Adji Beda Innocent, Letort Véronique, Wang Xiumei, Kang Meng Zhen, De Reffye Philippe, Jaeger Marc, Cilas Christian, Kouassi Kouadio Henri, Duminil Jérôme, Sabatier Sylvie-Annabel, Akaffou Doffou Sélastique. 2023. Rethinking iconic species reforestation in West Africa: Seeds shape harnessing is strategic for enhanced germination and vigorous growth in Khaya senegalensis and Parkia biglobosa. Forests, 14 (7):1311, 18 p.
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Url - jeu de données - Entrepôt autre : https://doi.org/10.7910/DVN/AEH9TP
Résumé : Seed size is a critical factor that can impact the regeneration process of plant populations. The objective of this study is to identify optimal seeds for the cultivation of two overexploited native forest species in Côte d'Ivoire, namely Khaya senegalensis (Desr.) A.Juss., 1830 and Parkia biglobosa (Jacq.) R.BR. ex G. Don, 1830. A total of 1080 seeds per species were evaluated for germination and seedling vigour in two distinct environments (dry and humid) in Côte d'Ivoire. The results demonstrated that, for Khaya senegalensis, larger seeds exhibited higher germination rates, whereas for Parkia biglobosa, smaller and medium-sized seeds showed better germination performance. However, regardless of species and study site, larger seeds consistently produced more vigorous seedlings. In this case, pretreatment tests on large seeds of Parkia biglobosa can potentially enhance their germination performance. Large seeds, ranging from 0.25–0.37 g in Khaya senegalensis and 0.2–0.32 g in Parkia biglobosa, appear to be the most suitable and best candidates for high-quality, high-performance seeds to optimise the cultivation of these species in Côte d'Ivoire. Distributing such seeds to farmers can contribute to the success of reforestation and agroforestry programs involving these target species in Côte d'Ivoire. These findings contribute to the sustainable management of the target species and can serve as a basis for restructuring forest regeneration policies in Côte d'Ivoire.
Mots-clés Agrovoc : reconstitution forestière, plantation forestière, qualité des semences, vigueur des semences, germination des graines, Parkia biglobosa
Mots-clés géographiques Agrovoc : Côte d'Ivoire
Mots-clés complémentaires : Khaya senegalensis
Mots-clés libres : Seed quality, Reforestation, Khaya senegalensis, Parkia biglobosa, Côte d’Ivoire
Classification Agris : K01 - Foresterie - Considérations générales
F03 - Production et traitement des semences
Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques
Agences de financement hors UE : Ministry of Higher Education and Scientific Research of Côte d'Ivoire, Institut de Recherche pour le Développement, Centre de Coopération Internationale en Recherche Agronomique pour le Développement
Auteurs et affiliations
- Adji Beda Innocent, UJLG (CIV) - auteur correspondant
- Letort Véronique, Université Paris-Saclay (FRA)
- Wang Xiumei, CAAS (CHN)
- Kang Meng Zhen, CAS (CHN)
- De Reffye Philippe, Université de Montpellier (FRA)
- Jaeger Marc, CIRAD-BIOS-UMR AMAP (FRA)
- Cilas Christian, CIRAD-DGDRS (CIV)
- Kouassi Kouadio Henri, UJLG (CIV)
- Duminil Jérôme, IRD (FRA)
- Sabatier Sylvie-Annabel, CIRAD-BIOS-UMR AMAP (FRA)
- Akaffou Doffou Sélastique, UJLG (CIV)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/605172/)
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