, CIRAD-BIOS-UMR AGAP (FRA) ORCID: 0000-0002-5679-3877

Source : Cirad-Agritrop (https://agritrop.cirad.fr/609403/)

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