Outline of the CFC/ICCO/IPGRI project achievements

N'Goran Jeanne A.K., Eskes Albertus. 2006. Outline of the CFC/ICCO/IPGRI project achievements. In : Global approaches to cocoa germplasm utilization and conservation : Final report of the CDC/CCO/IPGRI project on "Cocoa germplasm utilization and conservation: A global approach" (1998-2004). Eskes Albertus (ed.), Efron Yoel (ed.). CFC, ICCO, IPGRI. Amsterdam : CFC, 11-22. (CFC Technical paper, 50) ISBN 978-92-9043-734-5

Résumé : The CFC/ICCO/IPGRI project on "Cocoa Germplasm Utilization and Conservation: a Global Approach" (1998-2003) has significantly increased international collaboration on evaluation, selection and conservation of cocoa germplasm with the aim of producing better varieties. National research institutes in ten cocoa-producing countries, the Cocoa Research Unit (CRU) in Trinidad, the Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), France, the University of Reading, UK, and the International Plant Genetic Resources Institute (IPGRI) have participated in the activities. These were characterization, evaluation and selection of promising cocoa genotypes (clones and hybrids), improvement and enhancement of germplasm populations, exchange of information and of selected germplasm accessions between project sites, and transfer and adoption of improved cocoa selection and breeding technologies. Emphasis in the evaluation and selection process has been on disease and pest resistance. Standardized working procedures for cocoa germplasm evaluation and selection, including disease and pest resistance screening methods, were agreed upon and adopted by the project. Approximately 94 ha of new variety trials (clones and hybrids) have been established at the different project sites. An International Clone Trial was established in nine cocoa-producing countries, permitting the evaluation worldwide of the stability of economically important traits of 20 selected and diverse accessions. Resistance of the "international clones" to the three major species of Phytophthora proved to be generally stable in relation to more than 20 fungal isolates from the ten cocoa-producing countries involved. New sources of resistance to black pod disease (Phytophthora pod rot or Ppr), witches' broom disease and cocoa mirids have been identified in most cocoa collections. Germplasm enhancement for resistance to Phytophthora pod rot has been successfully carried out in Trinidad and Tobago, using the genetic diversity present in the International Cocoa Genebank, Trinidad (ICG,T). The large efforts on germplasm evaluation and information exchange have allowed the identification of an international working collection, called "CFC/ICCO/IPGRI Project Collection", which contains 110 accessions possessing valuable agronomic traits and wide genetic diversity. Distribution of this collection to user countries, through the intermediate quarantine facility at the University of Reading, UK, has been initiated. The positive effects of the project include increased human capacity building, more effective and coordinated use of limited resources, increased collaboration between cocoa conservation and utilization efforts, and enhanced sustainability of cocoa breeding programmes. The achievements in the current project have permitted the partners to foster further international collaboration and to involve the farmers directly in the process of developing new varieties within the framework of the new CFC/ICCO/IPGRI project on "Cocoa Productivity and Quality Improvement: a Participatory Approach", that was initiated in June 2004.

Classification Agris : F30 - Génétique et amélioration des plantes
A50 - Recherche agronomique

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• N'Goran Jeanne A.K., CNRA (CIV)
• Eskes Albertus, CIRAD-CP-UPR Bioagresseurs de pérennes (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/537695/)

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