Article (Scientific journals)
Reproductive ecology of Coula edulis Baill., source of a valuable non-timber forest product
Moupela, Christian; Doucet, Jean-Louis; Daïnou, Kasso et al.
2014In Tropical Ecology, 55 (3), p. 327-338
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Keywords :
Diameter growth; Fruit production; Phenology; NTFP; Tropical rainforest
Abstract :
[en] The reproductive ecology of Coula edulis (Olacaceae), source of a highly valuable non-timber product for African populations, has been investigated on a large tree sample size in a Gabonese forest for a 3-year period, in order to propose options for its domestication. Reproduction is annual and the minimum tree diameter for flowering was 10.6 cm while the diameter for regular fructification was 23 cm. The annual diameter increment (ADI; mean = 0.22 cm year-1) was affected by crown exposure, but not by initial tree diameter or fruit production. Tree diameter influenced fruiting frequency and fruit production. There was a strong correlation between fruit production of 2011 and 2012 (Pearson's r = 0.85; P < 0.001), suggesting a high heritability of that trait. Phenotypical selection should be performed prior to any propagation activity. Moreover, as most of C. edulis fruits were sterile (64 %), we propose that sylvicultural strategies should be based on vegetative propagation.
Research center :
Université des Sciences et Techniques de Masuku (Franceville - Gabon)
Disciplines :
Environmental sciences & ecology
Author, co-author :
Moupela, Christian ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Doucet, Jean-Louis ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Laboratoire de Foresterie des régions trop. et subtropicales
Daïnou, Kasso  ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Laboratoire de Foresterie des régions trop. et subtropicales
Brostaux, Yves  ;  Université de Liège - ULiège > Sciences agronomiques > Statistique, Inform. et Mathém. appliquée à la bioingénierie
Fayolle, Adeline  ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Gestion des ressources forestières et des milieux naturels
Vermeulen, Cédric ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Laboratoire de Foresterie des régions trop. et subtropicales
Language :
English
Title :
Reproductive ecology of Coula edulis Baill., source of a valuable non-timber forest product
Publication date :
2014
Journal title :
Tropical Ecology
ISSN :
0564-3295
Publisher :
Scientific Publishers
Volume :
55
Issue :
3
Pages :
327-338
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Programme d'Appui Institutionnel et Développement des Ressources Humaines (Gabon)
Available on ORBi :
since 24 June 2013

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