Field development of oil palms Elaeis guineensis Jacq. originating from cryopreserved stabilized polyembryonic cultures

Konan Eugène K., Durand-Gasselin Tristan, Kouadio Justin Y., Niamké A.C., Dumet Dominique, Duval Yves, Rival Alain, Engelmann Florent. 2007. Field development of oil palms Elaeis guineensis Jacq. originating from cryopreserved stabilized polyembryonic cultures. CryoLetters, 28 (5) : 377-386.

Résumé : In this paper, the long term observation of plants originating from control and cryopreserved stabilized polyembryonic cultures (SPCs) of six elite oil palm clones was carried out. Survival of plantlets in the nursery was monitored, then a series of vegetative and floral characteristics of over 440 palms were studied for up to 12 years after field transfer in Côte d'Ivoire. The six clones tested showed an average recovery of 34% after freezing in liquid nitrogen. The average survival in the nursery of plantlets originating from pretreated and dehydrated and from cryopreserved SPCs was higher than that of control SPCs. Palm trees originating from control SPCs were found to flower earlier than those originating from pretreated and dehydrated and from cryopreserved SPCs. This delay in flowering disappeared progressively and all palms had flowered 3 years after planting regardless of the SPC treatment. Abnormal palms were observed in one clone only. With this clone, the percentage of abnormal palms originating from cryopreserved SPCs was significantly lower (5%) than that measured on palms originating from control SPCs (29%).

Mots-clés Agrovoc : Elaeis guineensis, conservation biologique, congélation, stabilité, aptitude à la conservation, développement biologique, expérimentation au champ, floraison, culture d'embryon, polyembryonie

Classification Agris : F02 - Multiplication végétative des plantes
F62 - Physiologie végétale - Croissance et développement
F30 - Génétique et amélioration des plantes

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

Auteurs et affiliations

• Konan Eugène K., CNRA (CIV)
• Durand-Gasselin Tristan, CIRAD-BIOS-UPR Génétique palmier (FRA)
• Kouadio Justin Y., Université d'Abobo-Adjamé (CIV)
• Niamké A.C., CNRA (CIV)
• Dumet Dominique, IRD (FRA)
• Duval Yves, IRD (FRA)
• Rival Alain, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0001-6304-3268
• Engelmann Florent, IRD (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/541685/)

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