Kouakou Laurent Kouakou, Jonas Patrick Dao, Kouadio Ignace Kouassi, Manehonon Martine Beugré , Mongomaké Koné, Jean-Pierre Baudoin, Irié Arsene Zoro Bi. (2016). Propagation of Garcinia kola (Heckel) by stem and root cuttings. Silva Fennica vol. 50 no. 4 article id 1588. https://doi.org/10.14214/sf.1588

Keywords: coppicing; vegetative propagation; bitter kola; non-mist polypropagators

Highlights: Roots and branches cuttings from mature forest trees are difficult to sprout; The highest mean numbers of roots and buds produced were obtained with softwood cuttings; The aqueous IBA treatment was more effective than the powder in promoting rooting and root development; Non-mist poly-propagator gave the best propagation results; Seedling stockplants cut above node 1 promoted most vigorous shoots production.

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The availability of appropriate propagation techniques is a major constraint to the domestication of the forest trees widely used by rural communities; such as Garcinia kola (Heckel). This study tested the ability of root and stem cuttings to regenerate vegetatively when treated with indole-3-butyric acid (IBA), and set in non-mist poly-propagator within a shaded nursery. It found that G. kola is amenable to propagation by softwood stem cuttings. Attention was given to the effect of cutting age (softwood, semi hardwood) and IBA application with regard to the sprouting and rooting efficiency. Bud and leaf emergence time were also investigated, as was the coppicing ability of the stump. Results revealed that roots and branches from mature forest trees did not sprout under any culture conditions. The highest percentages of rooting (70–85%) were obtained with softwood cuttings set in non-mist poly-propagator, regardless of hormonal treatment. The mean numbers of buds (2.9 ± 0.4) and roots (2.6 ± 0.1) produced by softwood cuttings was significantly greater than those obtained in the Control. The best average emergence time of buds (25.1 days ± 9.3) and leaves (36.8days ± 8.4) was obtained with cuttings treated with IBA and set in non-mist poly-propagator against, 54.4 ± 12.5 and 72.6 ± 3.4 days respectively for the Control. In general, non-mist poly-propagator gave the best propagation results. When coppiced, the shoots emerging from stumps with one node were the most vigorous.

Kouakou, Université Nangui Abrogoua, UFR/SN, Laboratoire de Génomique Fonctionnelle et Amélioration génétique, 02 BP 801 Abidjan, Côte d’Ivoire; Université Nangui Abrogoua, UFR Sciences de la Nature, Laboratoire de Biologie et Amélioration des Productions Végétales, 02 BP 801 Abidjan 02, Côte d’Ivoire E-mail: kk_laurent@yahoo.fr
Dao, Université Nangui Abrogoua, UFR/SN, Laboratoire de Génomique Fonctionnelle et Amélioration génétique, 02 BP 801 Abidjan, Côte d’Ivoire E-mail: daojonas@hotmail.fr
Kouassi, Université Nangui Abrogoua, UFR/SN, Laboratoire de Génomique Fonctionnelle et Amélioration génétique, 02 BP 801 Abidjan, Côte d’Ivoire E-mail: kouadioignace@yahoo.fr
Beugré , Université Nangui Abrogoua, UFR Sciences de la Nature, Laboratoire de Biologie et Amélioration des Productions Végétales, 02 BP 801 Abidjan 02, Côte d’Ivoire E-mail: beugremartine@yahoo.fr
Koné, Université Nangui Abrogoua, UFR Sciences de la Nature, Laboratoire de Biologie et Amélioration des Productions Végétales, 02 BP 801 Abidjan 02, Côte d’Ivoire E-mail: babadaoudi@gmail.com
Baudoin, Université de Liège, Gembloux Agro-Bio Tech, Laboratoire Agroécologie tropicale et Horticulture, Passage des Déportés, 2 B 5030 Gembloux, Belgique E-mail: jean-pierre.baudoin@ulg.ac.be
Zoro Bi, Université Nangui Abrogoua, UFR/SN, Laboratoire de Génomique Fonctionnelle et Amélioration génétique, 02 BP 801 Abidjan, Côte d’Ivoire E-mail: banhiakalou@yahoo.fr

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