RESEARCH ON SEED AND CUTTING PROPAGATION CAPACITY OF Goniothalamus vietnamensis Bân

Abstract

Goniothalamus vietnamensis Bân is a medicinal plant species of high value. Nonetherless, current research on propagation techniques for this species is still very limited, making it difficult to develop and conserve this valuable plant. This paper presented the results of a study on the propagation of Goniothalamus vietnamensis Bân in the Southeastern region. Propagation of Goniothalamus vietnamensis Bân was studied via both seeds and cuttings. For sexual propagation, the study on seed germination was conducted using six experimental treatments, where seeds were soaked at temperatures ranging from 30°C to 70°C for 6 hours. The experiment was arranged with four replications and 50 seeds per treatment per replication. For clonal propagation, the study employed the plant growth regulator IBA at four different concentrations (500 ppm, 1,000 ppm, 1,500 ppm, 2,000 ppm), using a completely randomized block design with three replications. The results indicated that the best germination was achieved with experimental treatment 3 (CT3), where seeds were soaked at temperatures from 40°C to 50°C. This treatment resulted in a germination rate of 90.5%, a germination vigor of 33.5%, with seeds beginning to germinate after 15 days and completing the process after 47 days. The concentration of IBA affected the rooting ability of cuttings; however, the rooting rate was relatively low, ranging from 1% to 5%. The findings of this study contribute scientific and practical foundations for the conservation and development of this valuable medicinal plant resource, supporting socio-economic development in the Southeastern region.