Abstract

MARTINEZ NOGUERA, Mónica Elizabeth  and  VELAZQUEZ GALEANO, Juan Manuel. Rooting of Hoya carnosa Stem Cuttings in Different Types of Substrates. Investig. Agrar. [online]. 2026, vol.28, n.1, e2801850.  Epub June 08, 2026. ISSN 2305-0683.  https://doi.org/10.18004/investig.agrar.2026.e2801850.

The Wax Flower (Hoya carnosa) is a hardy plant suitable for both outdoor and indoor environments. Likewise, it is a profitable option for growers who commercialize this species. However, its propagation can be compromised by unsuitable substrates for rooting. The objective of this experiment was to identify the most appropriate substrate for rooting H. carnosa cuttings. The study was conducted in a nursery located in Cabañas Caacupé from September to November 2022. The experimental design used was a randomized complete block design with 8 treatments and 4 replications. The treatments consisted of the following rooting substrates: washed sand, coarse sand, leaf mold + coarse sand, vermicompost, rice husk, phenolic foam, commercial substrate, and sphagnum moss. The variables evaluated were rooting percentage, length of the longest root, number of roots, fresh mass of rooted cuttings, and establishment percentage. An analysis of variance (ANOVA) was performed, along with a comparison of means using Tukey’s test at a 5% probability level. Significant differences were found in the variables of longest root length and number of roots. However, no significant differences were observed for rooting percentage, fresh mass of rooted cuttings, or establishment percentage. Aerated organic substrates such as vermicompost, leaf mold + coarse sand, and coarse sand promoted the formation of vigorous roots, indicating that substrate quality has a greater influence on root development than on the overall rooting percentage.

Keywords : ornamental plants; vegetative propagation.

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