ISHS Acta Horticulturae 541: IV International Symposium on New Floricultural Crops
PROPAGATION OF ARDISIA SPECIES NATIVE TO KOREA BY SEEDS OR BY ROOTING OF STEM TIP CUTTINGS |
| Authors: | A.K. Lee, J.K. Suh, M.S. Roh |
| Keywords: | Ardisia spp., seed germination, cutting, medium, plant growth regulators, |
| Abstract:
A. japonica (Thunb.) Blume, A. crenata Sims, and A. pusilla A. DC. are small evergreen shrubs growing under a shade near the seacoast of the southern part of Korea. Germination of A. japonica and A. pusilla was higher in dark than in light, whereas A. crenata in the light. Although A. japonica and A. crenata seeds germinated well at 25oC, A. pusilla germinated well at 30 oC. Seed germination of A. japonica was significantly promoted by 50 mg∙L-1 BA treatment compared with the control and other growth regulators, while that of A. crenata was also promoted by 50 mg∙L-1 BA as well as 100 mg∙L-1 Promalin treatment. Seed germination of three Ardisia species was higher when the seeds are stored in moist condition at 23 oC. Cuttings of both A. japonica and A. pusilla rooted well when propagated in rooting medium composed of vermiculite, while A. crenata did so with a medium composed of vermiculite plus peatmoss. The number of roots per cutting was significantly increased by 2,000 mg∙L-1 IBA in A. japonica and A. pusilla by 200 mg∙L-1 NAA in A. crenata. All three Ardisia species demonstrated differentiation of a new vascular cambium layer from the root, especially where pericycle parenchyma cells are formed that originated from the root primordia. These patterns observed in Ardisia had a close similarity of the root primordia differentiation observed in herbaceous plants. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
