46. Influence of growth regulators (IAA and GA3) and chilling treatment on propagation of Ginkgo biloba by seeds

Author: Omer Ibrahim, Valeria Ivanova, Petya Gercheva

DOI: n/a


Seeds of Ginkgo biloba treated with GA3 and/or IAA at different concentrations (1000, 1500, 2000 and 2500 ppm) attained the highest germination percentage (86.33%) when treated with GA3 at 2500 ppm, whilst seedling growth was stimulated in significantly higher extends using IAA with or without GA3. Furthermore, the efficacy of chilling was separately investigated at 5°C for 1-, 2- or 3-month periods comparing to room temperature which resulted in the highest germination % (64.44%).