Overcoming propagation challenges of Soursop (Annona muricata L.) using soft stem cuttings over seasons

Annona muricata L., often known as Soursop, is prized for its therapeutic characteristics, particularly its possible anti-cancer effects, which has led to increased demand for this plant. In order to meet such a requirement, efficient propagation mechanisms are required for consistent output. Since seeds are not available year-round, vegetative propagation has been proposed as a potential option for mass production. Among the different propagation procedures, stem cutting is a simple, quick, and inexpensive way. This study focuses on employing soft stem cuttings, notably those with apical tips, treated with Indole-3-butyric acid (IBA), to improve clonal proliferation. The study found that treating soft stem cuttings with IBA concentrations of 1500 to 2000 parts per million (ppm) during the rainy season produced the best rooting outcomes. Shoots appeared within two weeks of implanting, followed by well-developed roots about 60 days from the initial day of cutting implanted. However, higher IBA concentrations (more than 2500 ppm) reduced survival rates. The highest success rate of 57.4 % ± 2.41 was obtained with the 2000 ppm IBA treatment on soft stem cuttings with apical bud. This approach provides a dependable alternative to seed propagation, ensuring genetic consistency and allowing for large-scale growth of A. muricata. Growers can efficiently reproduce this valuable plant to satisfy increasing demand by using soft stem cuttings treated with the appropriate IBA concentrations.