Vásquez Zamora, Lucía MelissaRengifo Del Aguila, SofíaGuerrero Abad, Juan CarlosVallejos Torres, GeomarImán Correa, Sixto AlfredoTorres Flores, ElíasMesén Sequeira, FranciscoCorazon Guivin, Mike Anderson2022-08-172022-08-172022-04-28Vásquez, L.; Rengifo, S.; Guerrero, J.; Vallejos, G.; Imán, S.; Torres, E.; Mesén, F. & Corazon, M. (2022). Propagation of Theobroma cacao by rooted cuttings in Mini-Tunnels. Advances in Agriculture Volume 2022, Article ID 1196381, 8 pages. doi: 10.1155/2022/11963812356-654Xhttps://hdl.handle.net/20.500.12955/1838Cacao is an economically important crop that is currently planted in Asia, Africa, and America. Cuttings is a technique of vegetative propagation suitable for the conservation of selected desirable characteristics in cacao trees. The objective of this study was to evaluate the rooting of cacao cuttings in mini-tunnels with different doses of indole-3-butyric acid (IBA) to obtain a simple and viable vegetative propagation protocol. The experiment was carried out under a completely randomized design (CRD). Cuttings 5 to 7 cm long were collected from the middle area of cacao tree crowns and treated with doses of 0, 1000, 2000, and 3000 ppm of IBA; then they were placed in Jiffy© pellets and set to root in plastic-covered mini-tunnels with fog irrigation. The results indicate that treatments with 0 and 1000 ppm of IBA produced the highest values in survival (100%, both treatments) and rooting percentage (87.7 and 90.0%, respectively) as well as number and length of roots (4.3 roots-4.21 cm in length and 4.5 roots-5.32 cm in length, respectively); likewise, cuttings treated with 0 ppm rooted after 24–40 days, followed by doses of 1000 ppm (24–46 days). All rooted cuttings without IBA (0 ppm) achieved 100% acclimatization in nursery. In general, the best results were obtained without IBA application (Control 0 ppm) in all the parameters evaluated, similar to those obtained with the application of 1000 ppm IBA; these results indicate the success and efficiency of the vegetative propagation protocol proposed in this study.1. Introduction. 2. Materials and Methods. 3. Results and Discussions. 4. Conclusion. References.application/pdfenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/CacaoTheobroma cacao L.MalvaceaeMini-TunnelsPropagationinfo:eu-repo/semantics/articlehttps://purl.org/pe-repo/ocde/ford#4.04.00https://doi.org/10.1155/2022/1196381