Orites myrtoidea (Proteaceae): effect of cold stratification in seed germination and indolebutyric acid on rooting of cuttings
Propagation by seeds and cuttings was studied in Orites myrtoidea (“Dwarf Radal”), a shrub with ornamental potential that belongs to the Proteaceae family and it is native to Chile and Argentina. The plant material was collected in the autumn in the Andes mountain range from Pinto, Bío Bío Region. Four levels of moist stratification at 10°C (0, 7, 14, and 21 days), and one level using Gibberellic acid (250 ppm) as a positive control, were tested to determine the effect on seed germination. The cutting’s rooting percentages and grades were determined by testing 5 levels of quick dip in IBA liquid solution (0; 1,000, 2,000, 3,000 and 4,000 ppm) and one level using IBA in powder formulation (1500 ppm). The highest germination percentages were found with 21 days stratification and with immersion in Gibberelic acid, 80% and 92%, respectively. In vegetative propagation the rooting percentage was over 90% in all treatments, however, all IBA-treated cuttings had a medium to abundant rooting, superior to the control, which had a scarce to moderate rooting.
Copyright (c) 2019 Flavia Schiappacasse, Carlos Peña, Patricio Peñailillo
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication.
- The articles in this journal are published under Creative Commons Attribution-NonCommercial 4.0 International License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories, on their website or ResearchGate) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (SeeThe Effect of Open Access).