In Vitro Propagation and Acclimatization of Dragon Tree (Dracaena draco)
1
Nextbiotech, 98 Rue Ali Belhouane, Agareb 3030, Tunisia
2
Plant Protection Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz 5355179854, Iran
3
Laboratory of Soil Biology, University of Neuchatel, 2000 Neuchatel, Switzerland
*
Author to whom correspondence should be addressed.
Horticulturae 2019, 5(3), 64; https://doi.org/10.3390/horticulturae5030064
Received: 24 June 2019 / Revised: 23 August 2019 / Accepted: 29 August 2019 / Published: 6 September 2019
(This article belongs to the Special Issue Innovation in Propagation of Fruit, Vegetable and Ornamental Plants)
In this study, an efficient in vitro procedure was developed for bud induction, rooting of developing shoots and greenhouse acclimatization of young plantlets of dragon tree (Dracaena draco). Effects of media (S1 (1 mg/L KIN and 1 mg/L NAA), S2 (3 mg/L KIN and 1 mg/L IAA), S3 (1 mg/L BAP and 2 mg/L IBA) and S4 (1 mg/L BAP and 1 mg/L NAA)) on shoot induction and media (R1 (0 mg/L IBA), R2 (0.5 mg/L IBA), R3 (1 mg/L IBA), and R4 (2 mg/L IBA)) on root induction were examined in order to find optimal plant hormone concentrations for efficient Dracaena draco dormant bud development and subsequent rooting. The best shoot induction and rooting media were S1 and S2, and R3 and R4, respectively. Dormant buds from one-year-old Dracaena draco plants submitted to this in vitro procedure allowed successful recovery of up to 8 individuals per explant used. In vitro grown plants were successfully acclimated in the greenhouse. The potential of this in vitro procedure for multiplication of this endangered tree is discussed in this report.
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Keywords:
acclimatization; auxins; cytokinins; Dracaena draco; in vitro
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MDPI and ACS Style
Galus, A.; Chenari Bouket, A.; Belbahri, L. In Vitro Propagation and Acclimatization of Dragon Tree (Dracaena draco). Horticulturae 2019, 5, 64. https://doi.org/10.3390/horticulturae5030064
AMA Style
Galus A, Chenari Bouket A, Belbahri L. In Vitro Propagation and Acclimatization of Dragon Tree (Dracaena draco). Horticulturae. 2019; 5(3):64. https://doi.org/10.3390/horticulturae5030064
Chicago/Turabian StyleGalus, Alexis; Chenari Bouket, Ali; Belbahri, Lassaad. 2019. "In Vitro Propagation and Acclimatization of Dragon Tree (Dracaena draco)" Horticulturae 5, no. 3: 64. https://doi.org/10.3390/horticulturae5030064
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